Eb500UserManual Eb500 Manual

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EmbeddedBlue™ 500

User Manual

2 User Manual

Part Number 0000033 – Revision A

Last revised on December 4, 2003 – Printed in the United States of America

A7 Engineering, Inc.

12860 C Danielson Court

Poway, CA 92064

A7 Engineering, Inc. PBASIC is a trademark and BASIC Stamp is a registered trademark of

Parallax, Inc. Bluetooth and the Bluetooth logo are registered trademarks of the Bluetooth

SIG. Windows is a registered trademark of Microsoft Corporation. Other brand and product

names are trademarks or registered trademarks of their respective holders.

The information contained in this document is subject to change without notice. A7

Engineering, Inc. and its staff make no warranty of any kind for the correctness,

completeness, interpretation or use of the information contained herein. It is the user’s

responsibility to comply with all applicable copyright laws.

EmbeddedBlue 500 3

Table of Contents

Introduction .......................................................................................................................................... 7

Manual Conventions .......................................................................................................................... 7

eb500 Basics ........................................................................................................................................ 8

Command Mode ................................................................................................................................ 8

Data Mode ......................................................................................................................................... 8

I/O Lines............................................................................................................................................. 9

Resetting the eb500 to the Factory Default Settings......................................................................... 9

Switching between Data Mode and Command Mode ....................................................................... 9

BASIC Stamp Application Debugging ............................................................................................. 13

Hardware Connections ...................................................................................................................... 14

Board Of Education ......................................................................................................................... 15

Basic Stamp Activity Board.............................................................................................................. 16

BS2P40 Demo Board ...................................................................................................................... 17

Javelin Stamp Demo Board............................................................................................................. 18

SumoBoard...................................................................................................................................... 19

Super Carrier Board......................................................................................................................... 20

Establishing a Connection................................................................................................................ 21

Connecting two eb500 Modules ...................................................................................................... 21

Connecting a PC with an eb600 to a Board of Education ............................................................... 25

Connecting a PC with a DBT-120 to a BOE.................................................................................... 28

Connecting a BOE to a PC with a DBT-120 .................................................................................... 32

Connecting an iPAQ h1940 to a Board of Education ...................................................................... 35

Connecting a Board of Education to an iPAQ h1940 ...................................................................... 37

Communications ................................................................................................................................ 40

Communicating between Two eb500 Modules................................................................................ 40

Communicating between a PC with an eb600 and a BOE.............................................................. 46

Communicating between a PC with a DBT-120 and a BOE ........................................................... 51

Communicating between an iPAQ h1940 an a BOE....................................................................... 57

eb500 Commands .............................................................................................................................. 63

Command Basics............................................................................................................................. 63

BASIC Stamp Application eb500 Command Error Handling........................................................... 64

Connect............................................................................................................................................ 65

Disconnect ....................................................................................................................................... 66

Get Address..................................................................................................................................... 67

Get Connectable Mode.................................................................................................................... 68

Get Discoverable Mode ................................................................................................................... 69

Get Escape Character ..................................................................................................................... 70

Get Flow Control.............................................................................................................................. 71

Get Link Timeout ............................................................................................................................. 72

Help.................................................................................................................................................. 73

List ................................................................................................................................................... 74

Return to Data Mode ....................................................................................................................... 75

Set Baud Rate ................................................................................................................................. 76

Set Connectable Mode .................................................................................................................... 77

Set Discoverable Mode.................................................................................................................... 78

4 User Manual

Set Escape Character...................................................................................................................... 79

Set Flow Control .............................................................................................................................. 80

Set Link Timeout.............................................................................................................................. 81

Switch to Command Mode............................................................................................................... 82

Version............................................................................................................................................. 83

eb500 Error Codes ............................................................................................................................. 84

Technical Specifications ................................................................................................................... 85

Operating Parameters ..................................................................................................................... 85

Dimensions ...................................................................................................................................... 86

Pinout Diagram ................................................................................................................................ 87

Frequently Asked Questions ............................................................................................................ 88

Contact Information ........................................................................................................................... 90

EmbeddedBlue 500 5

Table of Figures

Figure 1: eb500 Module........................................................................................................ 14

Figure 2: Board of Education Board ..................................................................................... 15

Figure 3: Basic Stamp Activity Board ................................................................................... 16

Figure 4: BS2P40 Demo Board ............................................................................................ 17

Figure 5: Javelin Stamp Demo Board................................................................................... 18

Figure 6: SumoBoard............................................................................................................ 19

Figure 7: Super Carrier Board .............................................................................................. 20

Figure 8: eb500 Bluetooth Address Output .......................................................................... 23

Figure 9: iPAQ Bluetooth Authorization Request Dialog ...................................................... 39

Figure 10: HyperTerminal Input and Debug Output.............................................................. 47

Figure 11: HyperTerminal Output - Hello World ................................................................... 50

Figure 12: Hello World Pocket PC Application ..................................................................... 58

Figure 13: iPAQ Bluetooth Brower Dialog ............................................................................ 59

Figure 14: RXEB500 Pocket PC Application ........................................................................ 61

Figure 15: eb500 Dimensions............................................................................................... 86

Figure 16: eb500 Pinout Diagram......................................................................................... 87

6 User Manual

Table of Tables

Table 1: eb500 Error Codes ................................................................................................. 84

Table 2: eb500 Operating Parameters ................................................................................. 85

Table 3: eb500 Dimensions .................................................................................................. 86

Table 4: eb500 Pinout Description........................................................................................ 87

EmbeddedBlue 500 7

Introduction

Congratulations on your purchase of the EmbeddedBlue 500 (eb500) module. The eb500

module provides Bluetooth® connectivity for 8/16 bit microcontroller applications without

having to know the details of Bluetooth technology. Hobbyists, developers, and OEMs can

take advantage of advanced wireless connectivity with this easy to use module.

The eb500 module provides a point to point connection much like a standard serial cable.

Connections are made dynamically and can be established between two eb500 modules or

an eb500 module and a standard Bluetooth v1.1 device. Devices can be dynamically

discovered and connected in an ad-hoc manner.

Manual Conventions

Below is a list of typographical conventions used in this manual:

Text in this font

• Is used to show data that is sent to the eb500.

• Inside a gray box is used to show data that is sent from

the eb500.

Text in this font

• Is used to show source code.

In the eb500 Commands section of this manual

• Required parameters and placeholders appear in standard lowercase type.

• Placeholders appear in italics. For example, if address shows up in a syntax line,

the actual address of the device must be entered.

• Required parameter options are separated by a vertical bar |.

• Optional parameters are enclosed in brackets [ ].

8 User Manual

eb500 Basics

The eb500 supports two main operating modes: command mode and data mode. Upon

power up the eb500 enters command mode and is ready to accept serial commands. The

factory default communication parameters are 9600 Baud, 8 Data Bits, 1 Stop Bit, No Parity,

and No Flow Control. The eb500 supports commands to modify the baud rate and flow

control settings.

Command Mode

In this mode there are a number of commands that can be sent to change the baud rate,

locate other devices that are in range, check the firmware version, etc. All commands are

sent using visible ASCII characters (123 is 3 bytes “123”). Upon the successful transmission

of a command, the ACK string will be returned. If there is a problem in the syntax of the

transmission a NAK string is returned. After either the ACK or NAK, a carriage-return <CR>

character is returned. When a prompt (<CR> followed by a ‘>’) is returned, it means that the

eb500 radio is in the idle state and is waiting for another command. White spaces do matter

and are used to separate argument parameters of the command and a carriage-return

<CR> (ASCII 13) is used to mark the end of the command.

Data Mode

Once the eb500 radio is connected to another Bluetooth device, the eb500 automatically

switches into data mode. All data transmitted while in this mode will be sent to the remote

device and, therefore, NO further commands can be sent until the eb500 radio is

disconnected or switched back to command mode by use of the mode control I/O line or the

Switch to Command Mode command.

The connection status line of the eb500 module can be monitored to determine if there is an

active connection. Additionally, whenever a connection is present, the Connection Status

LED (Figure 1) on the eb500 module will be on.

EmbeddedBlue 500 9

I/O Lines

The eb500 module features a 20 pin header for connecting to the Parallax AppMod header.

A full device pinout is available in the Technical Specifications section of this manual. There

are several pins that are important when performing the exercises in the Establishing a

Connection and Communications sections of this manual.

Pin 3 of the eb500 module, which aligns with the pin designated “P0” of the AppMod

header, is the UART data output pin.

Pin 4 of the eb500 module, which aligns with the pin designated “P1” of the AppMod

header, is the UART data input pin.

Pin 8 of the eb500 module, which aligns with the pin designated “P5” of the AppMod

header, is the Connection Status pin. A BASIC Stamp application can interrogate this

pin to determine the connection status of the eb500 radio.

Pin 9 of the eb500 module, which aligns with the pin designated “P6” of the AppMod

header, is the Mode Control pin. A BASIC Stamp application can drive this pin high

to enter Data Mode or low to enter Command Mode.

Resetting the eb500 to the Factory Default Settings

The eb500 module can be reset to the factory default settings by shorting Pin 8 and Pin 9

and then applying power to the eb500 module.

Switching between Data Mode and Command Mode

When a Connection command is issued, the eb500 attempts to establish a connection to the

device with the address specified in the command. Once a connection is established, the

eb500 switches into data mode. At this point all data sent to the eb500 is transmitted to the

remote Bluetooth device over the wireless link. It is possible to switch from data mode to

command mode, issue commands, and then return to data mode, while maintaining a

connection. The eb500 allows you to switch between data mode and command mode by

issuing the Switch to Command Mode and Return to Data Mode serial commands or by

driving the mode control I/O line (Pin 9) of the eb500 module.

The following BASIC Stamp application uses the Switch to Command Mode and Return to

Data Mode serial commands to switch between data mode and command mode. This

application is available in electronic form on the accompanying CD in the Samples folder in

the file CmdModeSoft.bs2.

'{$STAMP BS2}

szData VAR BYTE(20)

'Wait for the eb500 radio to be ready

PAUSE 1000

'Connect to the remote device

10 User Manual

SEROUT 1,84,["con 00:0C:84:00:07:D8",CR]

SERIN 0,84,[WAIT("ACK",CR)]

WaitForConnection:

IF in5 = 0 THEN WaitForConnection

DEBUG "Connected",CR

SEROUT 1,84,["This text is sent in data mode",CR]

'Switch to Command Mode

PAUSE 2000

SEROUT 1,84,["+++"]

SERIN 0,84,[WAIT(CR,">")]

DEBUG "In Command Mode",CR

'Get the eb500 Bluetooth Address

SEROUT 1,84,["get addr",CR]

SERIN 0,84,[WAIT("ACK",CR)]

'Read the local address from the get command

SERIN 0,84,[STR szData\17]

SERIN 0,84,[WAIT(CR,">")]

szData(17) = 0

DEBUG STR szData\17,CR

'Return to Data Mode

SEROUT 1,84,["ret",CR]

SERIN 0,84,[WAIT("ACK",CR)]

DEBUG "In Data Mode",CR

SEROUT 1,84,["My Bluetooth address is ",STR szData,CR]

'Switch to Command Mode

PAUSE 2000

EmbeddedBlue 500 11

SEROUT 1,84,["+++"]

SERIN 0,84,[WAIT(CR,">")]

DEBUG "In Command Mode",CR

'Disconnect from remote device

SEROUT 1,84,["dis",CR]

SERIN 0,84,[WAIT(CR,">")]

DEBUG "Disconnected",CR

The following BASIC Stamp application uses the mode control I/O line of the eb500 module

to switch between data mode and command mode. Switching between data mode and

command mode via the mode control I/O line is preferred, as it is faster than the serial

method. This application is available in electronic form on the accompanying CD in the

Samples folder in the file CmdModeHard.bs2.

'{$STAMP BS2}

szData VAR BYTE(20)

'Wait for the eb500 radio to be ready

PAUSE 1000

'Connect to the remote device

SEROUT 1,84,["con 00:0C:84:00:07:D8",CR]

SERIN 0,84,[WAIT("ACK",CR)]

WaitForConnection:

IF in5 = 0 THEN WaitForConnection

DEBUG "Connected",CR

SEROUT 1,84,["This text is sent in data mode",CR]

'I/O Line 6 allows us to switch to Command Mode

OUTPUT 6

'Switch to Command Mode

LOW 6

SERIN 0,84,[WAIT(CR,">")]

DEBUG "In Command Mode",CR

12 User Manual

'Get the eb500 Bluetooth Address

SEROUT 1,84,["get addr",CR]

SERIN 0,84,[WAIT("ACK",CR)]

'Read the local address from the get command

SERIN 0,84,[STR szData\17]

SERIN 0,84,[WAIT(CR,">")]

szData(17) = 0

DEBUG STR szData\17,CR

'Return to Data Mode

HIGH 6

PAUSE 50

DEBUG "In Data Mode",CR

SEROUT 1,84,["My Bluetooth address is ",STR szData,CR]

'Switch to Command Mode

LOW 6

SERIN 0,84,[WAIT(CR,">")]

DEBUG "In Command Mode",CR

'Disconnect from remote device

SEROUT 1,84,["dis",CR]

SERIN 0,84,[WAIT(CR,">")]

DEBUG "Disconnected",CR

EmbeddedBlue 500 13

BASIC Stamp Application Debugging

When debugging your BASIC Stamp application that uses an eb500 it is important that the

BASIC Stamp application and the eb500 are in sync. When the BASIC Stamp Editor begins

the downloading process the BASIC Stamp is reset; however, this reset does not reset the

eb500. This can cause an existing application on the BASIC Stamp to begin executing,

which can lead to a situation where the new application and the eb500 are not in sync. It is

possible that the eb500 could be in Data Mode or in an unpredictable command mode state,

due to the execution of the existing BASIC Stamp application. Therefore, during the

application debugging process, it is recommended that the following code be inserted at the

beginning of your BASIC Stamp application, before you read or set any I/O points or issue

any commands to the eb500.

‘*************************************************************

IF in5 = 0 THEN ClearCmd

DEBUG “eb500 Connected (in Data Mode)”,CR

‘Switch to Command Mode

LOW 6

SERIN 0,84,[WAIT(CR,”>”)]

‘Disconnect from the remote device

SEROUT 1,84,[“dis”,CR]

SERIN 0,84,[WAIT(CR,”>”)]

GOTO Start

ClearCmd:

DEBUG “eb500 in Command Mode”,CR

‘Issue a carriage-return to clear any commands

SEROUT 1,84,[CR]

SERIN 0,84,[WAIT(“>”)]

‘*************************************************************

14 User Manual

Hardware Connections

The eb500 module is designed to interface with a 5V CMOS signal environment. It supports

a power supply of 5 – 12V and can be connected directly to boards supporting the Parallax

AppMod header. When inserting the eb500 module to any of the supported Parallax boards,

it is important that Pin 1 of the eb500 module, marked with a white dot and a square (Figure

1), is inserted into the VSS pin of the AppMod header on the Parallax boards. A full device

pinout is available in the Technical Specifications section of this manual.

Figure 1: eb500 Module

Pin 1

Connection

Status LED

EmbeddedBlue 500 15

Board Of Education

The Board Of Education (BOE) contains an AppMod header and supports a direct

connection with the eb500 module. On the Board of Education, the AppMod header

is labeled X1 (Figure 2). When inserting the eb500 module into the Board of

Education AppMod header, assure that you insert Pin 1 of the eb500 module,

marked with a white dot and a square, into the VSS pin of the AppMod header.

www.stampsinclass.com

Reset

STAMPS

CLASS

Board of Education

Pwr

9 Vdc

Battery

6-9VDC

Sout

Sin

ATN

Vss

P11

Vin

P10

P15

P14

P13

P12

Vdd

Rst

Vss

Black

Red

X4 X5

15 14 13 12

Vss

P11

P13

P15

Vin

Vss

P10

P12

P14

Vdd

0 1 2

Vdd

P15

P14

P13

P12

P11

P10

Vdd VssVin

Figure 2: Board of Education Board

AppMod

Header

VSS Pins

16 User Manual

Basic Stamp Activity Board

The Basic Stamp Activity Board contains an AppMod header and supports a direct

connection with the eb500 module when using a BS2 processor. On the Basic Stamp

Activity Board, the AppMod header is labeled X7 (Figure 3). When inserting the

eb500 module into the Basic Stamp Activity Board AppMod header, assure that you

insert Pin 1 of the eb500 module, marked with a white dot and a square, into the

VSS pin (Pin 1) of the AppMod header.

Pwr

Reset

Stamp Activity Board

6-12VAC

9-24VDC

Need Tech Support?

email stamptech@parallaxinc.com

www.parallaxinc.com

X1 X4

P4/11 P5/10 P6/9 P7/8

P5/7

P3/12

P4/11

A B

Aout

P0=mPin

P1=zPin

Rev C

1 2

↓

C6C71

BS1-IC

BS2-IC

Figure 3: Basic Stamp Activity Board

AppMod

Header

VSS Pins

EmbeddedBlue 500 17

BS2P40 Demo Board

The BS2P40 Demo Board contains an AppMod header and supports a direct

connection with the eb500 module. On the BS2P40 Demo Board, the AppMod

header is labeled X1 (Figure 4). When inserting the eb500 module into the BS2P40

Demo Board AppMod header, assure that you insert Pin 1 of the eb500 module,

marked with a white dot and a square, into the VSS pin of the AppMod header.

P40 Demo Board

Power

JU2

Reset

6-9 VDC

1 2 3 4 5 6 7 8 9 101112131415161718192021222324252627282930

A15

A14

A13

A12

A11

A10

P15

P14

P13

P12

P11

P10

JU1

Vdd

P14

P12

P10

Vin

P15

P13

P11

Vss

BS2p24

BS2p40

VddVss

Vin

Vdd

VssVin

Figure 4: BS2P40 Demo Board

AppMod

Header

VSS Pins

18 User Manual

Javelin Stamp Demo Board

The Javelin Stamp Demo Board contains an AppMod header and supports a direct

connection with the eb500 module. On the Javelin Stamp Demo Board, the AppMod

header is labeled X1 (Figure 5). When inserting the eb500 module into the Javelin

Stamp Demo Board AppMod header, assure that you insert Pin 1 of the eb500

module, marked with a white dot and a square, into the VSS pin of the AppMod

header.

Figure 5: Javelin Stamp Demo Board

AppMod

Header

VSS Pins

EmbeddedBlue 500 19

SumoBoard

The SumoBoard contains an AppMod header and supports a direct connection with

the eb500 module. On the SumoBoard, the AppMod header is labeled X10 (Figure

6). When inserting the eb500 module into the SumoBoard AppMod header, assure

that you insert Pin 1 of the eb500 module, marked with a white dot and a square, into

the VSS pin of the AppMod header.

Figure 6: SumoBoard

AppMod

Header

VSS Pins

20 User Manual

Super Carrier Board

The Super Carrier Board contains an AppMod header and supports a direct

connection with the eb500 module. On the Super Carrier Board, the AppMod header

is labeled X1 (Figure 7). When inserting the eb500 module into the Super Carrier

Board AppMod header, assure that you insert Pin 1 of the eb500 module, marked

with a white dot and a square, into the VSS pin of the AppMod header.

Reset

Pwr

Need Tech Support?

Send email to:

stamptech@parallaxinc.com

Basic Stamp Super Carrier

Rev A

P15

P14

P13

P12

P11

P10

Vdd

Vss

Vin

Vss

PCO

PCI

Vdd

Rst

Vin



Vss

Rocklin, CA - USA

Figure 7: Super Carrier Board

AppMod

Header

VSS Pins

EmbeddedBlue 500 21

Establishing a Connection

This section contains a number of exercises that demonstrate methods of establishing

Bluetooth wireless connections with the eb500. The scenarios described are not meant to

form an exhaustive list, but rather illustrate a number of more common and useful

configurations. All source code shown in these exercises is available in electronic form on

the accompanying CD, in the Samples folder, using the filename used in this manual.

Connecting two eb500 Modules

In this exercise we will step through the process of establishing a connection between an

eb500 inserted into a Board of Education board and an eb500 inserted into a SumoBoard

board.

To perform this exercise, as documented, you will need a Board of Education board, a

SumoBoard board, and two eb500 modules. If you are using any of the other supported

Parallax boards, you may need to make adjustments to this exercise.

Step 1: Write a BASIC Stamp Application to Get the eb500 Address

In this step we will write a BASIC Stamp application to interrogate an eb500 for its

unique Bluetooth address.

1. Open the Basic Stamp Editor.

2. Enter the following program code into the editor.

'{$STAMP BS2}

szData VAR BYTE(20)

'Wait for the eb500 radio to be ready

PAUSE 1000

'Get the eb500 Bluetooth Address

SEROUT 1,84,["get addr",CR]

SERIN 0,84,[WAIT(“ACK”,CR)]

22 User Manual

'Read the local address from the get command

SERIN 0,84,[STR szData\17]

SERIN 0,84,[WAIT(CR,”>”)]

szData(17) = 0

DEBUG STR szData\17,CR

The BASIC Stamp application issues an eb500 Get Address command and then

reads and displays the response in the debug window. The response is the Bluetooth

address of the local eb500 module.

3. On the File menu, click Save As.

4. In the File name box, enter a file name to which to save the program just created.

For example, GetAddress.bs2.

5. Click Save.

Step 2: Insert the eb500 Modules into the BOE and SumoBoard Boards

In this step we will insert the eb500 modules into the Board of Education (BOE) and

SumoBoard boards.

1. Insert an eb500 module into the AppMod header of the Board of Education board;

assuring that Pin 1 of the eb500 module is inserted into the VSS pin of the AppMod

header.

2. Insert an eb500 module into the AppMod header of the SumoBoard board; assuring

that Pin 1 of the eb500 module is inserted into the VSS pin of the AppMod header.

Step 3: Get the Address of the eb500 on the Board of Education Board

In this step we will get the Bluetooth address of the eb500 module on the Board of

Education board. We will then use this address in the next step.

1. Connect the Board of Education board serial port to the PC.

2. Apply power to the Board of Education board.

3. On the Run menu, click Run.

The Bluetooth address for the eb500 on the Board of Education board is shown in

the debug window (Figure 8).

4. On the Debug Terminal #1 dialog click Close.

5. Disconnect the power from the Board of Education board.

6. Disconnect the Board of Education board serial port from the PC.

EmbeddedBlue 500 23

Figure 8: eb500 Bluetooth Address Output

Step 4: Connect the eb500 on the SumoBoard to the eb500 on the BOE

In this step we will develop and run a BASIC Stamp application on the SumoBoard to

establish a connection with the Board of Education.

1. Using the BASIC Stamp Editor; on the File menu, click New.

This will create a new project window within the BASIC Stamp Editor.

2. Enter the following program code into the editor, replacing the Bluetooth device

address with the device address of the eb500 on the Board of Education board,

which we obtained in the previous step.

‘{$STAMP BS2}

‘I/O Line 5 provides the connection status

INPUT 5

‘Wait for the eb500 radio to be ready

PAUSE 1000

‘Connect to the remote device

SEROUT 1,84,[“con 00:0C:84:00:07:D7”,CR]

SERIN 0,84,[WAIT(“ACK”,CR)]

WaitForConnection:

24 User Manual

IF in5 = 0 THEN WaitForConnection

DEBUG “Connected”,CR

‘Wait for 20 seconds

PAUSE 20000

‘I/O Line 6 allows us to switch to Command Mode

OUTPUT 6

‘Switch to Command Mode

LOW 6

SERIN 0,84,[WAIT(CR,”>”)]

‘Disconnect from the remote device

SEROUT 1,84,[“dis”,CR]

SERIN 0,84,[WAIT(CR,”>”)]

DEBUG “Disconnected”,CR

The BASIC Stamp application establishes a connection with the remote Bluetooth

device, waits twenty seconds, switches back to command mode and then

disconnects from the remote device.

3. On the File menu, click Save As.

4. In the File name box, enter a file name to which to save the program just created.

For example, Connect.bs2.

5. Click Save.

6. Apply power to the Board of Education board.

7. Apply power to the SumoBoard board.

8. On the Run menu, click Run.

The Connection Status LED (Figure 1) on both eb500 modules will turn on when a

connection is established between the two eb500 modules.

9. Disconnect the power from the Board of Education board.

10. Disconnect power from the SumoBoard board.

EmbeddedBlue 500 25

Connecting a PC with an eb600 to a Board of Education

In this exercise we will step through the process of establishing a connection between a PC

that has an eb600 PC Adapter to an eb500 inserted into a Board of Education board.

To perform this exercise, as documented, you will need an eb600 PC Adapter, a Board of

Education board and two eb500 modules. If you are using any of the other supported

Parallax boards, you may need to make adjustments to this exercise.

Step 1: eb600 PC Adapter Setup

In this step we will attach an eb500 module to the eb600 PC Adapter and apply

power to the device.

1. Insert an eb500 module into the eb600 PC Adapter header; assuring that Pin 1 of

the eb500 module is inserted into Pin 1 of the header on the eb600 PC Adapter.

2. Connect the eb600 PC Adapter to a serial port on the PC using the provided

straight through serial cable.

The PC serial port must be available for HyperTerminal use.

3. Apply power to the eb600 PC Adapter.

Step 2: HyperTerminal Setup

In this step we will setup the Windows HyperTerminal application to establish a

connection with the eb500 attached to the eb600 PC Adapter.

1. Open HyperTerminal.

This will display the Connection Description dialog.

2. In the Name box, type the name of your connection. For example, EB600.

3. Click OK.

This will display the Connect To dialog.

4. In the Connect using dropdown, select the serial port to which you have connected

the eb600 PC Adapter.

5. Click OK.

This will display the Properties dialog.

6. In the Bits per second dropdown, select 9600.

7. In the Data bits dropdown, select 8.

8. In the Parity dropdown, select None.

9. In the Stop bits dropdown, select 1.

26 User Manual

10. In the Flow control dropdown, select None.

11. Click OK.

This will establish a connection with the serial port.

12. On the Call menu, click Disconnect.

This will disconnect the connection just established, so that we can modify the

connection properties in the following actions.

13. On the File menu, click Properties.

This will display the Properties dialog.

14. On the Settings tab, click ASCII Setup.

This will display the ASCII Setup dialog.

15. Check the Send line ends with line feeds checkbox.

16. Check the Echo typed characters locally checkbox.

17. Check the Append line feeds to incoming line ends checkbox.

18. Check the Wrap lines that exceed terminal width checkbox.

19. Click OK.

This will return to the Properties dialog.

20. Click OK.

21. On the Call menu, click Call.

This will establish a connection with the serial port.

Step 3: Board of Education – eb500 Setup

In this step we will attach an eb500 module to the Board of Education board and

apply power to the device.

1. Insert an eb500 module into the AppMod header of the Board of Education board;

assuring that Pin 1 of the eb500 module is inserted into the VSS pin of the AppMod

header.

2. Apply power to the Board of Education board.

Power can be applied by attaching a 9 Volt battery, or the AC-Adapter provided by

Parallax.

EmbeddedBlue 500 27

Step 4: Establish a Connection

In this step we will establish a connection between the PC and the Board of

Education.

1. Using HyperTerminal, get the address of the eb500 module that is connected to the

Board of Education board by using the eb500 LST serial command.

By issuing the LST command, the eb500 connected to the eb600 lists other

Bluetooth devices that are in range and visible. Please note that this operation will

take 30 seconds to complete.

To obtain the address, type lst at the “>” prompt and press the return key.

Example:

>lst

ACK

00:0C:84:00:07:D7

2. Using HyperTerminal, establish a connection with the eb500 that is connected to the

Board of Education board by using the eb500 CON serial command.

To establish a connection, type con followed by a space, followed by the address

returned in the previous action, followed by a carriage-return. The Connection Status

LED (Figure 1) on both eb500 modules will turn on when a connection is established.

Example:

>con 00:0C:84:00:07:D7

ACK

3. Disconnect power from both the eb600 PC Adapter and the Board of Education

boards.

The removal of power resets the eb500 so that when power is restored the eb500

will boot into command mode.

28 User Manual

Connecting a PC with a DBT-120 to a BOE

In this exercise we will step through the process of establishing a connection from a PC that

has a D-Link® DBT-120 Bluetooth USB Adapter to an eb500 module inserted into a Board

of Education (BOE) board.

To perform this exercise, as documented, you will need a D-Link DBT-120, a Board of

Education board, and an eb500 module. If you are using any of the other supported Parallax

boards, you may need to make adjustments to this exercise.

On the PC, the DBT-120 Bluetooth Software associates a COM port for establishing a

connection from the PC to a remote Bluetooth device and a separate COM port for

connections that are established from a remote Bluetooth device to the PC. This exercise

demonstrates establishing a connection from the PC to a remote eb500. The next exercise

will demonstrate establishing a connection from a remote eb500 to the PC.

The D-Link DBT-120 Bluetooth USB Adapter software must be fully installed prior to

establishing a connection. The PC settings shown in this exercise are based upon the

software provided with the D-Link DBT-120 Bluetooth USB Adapter.

Step 1: DBT-120 Setup

In this step we will attach the DBT-120 USB Adapter to the PC. The software for the

DBT-120 should already be setup.

1. Connect the DBT-120 to an available USB port on the PC, following the instructions

provided with the DBT-120 Bluetooth USB Adapter.

Step 2: Board of Education – eb500 Setup

In this step we will attach an eb500 module to the Board of Education board and

apply power to the device.

1. Insert an eb500 module into the AppMod connector of the Board of Education

board; assuring that Pin 1 of the eb500 module is inserted into the VSS pin of the

AppMod header.

2. Apply power to the Board of Education board.

Power can be applied by attaching a 9 Volt battery, or the AC-Adapter provided by

Parallax.

EmbeddedBlue 500 29

Step 3: Establish a Connection Using the DBT-120 Bluetooth Software

In this step we will establish a connection from the PC to the eb500 module inserted

into the Board of Education board.

The actions in this step need to be performed only once for the eb500. After

performing the actions in this step, the connection details will be stored on the PC.

Therefore, future connections can be established to an eb500 by simply opening the

associated COM port.

1. Open My Bluetooth Places by double-clicking on the desktop icon.

This will display the My Bluetooth Places dialog.

2. Click View devices in range to locate the eb500 module connected to the Board of

Education.

Provided the eb500 on the Board of Education is within range, eb500 will be shown

in the window.

3. Select eb500 and click Discover services.

The A7 Serial Port service will be shown in the window.

4. Select A7 Serial Port and click Connect to this service.

This will establish a connection from the PC to the eb500 on the Board of Education

board and associate this connection with a specific COM port.

5. If the A7 Serial Port dialog is shown, click OK.

6. Select A7 Serial Port and click Display service properties.

This will display the Bluetooth Properties dialog.

7. In the Port dropdown, which is disabled, please note the COM port shown.

The DBT-120 Bluetooth software associates a specific COM port for a connection

from the PC to an eb500. Applications, such as HyperTerminal, use this COM port to

establish a connection and communicate with an eb500 from the PC. Remember,

this COM port is used to establish a connection from the PC to the eb500. A different

COM port is used when a connection is established from the eb500 to the PC.

8. Click OK.

9. Select A7 Serial Port and click Disconnect from this service.

This will disconnect the connection to the eb500 on the Board of Education board.

30 User Manual

Step 4: HyperTerminal Setup

In this step we will setup the Windows HyperTerminal application to establish a

connection with the eb500 on the Board of Education board.

1. Open HyperTerminal.

This will display the Connection Description dialog.

2. In the Name box, type the name of your connection. For example, eb500-BOE.

3. Click OK.

This will display the Connect To dialog.

4. In the Connect using dropdown, select the serial port to which the DBT-120

Bluetooth software associated with the connection from the PC to the eb500 on the

Board of Education board.

The COM port associated with the connection was discovered in the previous step.

5. Click OK.

This will display the Properties dialog.

6. In the Bits per second dropdown, select 9600.

7. In the Data bits dropdown, select 8.

8. In the Parity dropdown, select None.

9. In the Stop bits dropdown, select 1.

10. In the Flow control dropdown, select None.

11. Click OK.

This will establish a connection with the eb500 on the Board of Education board.

12. On the Call menu, click Disconnect.

This will disconnect the connection just established, so that we can modify the

connection properties in the following actions.

13. On the File menu, click Properties.

This will display the Properties dialog.

14. On the Settings tab, click ASCII Setup.

This will display the ASCII Setup dialog.

15. Check the Send line ends with line feeds checkbox.

16. Check the Echo typed characters locally checkbox.

17. Check the Append line feeds to incoming line ends checkbox.

EmbeddedBlue 500 31

18. Check the Wrap lines that exceed terminal width checkbox.

19. Click OK.

This will return to the Properties dialog.

20. Click OK.

Step 5: Establish a Connection Using HyperTerminal

In this step we will establish a connection from the PC to the eb500 on the Board of

Education, using HyperTerminal. This step relies on the connection information

created previously in Step 3.

1. On the Call menu, click Call.

This will establish a connection with the eb500 on the Board of Education board.

The Connection Status LED (Figure 1) on the eb500 module will turn on when a

connection is established.

2. On the Call menu, click Disconnect.

This will close the connection with the eb500 on the Board of Education.

32 User Manual

Connecting a BOE to a PC with a DBT-120

In this exercise we will step through the process of establishing a connection from an eb500

module inserted into a Board of Education (BOE) board to a PC that has a D-Link® DBT-

120 Bluetooth USB Adapter.

To perform this exercise, as documented, you will need a D-Link DBT-120, a Board of

Education board, and an eb500 module. If you are using any of the other supported Parallax

boards, you may need to make adjustments to this exercise.

On the PC, the DBT-120 Bluetooth Software associates a COM port for establishing a

connection from the PC to a remote Bluetooth device and a separate COM port for

connections that are established from a remote Bluetooth device to the PC. This exercise

demonstrates establishing a connection from a remote eb500 to the PC. When a remote

Bluetooth device establishes a connection with the PC, the connection is established with

the DBT-120 Bluetooth USB Adapter software running on the PC. To gain access to the

data, an application, such as HyperTerminal, must open the COM port associated with the

connection established from the remote device. In the Communications section, we will step

through this process.

The D-Link DBT-120 Bluetooth USB Adapter software must be fully installed prior to

establishing a connection. The PC settings shown in this exercise are based upon the

software provided with the D-Link DBT-120 Bluetooth USB Adapter.

Step 1: DBT-120 Setup

In this step we will attach the DBT-120 USB Adapter to the PC. The software for the

DBT-120 should already be setup.

1. Connect the DBT-120 to an available USB port on the PC, following the instructions

provided with the DBT-120 Bluetooth USB Adapter.

Step 2: Obtain the Bluetooth Address of the PC

In this step we will obtain the Bluetooth address of the DBT-120 USB Adapter

attached to the PC.

1. Open My Bluetooth Places by double-clicking on the desktop icon.

This will display the My Bluetooth Places dialog.

2. Click View or modify configuration.

This will display the Bluetooth Configuration dialog.

3. Select the Hardware tab and note the Device Address shown in the Device

Properties section of the dialog.

The device address will be used in the BASIC Stamp application developed in the

next step.

EmbeddedBlue 500 33

4. Click Cancel

This will close the Bluetooth Configuration dialog.

Step 3: Write a BASIC Stamp Application to Connect to the PC

In this step we will attach an eb500 module to the Board of Education board and

develop a BASIC Stamp application to establish a connection with the PC.

1. Insert an eb500 module into the AppMod connector of the Board of Education

board; assuring that Pin 1 of the eb500 module is inserted into the VSS pin of the

AppMod header.

2. Connect the Board of Education board serial port to the PC.

3. Open the BASIC Stamp Editor.

4. Enter the following program code into the editor, replacing the Bluetooth device

address with the device address of the PC, which we obtained from the Hardware

tab of the Device Properties section of the Bluetooth Configuration dialog in the

previous step.

‘{$STAMP BS2}

‘I/O Line 5 provides the connection status

INPUT 5

‘Wait for the eb500 radio to be ready

PAUSE 1000

‘Connect to the remote device

SEROUT 1,84,[“con 00:80:C8:35:2C:B8”,CR]

SERIN 0,84,[WAIT(“ACK”,CR)]

WaitForConnection:

IF in5 = 0 THEN WaitForConnection

DEBUG “Connected”,CR

‘Wait for 20 seconds

PAUSE 20000

‘I/O Line 6 allows us to switch to Command Mode

OUTPUT 6

‘Switch to Command Mode

LOW 6

SERIN 0,84,[WAIT(CR,”>”)]

‘Disconnect from the remote device

SEROUT 1,84,[“dis”,CR]

34 User Manual

SERIN 0,84,[WAIT(CR,”>”)]

DEBUG “Disconnected”,CR

The BASIC Stamp application establishes a connection with the remote Bluetooth

device, waits twenty seconds, switches back to command mode and then

disconnects from the remote device.

5. On the File menu, click Save As.

6. In the File name box, enter a file name to which to save the program just created.

For example, ConnectPC.bs2.

7. Click Save.

Step 4: Connect the eb500 on the Board of Education to the PC

1. Apply power to the Board of Education board.

Power can be applied by attaching a 9 Volt battery, or the AC-Adapter provided by

Parallax.

2. On the Run menu, click Run.

The Connection Status LED (Figure 1) on the eb500 module will turn on when a

connection is established. Additionally, on the My Bluetooth Places window, in the

Additional Information column, the text “Connected” will be shown while a connection

exists between the eb500 and the PC.

EmbeddedBlue 500 35

Connecting an iPAQ h1940 to a Board of Education

In this exercise we will step through the process of establishing a connection from an iPAQ

h1940, which has integrated Bluetooth, to an eb500 module inserted into a Board of

Education board.

To perform this exercise, as documented, you will need an iPAQ h1940, a Board of

Education board, and an eb500 module. If you are using a different model of Pocket PC,

with integrated Bluetooth, or any of the other supported Parallax boards, you may need to

make adjustments to this exercise.

Step 1: Board of Education – eb500 Setup

In this step we will attach an eb500 module to the Board of Education board and

apply power to the device.

1. Insert an eb500 module into the AppMod connector of the Board of Education

board; assuring that Pin 1 of the eb500 module is inserted into the VSS pin of the

AppMod header.

2. Apply power to the Board of Education board.

Power can be applied by attaching a 9 Volt battery, or the AC-Adapter provided by

Parallax.

Step 2: iPAQ h1940 Setup

In this step we will setup the iPAQ for connecting to the eb500.

1. Tap the Bluetooth icon in the system tray on the Today screen and select

Bluetooth Manager.

This will display the Bluetooth Manager dialog.

2. On the New menu, select Connect.

This will display the first page of the Connection Wizard.

3. Select Explore a Bluetooth device and tap Next.

This will display the next page of the Connection Wizard.

4. Tap in the Device box.

This will display the Connection Wizard Bluetooth Browser dialog containing a list of

found devices.

5. Tap eb500.

This will display the next page of the Connection Wizard.

6. In the Service Selection box, select A7 Serial Port.

36 User Manual

7. Tap Next.

This will create a shortcut for the service.

8. Tap Finish.

This will display the Bluetooth Manager dialog with the shortcut created in the

window, eb500: A7 Serial Port.

Step 3: Establish a Connection

In this step we will establish a connection from the iPAQ to the Board of Education.

1. Tap-and-hold the shortcut created in the previous step, eb500: A7 Serial Port.

2. Select Connect.

This will establish a connection with the eb500 on the Board of Education board.

The Connection Status LED (Figure 1) on the eb500 module will turn on when a

connection is established.

3. Tap Active Connections.

This will display the Bluetooth Manager Active Connections page showing the status

of your active Bluetooth connections.

4. Tap My Shortcuts.

5. Tap-and-hold the shortcut created in the previous step, eb500: A7 Serial Port.

6. Select Disconnect.

This will close the connection with the eb500 on the Board of Education board. The

Connection Status LED on the eb500 module will turn off.

EmbeddedBlue 500 37

Connecting a Board of Education to an iPAQ h1940

In this exercise we will step through the process of establishing a connection from an eb500

module inserted into a Board of Education board to an iPAQ h1940, which has integrated

Bluetooth.

To perform this exercise, as documented, you will need an iPAQ h1940, a Board of

Education board, and an eb500 module. If you are using a different model of Pocket PC,

with integrated Bluetooth, or any of the other supported Parallax boards, you may need to

make adjustments to this exercise.

Step 1: Obtain the Bluetooth Address of the iPAQ

In this step we will obtain the Bluetooth address of the iPAQ.

1. Tap the Bluetooth icon in the system tray on the Today screen and select

Bluetooth Settings.

This will display the Settings dialog.

2. Tap the Accessibility tab and note the Address shown in the Device Identification

section of the dialog.

The device address will be used in the BASIC Stamp application developed in the

next step.

3. Tap OK to close the dialog.

Step 2: Write a BASIC Stamp Application to Connect to the iPAQ

In this step we will attach an eb500 module to the Board of Education board and

develop a BASIC Stamp application to establish a connection with the iPAQ.

1. Insert an eb500 module into the AppMod connector of the Board of Education

board; assuring that Pin 1 of the eb500 module is inserted into the VSS pin of the

AppMod header.

2. Connect the Board of Education board serial port to the PC.

3. Open the BASIC Stamp Editor.

4. Enter the following program code into the editor, replacing the Bluetooth device

address with the device address of the iPAQ, which we obtained from the iPAQ in

the previous step.

‘{$STAMP BS2}

‘I/O Line 5 provides the connection status

INPUT 5

‘Wait for the eb500 radio to be ready

38 User Manual

PAUSE 1000

‘Connect to the remote device

SEROUT 1,84,[“con 00:04:3E:62:FE:01”,CR]

SERIN 0,84,[WAIT(“ACK”,CR)]

WaitForConnection:

IF in5 = 0 THEN WaitForConnection

DEBUG “Connected”,CR

‘Wait for 20 seconds

PAUSE 20000

‘If there is no connection just exit

IF in5 = 0 THEN Exit

‘I/O Line 6 allows us to switch to Command Mode

OUTPUT 6

‘Switch to Command Mode

LOW 6

SERIN 0,84,[WAIT(CR,”>”)]

‘Disconnect from the remote device

SEROUT 1,84,[“dis”,CR]

SERIN 0,84,[WAIT(CR,”>”)]

Exit:

DEBUG “Disconnected”,CR

The BASIC Stamp application establishes a connection with the remote Bluetooth

device, waits twenty seconds, switches back to command mode and then

disconnects from the remote device.

On the h1940 model of the iPAQ, the Bluetooth software closes the connection after

a short period of time if there is not an application running on the iPAQ to receive the

data over the connection. Therefore, after the twenty second wait, the BASIC Stamp

application checks if there is still a valid connection before switching to Command

Mode. If there is no connection, the eb500 is already in Command Mode.

5. On the File menu, click Save As.

6. In the File name box, enter a file name to which to save the program just created.

For example, ConnectPPC.bs2.

7. Click Save.

EmbeddedBlue 500 39

Step 3: Establish a Connection

In this step we will establish a connection from the Board of Education to the iPAQ.

1. Turn on the iPAQ.

2. Tap the Bluetooth icon and select Bluetooth Manager.

This will display the Bluetooth Manager dialog.

3. Tap the Active Connections tab.

4. Apply power to the Board of Education board.

Power can be applied by attaching a 9 Volt battery, or the AC-Adapter provided by

Parallax.

5. Using the Basic Stamp Editor, on the Run menu, click Run.

Depending on your current iPAQ Bluetooth configuration, the Authorization

Requested Dialog may appear (Figure 9). If this dialog appears, tap Accept to accept

the connection. The Connection Status LED (Figure 1) on the eb500 module will turn

on when a connection is established. On the iPAQ the connection will be shown in

the Incoming Connections section of the Active Connections tab on the Bluetooth

Active Connections dialog.

Figure 9: iPAQ Bluetooth Authorization Request Dialog

40 User Manual

Communications

This section contains a number of exercises that demonstrate methods of communicating

over a Bluetooth wireless connection with the eb500. The scenarios described are not

meant to form an exhaustive list, but rather illustrate a number of more common and useful

configurations. All source code shown in these exercises are available in electronic form on

the accompanying CD, in the Samples folder, using the filename used in this manual.

Communicating between Two eb500 Modules

In this exercise we will step through the process of communicating between two eb500

modules, one inserted into a Boe-Bot robot and the other inserted into a SumoBot robot. We

will program the SumoBot to use its infrared sensors to follow an object and then transmit its

movements to the Boe-Bot. The Boe-Bot will use the received information to mimic the

movements of the SumoBot.

To perform this exercise, as documented, you will need a Boe-Bot, a SumoBot, and two

eb500 modules. If you are using any of the other supported Parallax robots, you may need

to make adjustments to this exercise.

Step 1: Create a Monkey-See Application for the SumoBot

In this step we will create a BASIC Stamp application that will use the infrared

sensors of the SumoBot to follow an object and transmit its movements to a remote

eb500.

1. Open the BASIC Stamp Editor.

2. Enter the following program code into the editor, replacing the Bluetooth device

address with the device address of the eb500 inserted into the Boe-Bot robot.

'{$STAMP BS2}

‘I/O Line 5 provides the connection status

INPUT 5

'-----[I/O Definitions]---------------------------------------

EmbeddedBlue 500 41

LMotor CON 13

RMotor CON 12

LfIrOut CON 4

LfIrIn VAR In11

RtIrOut CON 15

RtIrIn VAR In14

'-----[Constants]----------------------------------------------

LFwdFast CON 1000

LRevFast CON 500

RFwdFast CON 500

RRevFast CON 1000

'-----[Variables]-----------------------------------------------

irBits VAR NIB

irLeft VAR irBits.Bit1

irRight VAR irBits.Bit0

lastIr VAR NIB

bBuffer VAR BYTE(4)

bErrorCode VAR BYTE

'-----[Initialization]------------------------------------------

'Wait for the eb500 radio to be ready

PAUSE 1000

Connect:

'Connect to Monkey-Do

SEROUT 1,84,["con 00:0C:84:00:07:D7",CR]

SERIN 0,84,[WAIT(“ACK”,CR)]

‘Either an Err #<CR> or a ">" will be received

SERIN 0,84,[STR bBuffer\6\”>”]

IF bBuffer(0) = “E” THEN ErrorCode

WaitForConnection:

IF in5 = 0 THEN WaitForConnection

42 User Manual

'-----[Main Code]-----------------------------------------------

Main:

'Verify the connection is still up before each loop

IF in5 = 0 THEN Connect

GOSUB Read_IR_Sensors

BRANCH irBits,[Hold, Turn_Right, Turn_left, Move_Fwd]

Move_Fwd:

SEROUT 1,84,["3"]

PULSOUT LMotor,LFwdFast

PULSOUT RMotor,RFwdFast

GOTO Main

Turn_Right:

SEROUT 1,84,["1"]

PULSOUT LMotor,LFwdFast

PULSOUT RMotor,RRevFast

GOTO Main

Turn_Left:

SEROUT 1,84,["2"]

PULSOUT LMotor,LRevFast

PULSOUT RMotor,RFwdFast

GOTO Main

Hold:

GOTO Main

'-----[Subroutines]---------------------------------------------

Read_IR_Sensors:

FREQOUT LfIrOut,1,38500

irLeft = ~LfIrIn

FREQOUT RtIrOut,1,38500

irRight = ~RtIrIn

EmbeddedBlue 500 43

RETURN

BadCommand:

DEBUG "A bad command was received."

END

ErrorCode:

bErrorCode = bBuffer(4)

DEBUG "An error was received: ",STR bErrorCode,CR

END

3. On the File menu, click Save As.

4. In the File name box, enter a file name to which to save the program just created.

For example, MonkeySee.bs2.

5. Click Save.

Step 2: Create a Monkey-Do Application for the Boe-Bot

In this step we will create a BASIC Stamp application that will receive information

from the remote SumoBot and perform movements based on that information.

1. On the File menu, click New.

This will create a new project window within the BASIC Stamp Editor.

2. Enter the following program code into the editor.

'{$STAMP BS2}

'-----[I/O Definitions]-----------------------------------------

LMotor CON 15

RMotor CON 14

'-----[Constants]-----------------------------------------------

LFwdFast CON 1000

LRevFast CON 500

RFwdFast CON 500

RRevFast CON 1000

'-----[Variables]-----------------------------------------------

CmdData VAR BYTE

44 User Manual

'-----[Initialization]------------------------------------------

Initialize:

'Wait for the eb500 radio to be ready

PAUSE 1000

'Set the initial state to hold

CmdData = 3

'-----[Main Code]-----------------------------------------------

Main:

'Wait for a command

SERIN 0,84,[DEC1 CmdData]

'Process the command

BRANCH CmdData,[Hold, Turn_Right, Turn_left, Move_Fwd]

'If the command was invalid just loop again

GOTO Main

Move_Fwd:

PULSOUT LMotor,LFwdFast

PULSOUT RMotor,RFwdFast

GOTO Main

Turn_Right:

PULSOUT LMotor,LFwdFast

PULSOUT RMotor,RRevFast

GOTO Main

Turn_Left:

PULSOUT LMotor,LRevFast

PULSOUT RMotor,RFwdFast

GOTO Main

Hold:

EmbeddedBlue 500 45

GOTO Main

3. On the File menu, click Save As.

4. In the File name box, enter a file name to which to save the program just created.

For example, MonkeyDo.bs2.

5. Click Save.

Step 3: Download the Applications to the Robots

In this step we will download the applications we just created to the respective

robots.

1. Click the MonkeySee.bs2 tab in the BASIC Stamp Editor.

2. Connect the SumoBoard board serial port to the PC.

3. Apply power to the SumoBoard board.

4. On the Run menu, click Run.

5. On the Debug Terminal #1 dialog click Close.

6. Disconnect the power from the SumoBoard board.

7. Disconnect the SumoBoard board serial port from the PC.

8. Click the MonkeyDo.bs2 tab in the BASIC Stamp Editor.

9. Connect the Board of Education board serial port to the PC.

10. Apply power to the Board of Education board.

11. On the Run menu, click Run.

12. Disconnect the Board of Education board serial port from the PC.

Step 4: Run the Monkey-See / Monkey-Do Applications

In this step we will run the Monkey-See / Monkey-Do applications.

1. Apply power to the SumoBoard board.

2. Make the Boe-Bot robot mimic the movements of the SumoBot by putting your

hand in front of the SumoBot IR sensors.

As you move your hand left, right and forward, the SumoBot will follow your hand

and the Boe-Bot will mimic the same movements.

46 User Manual

Communicating between a PC with an eb600 and a BOE

In this exercise we will step through the process of communicating between an eb500

module inserted into a Board of Education (BOE) board and a PC that has an eb600 PC

Adapter.

To perform this exercise, as documented, you will need to have two serial ports available on

your PC, an eb600 PC Adapter, a Board of Education board, and two eb500 moduels. One

serial port will be used to connect the PC to the Board of Education serial port. The other

serial port will be used to connect to the eb600 PC Adapter. If you are using any of the other

supported Parallax boards, you may need to make adjustments to this exercise.

Step 1: Transmit Data from the PC to the BASIC Stamp

In this step we will create a BASIC Stamp application to read data from the eb500

and display the data in the BASIC Stamp Editor Debug window. We will then

download and run the application.

1. Connect the Board of Education board serial port to the PC.

2. Open the BASIC Stamp Editor.

3. Enter the following program code into the editor.

‘{$STAMP BS2}

bData VAR BYTE

‘Wait for the eb500 radio to be ready

PAUSE 1000

Main:

SERIN 0,84,[STR bData\1]

DEBUG STR bData\1

GOTO Main

The application waits for an individual byte of data to arrive and then displays the

byte in the debug window and then repeats this process.

4. On the File menu, click Save As.

5. In the File name box, enter a file name to which to save the program just created.

For example, Receive.bs2.

6. Click Save.

7. Apply power to the Board of Education board.

8. On the Run menu, click Run.

EmbeddedBlue 500 47

9. Establish a connection from the PC to the Board of Education.

Please see the section titled Connecting a PC with an eb600 to a Board of Education

for information on establishing the connection.

10. Using HyperTerminal, type a series of characters.

These characters will be transmitted over the wireless link, read by the BASIC Stamp

application, and then displayed in the debug window (Figure 10).

Figure 10: HyperTerminal Input and Debug Output

Step 2: Transmit Data from the BASIC Stamp to the PC

In this step we will create a BASIC Stamp application to send data out the eb500 to

the PC where we will use HyperTerminal to display the data received by the eb500

module attached to the eb600 on the PC.

1. Reset the eb500 attached to the eb600 PC Adapter to place the eb500 into

command mode.

To reset the eb500 attached to the eb600 PC Adapter, disconnect the power, wait a

couple of seconds, and then reconnect the power.

2. Reset the eb500 attached to the Board of Education board to place the eb500 into

command mode.

To reset the eb500 attached to the Board of Education board, disconnect the power,

wait a couple of seconds, and then reconnect the power. The Reset push button on

the Board of Education board will NOT reset the eb500.

48 User Manual

3. Using HyperTerminal, acquire the device address of the eb500 connected to the

eb600 PC Adapter by using the eb500 GET ADDR serial command.

Please note the device address as it will be used in the BASIC Stamp application

developed in the following actions.

By issuing the GET ADDR command, the eb500 connected to the eb600 will return

its own device address.

To obtain the device address, type get addr at the “>” prompt and press the return

key.

Example:

>get addr

ACK

00:0C:84:00:07:D8

4. Using the BASIC Stamp Editor, on the File menu, click New.

This will create a new project window within the BASIC Stamp Editor.

5. Enter the following program code into the editor, replacing the device address with

the device address obtained from the GET ADDR command issued above.

‘{$STAMP BS2}

nCount VAR BYTE

‘I/O Line 5 provides the connection status

INPUT 5

‘Wait for the eb500 radio to be ready

PAUSE 1000

‘Connect to the remote device

SEROUT 1,84,[“con 00:0C:84:00:07:D8”,CR]

SERIN 0,84,[WAIT(“ACK”,CR)]

WaitForConnection:

IF in5 = 0 THEN WaitForConnection

DEBUG “Connected”,CR

FOR nCount = 1 to 10

SEROUT 1,84,[“Hello World”,CR] ‘sending data

PAUSE 1000 ‘wait for 1 second

‘I/O Line 6 allows us to switch to command mode.

EmbeddedBlue 500 49

OUTPUT 6

‘Switch to Command Mode

LOW 6

SERIN 0,84,[WAIT(CR,”>”)]

‘Disconnect from the remote device

SEROUT 1,84,[“dis”,CR]

SERIN 0,84,[wait(CR,”>”)]

DEBUG “Disconnected”,CR

The application establishes a connection with the remote eb500 device, transmits

“Hello World” ten times, switches back to command mode and then disconnects from

the remote device.

The first call to SEROUT is used when the eb500 is in command mode and instructs

the eb500 to establish a connection with the device specified. Once a connection is

established the eb500 is in data mode, which causes further calls to SEROUT to be

sent to the remote device.

6. On the File menu, click Save As.

This will display the Save As dialog.

7. In the File name box, enter a file name to which to save the program just created.

For example, HelloWorld.bs2.

8. Click Save.

9. On the Run menu, click Run.

This will display the Download Program dialog while downloading the program to the

BASIC Stamp. After the download is complete the BASIC Stamp application will

transmit “Hello World” over the wireless link, and HyperTerminal will display the

received data (Figure 11).

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Figure 11: HyperTerminal Output - Hello World

EmbeddedBlue 500 51

Communicating between a PC with a DBT-120 and a BOE

In this exercise we will step through the process of communicating between a PC that has a

D-Link® DBT-120 Bluetooth USP Adapter and an eb500 module inserted into a Board of

Education board.

To perform this exercise, as documented, you will need a D-Link DBT-120, a Board of

Education board, and an eb500 module. If you are using any of the other supported Parallax

boards, you may need to make adjustments to this exercise.

On the PC, the DBT-120 Bluetooth Software associates a COM port for establishing a

connection from the PC to a remote Bluetooth device and a separate COM port for

connections that are established from a remote Bluetooth device to the PC. Step 1 of this

exercise demonstrates establishing a connection from the PC to the eb500 on the Board of

Education and then transmitting data over the connection. Step 2 of this exercise

demonstrates establishing a connection from the eb500 on the Board of Education to the PC

and then transmitting data over the connection.

The D-Link DBT-120 Bluetooth USB Adapter software must be fully installed prior to

establishing a connection. The PC settings shown in this exercise are based upon the

software provided with the D-Link DBT-120 Bluetooth USB Adapter.

Step 1: Transmit Data from the PC to the BASIC Stamp

In this step we will create a BASIC Stamp application to read data from the eb500

and display the data in the BASIC Stamp Editor Debug window. We will then

download and run the application.

1. Connect the Board of Education board serial port to the PC.

2. Open the BASIC Stamp Editor.

3. Enter the following program code into the editor.

‘{$STAMP BS2}

bData VAR BYTE

‘Wait for the eb500 radio to be ready

PAUSE 1000

Main:

SERIN 0,84,[STR bData\1]

DEBUG STR bData\1

GOTO Main

The application waits for an individual byte of data to arrive and then displays the

byte in the debug window and then repeats this process.

4. On the File menu, click Save As.

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5. In the File name box, enter a file name to which to save the program just created.

For example, Receive.bs2.

6. Click Save.

7. Apply power to the Board of Education board.

8. On the Run menu, click Run.

This will display the Download Progress dialog while downloading the program to the

BASIC Stamp. After the download is complete, the Debug Terminal #1 dialog will be

shown.

9. Establish a connection from the PC to the Board of Education.

Please see the section titled Connecting a PC with a DBT-120 to a BOE for

information on establishing a connection.

10. Using HyperTerminal, type a series of characters.

These characters will be transmitted over the wireless link, read by the BASIC Stamp

application, and then displayed in the debug window.

Step 2: Transmit Data from the BASIC Stamp to the PC

In this step we will create a BASIC Stamp application to send data out the eb500 to

the PC where we will use HyperTerminal to display the data received by the DBT-

120 Bluetooth USB Adapter.

1. Reset the eb500 attached to the Board of Education board to place the eb500 into

command mode.

To reset the eb500 attached to the Board of Education board, disconnect the power,

wait a couple of seconds, and then reconnect the power. The Reset push button on

the Board of Education board will NOT reset the eb500.

2. Close HyperTerminal.

3. Close the BASIC Stamp Editor Debug dialog.

4. Open My Bluetooth Places by double-clicking on the desktop icon.

This will display the My Bluetooth Places dialog.

5. Click View or modify configuration.

This will display the Bluetooth Configuration dialog.

EmbeddedBlue 500 53

6. Select the Local Services tab and note the COM Port for the Bluetooth Serial Port

service. You may have to scroll to the right to see the COM Port column of the table.

This COM port is the serial communications port that the DBT-120 Bluetooth

software has associated for connections that are established from a remote

Bluetooth device. This COM port can be used to communicate with the eb500 from

applications, such as HyperTerminal, when connections are established from remote

Bluetooth devices to the PC.

7. Select the Hardware tab and note the Device Address shown in the Device

Properties section of the dialog.

The device address will be used in the BASIC Stamp application developed in later

actions.

8. On the Bluetooth Configuration dialog, click Cancel.

This will close the Bluetooth Configuration dialog.

9. Close the My Bluetooth Places window.

10. Open HyperTerminal.

This will display the Connection Description dialog.

11. In the Name box, type the name of your connection. For example, EB500-USB-RX.

12. Click OK.

This will display the Connect To dialog.

13. In the Connect using dropdown, select the serial port to which the DBT-120

Bluetooth software associated with the connection from the eb500 on the Board of

Education board to the PC.

This is the COM port that we previously noted as being the COM port that is used to

communicate with the eb500 when connections are established from remote

Bluetooth devices to the PC.

14. Click OK.

This will display the Properties dialog.

15. In the Bits per second dropdown, select 9600.

16. In the Data bits dropdown, select 8.

17. In the Parity dropdown, select None.

18. In the Stop bits dropdown, select 1.

19. In the Flow control dropdown, select None.

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20. Click OK.

This will establish a connection with the DBT-120 Bluetooth USB Adapter software.

This does NOT establish a connection with the remote Bluetooth device. The remote

Bluetooth device establishes a connection with the DBT-120 Bluetooth USB Adapter

software and applications, such as HyperTerminal, establish a connection to the

DBT-120 Bluetooth USB Adapter software using the COM port that is used when

connections are established from remote Bluetooth devices to the PC to gain access

to the data being transmitted from the remote device.

21. On the Call menu, click Disconnect.

This will disconnect the connection just established, so that we can modify the

connection properties in the following actions.

22. On the File menu, click Properties.

This will display the Properties dialog.

23. On the Settings tab, click ASCII Setup.

This will display the ASCII Setup dialog.

24. Check the Send line ends with line feeds checkbox.

25. Check the Echo typed characters locally checkbox.

26. Check the Append line feeds to incoming line ends checkbox.

27. Check the Wrap lines that exceed terminal width checkbox.

28. Click OK.

This will return to the Properties dialog.

29. Click OK.

30. On the Call menu, click Call.

This will establish a connection with the DBT-120 Bluetooth USB Adapter Software.

31. Using the BASIC Stamp Editor, on the File menu, click New.

This will create a new project window within the BASCIC Stamp Editor.

32. Enter the following program code into the editor, replacing the device Bluetooth

address with the device address obtained from the Hardware tab of the Device

Properties section of the Bluetooth Configuration dialog on the PC.

‘{$STAMP BS2}

nCount VAR BYTE

‘I/O Line 5 provides the connection status

INPUT 5

EmbeddedBlue 500 55

‘Wait for the eb500 radio to be ready

PAUSE 1000

‘Connect to the remote device

SEROUT 1,84,[“con 00:80:C8:35:2C:B8”,CR]

SERIN 0,84,[WAIT(“ACK”,CR)]

WaitForConnection:

IF in5 = 0 THEN WaitForConnection

DEBUG “Connected”,CR

FOR nCount = 1 to 10

SEROUT 1,84,[“Hello World”,13] ‘sending data

PAUSE 1000 ‘wait for 1 second

‘I/O Line 6 allows us to switch to command mode

OUTPUT 6

‘Switch to Command Mode

LOW 6

SERIN 0,84,[WAIT(CR,”>”)]

‘Disconnect from the remote device

SEROUT 1,84,[“dis”,CR]

SERIN 0,84,[WAIT(CR, “>”)]

DEBUG “Disconnected”,CR

The BASIC Stamp application establishes a connection with the remote eb500

device, waits for the connection to be established, then transmits “Hello World” ten

times, switches back to command mode, and then disconnects from the remote

device.

The first call to SEROUT is used when the eb500 is in command mode and instructs

the eb500 to establish a connection with the device specified. Once a connection is

established the eb500 is in data mode, which causes further calls to SEROUT to be

sent to the remote device.

33. On the File menu, click Save As.

This will display the Save As dialog.

34. In the File name box, enter a file name to which to save the program just created.

For example, HelloWorld.bs2.

35. Click Save.

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36. On the Run menu, click Run.

This will display the Download Program dialog while downloading the program to the

BASIC Stamp. After the download is complete the BASIC Stamp application will

transmit “Hello World” over the wireless link, and HyperTerminal will display the

received data (Figure 11).

EmbeddedBlue 500 57

Communicating between an iPAQ h1940 an a BOE

In this exercise we will step through the process of communicating between an iPAQ h1940,

which has integrated Bluetooth, and an eb500 module inserted into a Board of Education

board.

To perform this exercise, as documented, you will need an iPAQ h1940, a Board of

Education board, and an eb500 module. If you are using a different model of Pocket PC,

with integrated Bluetooth, or any of the other supported Parallax boards, you may need to

make adjustments to this exercise.

Step 1: Transmit Data from the iPAQ to the BASIC Stamp

In this step we will create a BASIC Stamp application to read data from the eb500

and display the data in the BASIC Stamp Editor Debug window. We will then

download and run the application. The application for the iPAQ is too verbose to

include in this manual; therefore, the application, along with the source code, is

available on the accompanying CD in the Samples folder. To modify the Pocket PC

application you will need eMbedded Visual C++ 4.0 with Service Pack 2 and the SDK

for Windows Mobile™ 2003-based Pocket PCs.

1. Connect the Board of Education board serial port to the PC.

2. Open the BASIC Stamp Editor.

3. Enter the following program code into the editor.

‘{$STAMP BS2}

szData VAR BYTE(20)

‘Wait for the eb500 radio to be ready

PAUSE 1000

Main:

SERIN 0,84,[STR szData\20\CR]

DEBUG STR szData,CR

GOTO Main

4. On the File menu, click Save As.

5. In the File name box, enter a file name to which to save the program just created.

For example, ReceivePPC.bs2.

6. Click Save.

7. Apply power to the Board of Education board.

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8. On the Run menu, click Run.

This will display the Download Progress dialog while downloading the program to the

BASIC Stamp. After the download is complete, the Debug Terminal #1 dialog will be

shown.

9. On the iPAQ, tap the Bluetooth icon in the system tray on the Today screen and

select Bluetooth Settings.

This will display the Settings dialog.

10. Scroll to the right, tap the Serial Port tab and note the Outbound COM port.

The Outbound COM port will be used in the iPAQ application later in this step.

11. Download the Hello World Pocket PC application to the iPAQ.

12. Run the Hello World Application (Figure 12).

Figure 12: Hello World Pocket PC Application

13. In the Bluetooth Outbound COM Port dropdown, select the COM port number that

matches the Bluetooth Outbound COM Port, which we discovered in a previous

action.

14. Tap the Connect button.

This will display the Bluetooth Browser dialog (Figure 13).

EmbeddedBlue 500 59

15. Tap eb500 in the Bluetooth Browser dialog to establish a connection with the eb500

on the Board of Education.

If there are no devices shown in the Bluetooth Browser dialog, tap the refresh icon to

search for your Bluetooth device.

Figure 13: iPAQ Bluetooth Brower Dialog

16. Tap the Send Hello World button.

This will transmit the ASCII text “Hello World” over the wireless link. The BASIC

Stamp application will then receive these characters and display them in the BASIC

Stamp Editor Debug window.

17. Tap the Disconnect button to close the Bluetooth connection.

Step 2: Transmit Data from the BASIC Stamp to the iPAQ

In this step we will create a BASIC Stamp application to send data out the eb500 to

the iPAQ. We will then download and run the application. The application for the

iPAQ is too verbose to include in this manual; therefore, the application, along with

the source code, is available on the accompanying CD in the Samples folder. To

modify the Pocket PC application you will need eMbedded Visual C++ 4.0 with

Service Pack 2 and the SDK for Windows Mobile™ 2003-based Pocket PCs.

1. Using the BASIC Stamp Editor, on the File menu, click New.

This will create a new project window within the BASIC Stamp Editor.

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2. Enter the following program code into the editor, replacing the device address with

the device address obtained from the iPAQ.

‘{$STAMP BS2}

nCount VAR BYTE

‘I/O Line 5 provides the connection status

INPUT 5

‘Wait for the eb500 radio to be ready

PAUSE 1000

‘Connect to the remote device

SEROUT 1,84,[“con 00:04:3E:62:FE:01”,CR]

SERIN 0,84,[WAIT(“ACK”,CR)]

WaitForConnection:

IF in5 = 0 THEN WaitForConnection

DEBUG “Connected”,CR

FOR nCount = 1 to 10

SEROUT 1,84,[“Hello World”,CR] ‘sending data

PAUSE 1000 ‘wait for 1 second

‘I/O Line 6 allows us to switch to Command Mode

OUTPUT 6

‘Switch to Command Mode

LOW 6

SERIN 0,84,[WAIT(CR,”>”)]

‘Disconnect from the remote device

SEROUT 1,84,[“dis”,CR]

SERIN 0,84,[WAIT(CR,”>”)]

DEBUG “Disconnected”,CR

The BASIC Stamp application establishes a connection with the iPAQ, transmits

“Hello World” ten times, switches back to command mode, and then disconnects

from the remote device.

The first call to SEROUT is used when the eb500 is in command mode and instructs

the eb500 to establish a connection with the device specified. Once a connection is

established the eb500 is in data mode, which causes further calls to SEROUT to be

sent to the remote device.

3. On the File menu, click Save As.

EmbeddedBlue 500 61

4. In the File name box, enter a file name to which to save the program just created.

For Example, HelloWorld.bs2.

5. Click Save.

6. On the iPAQ, tap the Bluetooth icon in the system tray on the Today screen and

select Bluetooth Settings.

This will display the Settings dialog.

7. Scroll to the right, tap the Serial Port tab and note the Inbound COM port.

The Inbound COM port will be used in the iPAQ application later in this step.

8. Download the RXEB500 Pocket PC application to the iPAQ.

9. Run the RXEB500 Application (Figure 14).

Figure 14: RXEB500 Pocket PC Application

10. In the Bluetooth Inbound COM Port dropdown, select the COM port number that

matches the Bluetooth Inbound COM Port, which we discovered in a previous action.

11. Tap the Connect button.

12. Apply power to the Board of Education board.

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13. Using the BASIC Stamp Editor, on the Run menu, click Run.

This will display the Download Progress dialog while downloading the program to the

BASIC Stamp. After the download is complete the BASIC Stamp application will

establish a connection with the iPAQ. Depending on your current iPAQ Bluetooth

configuration, the Authorization Request Dialog may appear (Figure 9). If this dialog

appears, tap Accept to accept the connection. Once the connection is established,

the BASIC Stamp application will transmit “Hello World” over the wireless link, and

the iPAQ Pocket PC application will display the received data.

14. On the iPAQ, tap the Disconnect button to close the connection.

EmbeddedBlue 500 63

eb500 Commands

The eb500 command set is comprised of visible ASCII characters. Therefore, a command

can be issued from a terminal application, such as HyperTerminal, or directly from a custom

application program, written in a programming language such as C++ or Visual Basic,

running on a PC, using the eb600 PC Adapter. From a BASIC Stamp application, these

commands can be issued by using the PBASIC™ SERIN and SEROUT commands.

Command Basics

Commands may only be sent to the eb500 when the module is in Command Mode. White

spaces are used to separate parameters of the command and a carriage-return is used to

mark the end of the command. Upon receipt of a command the eb500 begins to parse the

parameters. If the syntax of the command is correct the eb500 returns an ACK string, not

the ACK character (0x06); otherwise, a NAK string is returned. Following the ACK or NAK

string is a carriage-return (0x0D) character. If an error occurs while processing the

command an error string is returned followed by a carriage-return followed by the prompt (>)

character. If the command executed successfully the eb500 will issue the prompt (>)

character. Please see the eb500 Error Codes section for a description of the error codes.

The following example shows the basic structure of a command. A prompt (>) is issued by

the eb500. A command followed by a carriage-return is sent to the eb500. The eb500

responds with either an ACK or NAK string followed by a carriage-return. If an error occurs,

the eb500 responds with an Err string followed by a space followed by an ASCII string

numeric value followed by a carriage-return. A prompt (>) is then issued by the eb500.

>command<CR>

ACK | NAK<CR>

Err number<CR>

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BASIC Stamp Application eb500 Command Error Handling

The BASIC Stamp has a software based UART; meaning it does not buffer incoming serial

data. Therefore, the checking of errors from the issuing of an eb500 command must be

performed immediately after the issuing of the command; otherwise, the data may be lost.

Below is a sample of BASIC Stamp code that issues an eb500 Connect command, waits for

the ACK<CR> response from the eb500, then waits for the error string or the prompt (>) to

be returned from the eb500. It then checks the first bye of the data returned to determine if

an error has occurred. If an error has occurred, the code jumps to the error handler code,

where an error string along with the error number is shown in the debug window of the Basic

Stamp Editor.

'Connect to remote Bluetooth device

SEROUT 1,84,["con 00:0C:84:00:07:D8",CR]

SERIN 0,84,[WAIT(“ACK”,CR)]

‘Either an Err #<CR> or a ">" will be received

SERIN 0,84,[STR bBuffer\6\”>”]

IF bBuffer(0) = “E” THEN ErrorCode

… Progam Logic …

ErrorCode:

bErrorCode = bBuffer(4)

DEBUG “Error: “,STR bErrorCode,CR

END

EmbeddedBlue 500 65

Connect

The connect command establishes a connection to another Bluetooth device. The

connect command may be canceled before a connection is established by issuing a

carriage-return to the eb500. The connect command may be canceled before the

timeout is reached by issuing a carriage-return to the eb500. It can take up to four

seconds to cancel the connection request.

Syntax

con address [timeout]<CR>

Parameters

address The Bluetooth address of the remote device. The Bluetooth

device address is the 48-bit IEEE address which is unique for

each Bluetooth unit. The format of a Bluetooth device address

is a series of six hexadecimal byte values separated by

colons, i.e., 00:0C:84:00:07:D7.

timeout An optional parameter used to abort the connection request

after the specified number of seconds. The maximum value is

120 seconds.

Example

>con 00:0C:84:00:07:D7<CR>

ACK<CR>

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Disconnect

The disconnect command closes the connection with the remote Bluetooth device.

Syntax

dis<CR>

Example

>dis<CR>

ACK<CR>

EmbeddedBlue 500 67

Get Address

The get address command returns the address of the local eb500 module.

Syntax

get addr<CR>

Returns

The unique address of the local eb500 module used to identify the module

when making connections. In Bluetooth terminology this is the Bluetooth

Device Address.

Example

>get addr<CR>

ACK<CR>

00:0C:84:00:07:D7<CR>

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Get Connectable Mode

The get connectable mode command returns the connectable mode setting of the

local eb500 module.

Syntax

get con<CR>

Returns

The current connectable mode setting of the local eb500 module. In

Bluetooth terminology, the returned value reflects the current setting for page

scan.

on The eb500 will accept connections.

off The eb500 will NOT accept connections.

Example

>get con<CR>

ACK<CR>

on<CR>

EmbeddedBlue 500 69

Get Discoverable Mode

The get discoverable mode command returns the discoverable mode setting of the

local eb500 module.

Syntax

get dis<CR>

Returns

The current discoverable mode setting of the local eb500 module. In

Bluetooth terminology, the returned value reflects the current setting for

inquiry scan.

on The eb500 is visible to other devices.

off The eb500 is NOT visible to other devices.

Example

>get dis<CR>

ACK<CR>

on<CR>

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Get Escape Character

The get escape character command returns the current character used in the Switch

to Command Mode command to instruct the eb500 to leave Data Mode and enter

Command Mode.

Syntax

get escchar<CR>

Example

>get escchar<CR>

ACK<CR>

+<CR>

EmbeddedBlue 500 71

Get Flow Control

The get flow control command returns the flow control setting of the local eb500

module.

Syntax

get flow<CR>

Returns

none The eb500 is configured for no flow control and both the RTS

and CTS lines are configured as high Z inputs. A BASIC

Stamp application is free to use these lines as normal I/O

without regard to the eb500.

hardware The eb500 is configured for hardware flow control and the

RTS line is used for receive flow control and the CTS line is

used for transmit flow control.

Example

>get flow<CR>

ACK<CR>

none<CR>

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Get Link Timeout

The get link timeout command returns the amount of time it takes for the local eb500

module to notice that the connection has been broken, if the remote device

disappears. This timeout also has an effect on how robust the communications link is

to interference. If this value is set very low, the link may be lost if interference picks

up for several seconds, such as when a heavy burst of 802.11 traffic is encountered.

Syntax

get linktimeout<CR>

Example

>get linktimeout<CR>

ACK<CR>

5<CR>

EmbeddedBlue 500 73

Help

The help command returns a listing of the eb500 commands and a brief description

of each command.

Syntax

hlp [command]<CR>

Parameters

command The eb500 command name (con, dis, get, lst, set and ver) for

which to return help.

Examples

>hlp<CR>

ACK<CR>

… Help Information …

<CR>

>hlp con<CR>

ACK<CR>

… Help Information on the Connect Command …

<CR>

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List

The list command returns a listing of other Bluetooth devices that are in range and

visible. The list command may be canceled before the timeout is reached by sending

an additional carriage-return to the eb500.

Syntax

lst [timeout]<CR>

Parameters

timeout An optional parameter used to abort the list request after the

specified number of seconds. The default value is 30. The

maximum value is 120 seconds.

Returns

The addresses of the Bluetooth devices that are in range and visible.

Example

>lst<CR>

ACK<CR>

00:0C:84:00:07:D7<CR>

00:80:C8:35:2C:B8<CR>

EmbeddedBlue 500 75

Return to Data Mode

The return to data mode command instructs the eb500 to enter Data Mode when

there is an active connection.

Syntax

ret<CR>

Example

>ret<CR>

ACK<CR>

76 User Manual

Set Baud Rate

The set baud rate command sets the baud rate for communications with the local

eb500 module.

Syntax

set baud rate [*]<CR>

Parameters

rate The baud rate value. Valid baud rates are 9600 (default),

19200, 38400, 57600, 115200, and 230400. Once the baud

rate has been set, applications, such as HyperTerminal, must

also be configured to the same baud rate to continue

communicating with the eb500.

* An optional parameter used to persist the new setting when

the module is powered down.

Example

>set baud 19200<CR>

ACK<CR>

EmbeddedBlue 500 77

Set Connectable Mode

The set connectable mode command provides control over whether the local eb500

module will accept connections from other Bluetooth devices. In Bluetooth

terminology, this command controls the setting for page scan.

Syntax

set con on | off [*]<CR>

Parameters

on Configures the eb500 so that other Bluetooth devices may

establish a connection.

off Configures the eb500 so that other Bluetooth devices may not

establish a connection.

* An optional parameter used to persist the new setting when

the module is powered down.

Example

>set con off<CR>

ACK<CR>

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Set Discoverable Mode

The set discoverable mode command provides control over whether the local eb500

module is visible to other Bluetooth devices. In Bluetooth terminology, this command

controls the setting for inquiry scan.

Syntax

set dis on | off [*]<CR>

Parameters

on Configures the eb500 so that other Bluetooth devices may

detect the presence of this eb500.

off Configures the eb500 so that other Bluetooth devices may not

detect the presence of this eb500.

* An optional parameter used to persist the new setting when

the module is powered down.

Example

>set dis on<CR>

ACK<CR>

EmbeddedBlue 500 79

Set Escape Character

The set escape character command provides control over the character used in the

Switch to Command Mode command to instruct the eb500 to leave Data Mode and

enter Command Mode. The factory default escape character is the plus sign (+).

Syntax

set escchar character [*]<CR>

Parameters

character The character the eb500 should recognize as the escape

character used in the Switch to Command Mode command.

Example

>set escchar & *<CR>

ACK<CR>

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Set Flow Control

The set flow control command provides control over the flow control setting of the

local eb500 module.

Syntax

set flow none | hardware [*] <CR>

Parameters

none Configures the eb500 for no flow control and both the RTS and

CTS lines are configured as high Z inputs. This allows a

BASIC Stamp application to use these lines a normal I/O

without regard to the eb500.

hardware Configures the eb500 for hardware flow control. The RTS line

is used for receive flow control and the CTS line is used for

transmit flow control.

* An optional parameter used to persist the new setting when

the module is powered down.

Example

>set flow none<CR>

ACK<CR>

EmbeddedBlue 500 81

Set Link Timeout

The set link timeout command sets the amount of time it takes for the local eb500

module to notice that the connection has been broken, if the remote device

disappears. This timeout also has an effect on how robust the communications link is

to interference. If this value is set very low, the link may be lost if interference picks

up for several seconds, such as when a heavy burst of 802.11 traffic is encountered.

In Bluetooth terminology, this command controls the setting for link supervisor

timeout.

Syntax

set linktimeout timeout [*]<CR>

Parameters

timeout The time it takes for the eb500 to notice that a connection has

been broken. The default value is 5. The maximum value is 40

seconds.

* An optional parameter used to persist the new setting when

the module is powered down.

Example

>set linktimeout 10<CR>

ACK<CR>

82 User Manual

Switch to Command Mode

The switch to command mode command instructs the eb500 to enter Command

Mode.

Syntax

<2 second pause>esc sequence<2 second pause>

Parameters

esc sequence Three consecutive instances of the escape character. The

factory default escape character is the plus sign (+). A different

escape character can be set in the eb500 by using the Set

Escape Character command.

Example

>con 00:0C:84:00:07:D7<CR>

ACK<CR>

>This text is sent in data mode<CR>

<2 second pause>+++<2 second pause><CR>

>get addr<CR>

ACK<CR>

00:0C:84:00:07:D8<CR>

>ret<CR>

ACK<CR>

>This text is sent in data mode<CR>

<2 second pause>+++<2 second pause><CR>

>dis<CR>

ACK<CR>

Command

Mode

Data Mode

Command

Mode

Data Mode

Command

Mode

EmbeddedBlue 500 83

Version

The version command returns the current firmware version of the local eb500

module.

Syntax

ver [all] <CR>

Parameters

all An optional parameter used to return the build number, model

number, serial number, and manufacturer.

Example

>ver all<CR>

ACK<CR>

Firmware Version: 1.0<CR>

Firmware Build: 189<CR>

Model Number: eb500<CR>

Serial Number: 8<CR>

Manufacturer: A7 Engineering<CR>

84 User Manual

eb500 Error Codes

While using the eb500 you may encounter an error. Below is a listing of all eb500 error

codes with a description of what causes the error to occur.

Error Code Description

1 General connection failure. This error occurs if the remote Bluetooth device

is not configured properly. For example, this error may occur if the remove

device requires Bluetooth security for a serial port connection.

2 Connection attempt failed. This error occurs when attempting to connect

with an invalid Bluetooth address or a device that is not available.

3 Command not valid while active. This error occurs when there is an active

connection and a command is issued that is not valid while connected with

a remote device.

4 Command only valid while active. This error occurs when there is not an

active connection and a command is issued that is only valid while

connected with a remote device.

Table 1: eb500 Error Codes

EmbeddedBlue 500 85

Technical Specifications

Operating Parameters

The operating parameters of the eb500 are shown below in Table 2.

Transmit Power 4dBm (max) class 2 operation

Open Field Range More than 100 meters (328 feet)

Receiver Sensitivity -85dBm

Operating Temperature 0° to 70°C

Supply Power 5 to 12VDC

Current Consumption 115.2kbps data transfer: 35mA

38.4kbps data transfer: 30mA

9.6kbps data transfer: 25mA

connected and idle: 8mA

no connection: 3mA

Interfaces 5V logic level UART or RS232 serial w/ optional eb600

adapter

Baud rate 9.6k – 230.4k

Flow control: RTS/CTS or none

Connector 10x2 AppMod compatible 20 pin header with 0.1” spacing

Antenna Matched internal surface mount

Bluetooth Support Version 1.1 compliant with profiles L2CAP, RFCOMM, SDP,

SPP

Firmware Upgradeable with optional eb600 adapter

Table 2: eb500 Operating Parameters

86 User Manual

Dimensions

The dimensions of the eb500 are shown below in Table 3. Please reference Figure 15 to

locate the referenced dimension on the eb500.

Figure 15: eb500 Dimensions

Dimension inches mm

A 2.7 68

B 2.4 61

C 1.3 33

D 1.6 40.2

E 0.1 2.5

F 0.125 3.2

Table 3: eb500 Dimensions

EmbeddedBlue 500 87

Pinout Diagram

The eb500 module features a 20 pin header with 0.1” spacing for connection to the AppMod

header. Currently, nine of the pins are in use (seven when flow control is set to none). The

other pins are reserved for future use.

1 3 5 7 9 11 13 15 17 19

 z z z z z z z z z

z z z z z z z z z z

2 4 6 8 10 12 14 16 18 20

Figure 16: eb500 Pinout Diagram

Pin Name Pin Type Description

VSS 1, 2 GND Ground

RX 3 TTL output UART data output

TX 4 CMOS/TTL input UART data input

RX Flow (RTS) 5 CMOS/TTL input,

weak pull down

Signaled high to stop module data

transmission

TX Flow (CTS) 6 TTL output Signaled high to stop host data

transmission

7 Reserved Reserved for future use.

Connection

Status 8 TTL output

High when there is an active wireless

connection

Mode Control 9 CMOS/TTL input,

weak pulled down

Low for command mode / High for

data mode

10 - 19 Reserved Reserved for future use.

VIN 20 VCC Module supply, 5 to 12V DC

Table 4: eb500 Pinout Description

88 User Manual

Frequently Asked Questions

Question: My robots appear to be operating normally, but why will my eb500 not

connect?

Answer: Check the battery power to the robot. Although the motors may still run, the

voltage from the batteries may have fallen well below 5V preventing the

eb500 from operating normally.

Question: I changed the baud rate on my eb500 to 115200 and persisted the setting. I

am unable to communicate at that speed from my BASIC Stamp. How can I

reset the value to 9600 baud?

Answer: You can reset the eb500 module to its factory default settings by shorting Pin

8 and Pin 9 and applying power to the eb500 module. Alternatively, if you

have an eb600 PC Adapter you can modify and persist a new setting using

your PC, since the PC is capable of communicating at 115200 baud.

Question: How do I obtain eMbedded Visual C++ 4.0 to develop Pocket PC

applications?

Answer: The eMbedded Visual C++ 4.0 development tool is available from Microsoft.

In addition, you will need eMbedded Visual C++ 4.0 SP2 and the SDK for

Windows Mobile™ 2003-based Pocket PCs. These tools can be downloaded

free of charge from the Microsoft Windows Mobile web site:

http://www.microsoft.com/windowsmobile.

Question: Why is my eb500 not displayed when I try to discover it from my PC or iPAQ?

Answer: Verify that the eb500 module is properly powered. Check the battery power to

the robot. It is likely you will discover the eb500 on the first attempt; however,

because Bluetooth discovery is not deterministic, discovery on the first

attempt is not guaranteed. On the PC or iPAQ, use the refresh option to

search for devices again. Verify that the discoverable mode setting in the

eb500 is set to on.

EmbeddedBlue 500 89

Question: I can discover my eb500, but why am I unable to establish a connection?

Answer: Verify that the connectable mode setting in the eb500 is set to on.

Question: I have Bluetooth Authentication Security enabled on my iPAQ. Why am I

unable to connect my iPAQ to the eb500 on my Board of Education board?

Answer: Currently, the eb500 does not support Bluetooth Authentication Security.

However, you can achieve a measure of security for receiving connections on

your iPAQ by enabling Bluetooth Authorization.

90 User Manual

Contact Information

Parallax provides technical support both through email, an online newsgroup, and by

telephone. It is recommended that you use email as the first line of questioning because

common questions can be answered quickly and in greater detail in this manner

Website: www.parallax.com

Support Email: support@parallax.com

Sales Email: sales@parallax.com

Parallax, Inc

599 Menlo Drive, Suite 100

Rocklin, Ca 95765

888.512.1024 main

916.624.8003 fax

A7 Engineering has created the EmbeddedBlue product line of easy to use wireless

solutions for 8 and 16 bit embedded systems. In addition, A7 provides several levels of

support for OEM product integration, certification, and even custom solutions.

Website: www.a7eng.com

Sales Email: sales@a7eng.com

A7 Engineering Incorporated

12860 Danielson Court, Suite C

Poway, Ca 92064

858.679.7708 main

858.391.5616 fax

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