ZBA BT44-111S Class 1 Bluetooth Module User Manual Users manual

ZBA, Inc. Class 1 Bluetooth Module Users manual

Users Manual

ZBA, Inc. ZBA Bluetooth 2.0 Class 1 Module Assembly No. BT44 – 111S ZBA, Inc 94 Old Camplain Road, Hillsborough, NJ 08844 www.zbausa.com Page 1
ZBA, Inc. Table of Contents 1234567Document Status .............................................................................................................. 4Scope................................................................................................................................ 5Bluetooth Assembly Description ..................................................................................... 5Features ............................................................................................................................ 5Applications ..................................................................................................................... 6Block Diagram ................................................................................................................. 6Pin-out and Mechanical Specifications............................................................................ 77.17.27.3Pin Configurations..................................................................................................... 7Dimensional Drawing ............................................................................................... 9PCB Land Patterns .................................................................................................. 108 General Specifications ................................................................................................... 118.1 Electrical Characteristics ......................................................................................... 118.1.18.1.2Absolute Maximum Ratings ............................................................................ 11Input/Output Terminal Characteristics ............................................................ 118.2 Radio Characteristics: Basic Data Rate................................................................... 128.2.18.2.28.2.3Transmitter (Temperature =20oC) .................................................................. 12Basic Data Rate---Receiver (Temperature =20oC) ......................................... 13Radio Characteristics: Enhanced Data Rate .................................................... 148.2.3.18.2.3.2Transmitter (Temperature = +20°C)......................................................... 14Receiver (Temperature = +20°C) ............................................................. 169 Typical Application Circuit ........................................................................................... 1810 Serial Port Profile........................................................................................................... 1910.110.2Default Configuration.......................................................................................... 19Configuration Commands Set-up & Procedures ................................................. 1910.2.1 Entering the Set-up Mode ................................................................................ 2010.2.2 Testing the Communication Link .................................................................... 2010.2.3 Command list ................................................................................................... 2010.2.4 Set RS232 Baud Rate (bps).............................................................................. 2010.2.5 Set/inquired UART Parameters ....................................................................... 2110.2.6 Set Authentication............................................................................................ 2110.2.7 Set Password .................................................................................................... 2110.2.8 Set Device Name.............................................................................................. 2110.2.9 Set Device Type ............................................................................................... 2210.2.1010.2.1110.2.1210.2.1310.2.1410.2.1510.2.1610.2.1710.2.1810.2.1910.2.20Set Master/Slave Mode ................................................................................ 22Set Sniff Power Saving Mode ...................................................................... 22Set Sniff Power Saving Mode—Extended ................................................... 22Reset to Factory Default............................................................................... 22Set/Inquire Scan Time .................................................................................. 22Set/Inquire Paired Device............................................................................. 23Clear Paired Device Address........................................................................ 23Inquire Version............................................................................................. 24Inquire Remote Device Address .................................................................. 24Set/Inquire Paired Device Address .............................................................. 24Cancel Inquiry .............................................................................................. 24 Page 2
ZBA, Inc. 10.2.2110.2.2210.2.2310.2.2410.2.2510.2.26Inquire Device BD Address ......................................................................... 25Software Reset.............................................................................................. 25Set/Inquire about Low power mode ............................................................. 25Set/Inquire Data processing mode at BT disconnect ................................... 25Set/Inquire about Flow control mode (Handshaking) .................................. 25Exiting the Set-up Mode .............................................................................. 2611 Low Power Modes ......................................................................................................... 2611.1 Park & Sniff......................................................................................................... 2612 Mounting Recommendations ......................................................................................... 2713 Solder Profiles................................................................................................................ 2714 Ordering Information ..................................................................................................... 28 List of Figures Figure 1: Block Diagram of the BT Module............................................................................ 6Figure 2 Pin Configuration of the BT44-111S Module (top view) ........................................ 7Figure 3 Dimensional Drawing of the BT44-111S (top & side views) ................................... 9Figure 4 Dimensional drawing of the recommended PCB footprint .................................... 10Figure 5 Schematic of typical application circuit ................................................................. 18Figure 6 Cross-section of recommended mounting of the BT module................................. 27 Disclaimer: No part of this document may be copied or reproduced in any form or by any means, or transferred to any third party, without the prior written consent of an authorized representative of ZBA, Inc. (“ZBA”). The information in this document is subject to change without notice. ZBA assumes no responsibility for any errors or omissions that may appear in this document, and disclaims responsibility for any consequences resulting from the use of the information set forth herein. ZBA makes no commitments to update or to keep current information contained in this document. The products listed in this document are not suitable for use in applications such as, but not limited to, aircraft control systems, aerospace equipment, submarine cables, nuclear reactor control systems and life support systems. Moreover, ZBA does not recommend or approve the use of any of its products in life support devices or systems or in any application where failure could result in injury or death. If a customer wishes to use ZBA products in applications not intended by ZBA, said customer must contact an authorized ZBA representative to determine ZBA’s willingness to support a given application. The information set forth in this document does not convey any license under the copyrights, patent rights, trademarks or other intellectual property rights claimed and owned by owned by ZBA. The information set forth in this document is considered to be “Proprietary” and “Confidential” property ALL PRODUCTS SOLD BY ZBA ARE COVERED BY THE PROVISIONS APPEARING IN ZBA’S TERMS AND CONDITIONS OF SALE ONLY, INCLUDING THE LIMITATIONS OF LIABILITY, WARRANTY AND INFRINGEMENT PROVISIONS. ZBA MAKES NO WARRANTIES OF ANY KIND, EXPRESS, STATUTORY, IMPLIED OR OTHERWISE, REGARDING INFORMATION SET FORTH HEREIN OR REGARDING THE FREEDOM OF THE DESCRIBED PRODUCTS FROM INTELLECTUAL PROPERTY INFRINGEMENT, AND EXPRESSLY DISCLAIMS ANY SUCH WARRANTIES INCLUDING WITHOUT LIMITATION ANY EXPRESS, STATUTORY OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Page 3
Date Comments February 2008 http://www.zbausa.com publication June 2008 November 2008 Updated contact info Added PNs for additional profiles February 2012 Update pin orientation drawings ZBA, Inc. 1 Document Status To make a request for change, correction, additions or information on references, please contact: ZBA, Inc. 94 Old Camplain Road Hillsborough, NJ 08844 Phone: 908-359-2070 Fax 908-595-0909 E-mail: techsupport@zbausa.com Website : http://www.zbausa.com Page 4
ZBA, Inc. 2 Scope The intention of this specification is to provide general guidelines on the integration of the BT44-111S Bluetooth assembly. This product, which complies with Bluetooth Specification 2.0, is designed to help companies offer Bluetooth enabled products by speeding their development processes with a ready to integrate Bluetooth assembly with external antenna attachment. 3 Bluetooth Assembly Description The BT44-111S is a general purpose surface mount Bluetooth module with an 50 ohm antenna drive. The BT44-111S Bluetooth Module is a Class 1 Bluetooth module using BlueCore4-External chipset from Cambridge Silicon Radio, a leading Bluetooth chipset supplier. It provides a fully compliant Bluetooth system for data and voice communications. The module interfaces with a host via UART (USB optional) and supports EDR data rate up to 3Mbps modulation modes. The module and device firmware is fully compliant with the Bluetooth specification V2.0. The Bluetooth assembly is available in four different variants: 1) UART transport with serial port emulation (Serial Port Profile) 2) UART transport with HCI interface 3) UART transport with HID interface 4) UART transport with OBEX and FTP profiles Modules with profiles corresponding to variants 2, 3 and 4 are available upon special request. 4 Features Operating Frequency Band 2.40 GHz~2.48GHz unlicensed ISM Band Bluetooth Spec. v2.0 Compliant + Enhanced Data Rate (EDR) • EDR compliant with v2.0.E.2 of specification for both 2Mbps and 3Mbps modulation modes Class 1 Output Power Range up to 100m Firmware Upgrade Support (via the UART) Solder down connections Active Bluetooth Connections signal Piconet Support, up to 7 Slaves USB 2.0 and UART Host Interface PCM Audio Interface Low Voltage Power Supply, 2.7V to 3.6V Built-in 8Mbit Flash Memory Low Power Modes Available: Park, Sniff, Hold and Deep Sleep Dimensions: 27.5 x 14.5 x 2 mm Page 5
ZBA, Inc. 5 Applications PCs, PDAs Computer Accessories (CF Cards, USB Dongles, PCMCIA, RS232 Adaptors, etc.) Mice, Keyboards, Joysticks Cordless Phones FAX, Printer Adaptors Digital Cameras Access Points to LAN and/or Dial-up network 6 Block Diagram The transmitter design consists of a Bluetooth Chip device connected to an Atmel power amplifier via a matching network and balun. Harmonic filtering, a transmit/receive switch, a ceramic bandpass filter and a SMA connector are also included. The receiver uses the same antenna, bandpass filter and transmit/receive switch as the transmitter. To improve the sensitivity, the LNA within the Atmel device and the single- ended receiver port of Bluetooth Chip are used. Figure 1: Block Diagram of the BT Module Page 6
Pin # Name Type Description1 ANT I/O Transmitter out and receiver input 2 GND GND Ground 3 PIO2 Bi-directional with programmable strength internal pull-up/down Programmable Input/Output Line 4 PIO3 Bi-directional with programmable strength internal pull-up/down Programmable Input/Output Line 5 PIO[4]/ BT_Priority/ Ch_Clk Bi-directional with programmable strength internal pull-up/down Programmable input/output line or Optionally BT_Priority/Ch_Clk output for co-existence signaling 6 6 PIO[5]/ BT_Active Bi-directional with programmable strength internal pull-up/down Programmable input/output line or Optionally BT_Active output for co-existence signaling ZBA, Inc. 7 Pin-out and Mechanical Specifications 7.1 Pin Configurations Figure 2 Pin Configuration of the BT44-111S Module (top view) Page 7
7 PIO[6]/ WLAN_Active/ Ch_Data Bi-directional with programmable strength internal pull-up/down Programmable input/output line or Optionally WLAN_Active/Ch_Data input for co-existence signaling 8 PIO7 Bi-directional with programmable strength internal pull-up/down Programmable Input/Output Line 9 PIO8 Bi-directional with programmable strength internal pull-up/down Programmable Input/Output Line 10 PIO9 Bi-directional with programmable strength internal pull-up/down Programmable Input/Output Line 11 PIO10 Bi-directional with programmable strength internal pull-up/down Programmable Input/Output Line 12 PIO11 Bi-directional with programmable strength internal pull-up/down Programmable Input/Output Line 13 USB_DN Bi-directional USB Data- 14 USB_DP Bi-directional USB Data+ 15 PCM_CLK Bi-directional with weak internal pull-down Synchronous Data Clock 16 PCM_IN CMOS input, with weak internal pull-down Synchronous data input 17 PCM_SYNC Bi-directional with weak internal pull-down Synchronous Data Strobe 18 PCM_OUT CMOS output, tri-state, with weak internal pull-down Synchronous Data Output 19 GND GND Ground 20 VDD Power Supply 3.3 V for RF circuit 221 VCC Filter Filter Capacitor for 1.8V 22 UART_RX CMOS input with weak internal pull-down Asynchronous Serial Data 23 UART_RTS CMOS output, tri-state, with weak internal pull-up UART ready to send 24 UART_TX CMOS output, tri-state, with weak internal pull-up Asynchronous Serial Data Output 25 UART_CTS CMOS input with weak internal pull-down UART clear to send 26 SPI_MOSI CMOS input with weak internal pull-down Synchronous Serial Interface Data Input 27 SPI_CLK CMOS input with weak Internal pull-down Synchronous Serial Interface Clock 28 SPI_CSB CMOS input with weak internal pull-up Chip select for Synchronous Serial Interface 29 SPI_MISO CMOS output, tri-state, with weak internal pull-down Synchronous Serial Interface Data Input 30 RESET CMOS input with weak internal pull-up Reset if low. Input ZBA, Inc. Page 8
internal pull-up de-bounced so must be low for >5ms to cause a reset 31 AIO1 Bi-directional Programmable Input/Output line 32 AIO0 Bi-directional Programmable Input/Output line 33 GND GND Ground 34 GND GND Ground 35 GND GND Ground 36 GND GND Ground 37 GND GND Ground 38 GND GND Ground ZBA, Inc. 7.2 Dimensional Drawing Figure 3 Dimensional Drawing of the BT44-111S (top & side views) Page 9
ZBA, Inc. 7.3 PCB Land Patterns The BT44-111S is a solder down Bluetooth module. The pad is an edge style pad with a pitch of 50mils. The exact dimensions of the pad should always be cross-checked with the manufacturer of the PCB and the assembly locations. The dimensions shown below are only recommended dimensions and are used on our testing boards. See Figure 4 below. Figure 4 Dimensional drawing of the recommended PCB footprint Page 10
Voltage Supply Voltage Range -0.3 to 3.6 V Voltage at digital pins -0.3 to 3.6 V Storage Conditions Storage Temperature -10°C to 70°C (ambient) Storage Humidity 0-90% RH Operating Conditions Temperature Range -0°C< TA<60°C Peak Power supply current 150 mA Relative humidity 5% to 95% non condensing Digital Terminals Min Typ Max UnitsInput Voltage Levels VIL input logic level low2.7V = VDD = 3.0V -0.4 +0.8 V VIH input logic level high - 0.7VDD VDD+0.4 V Output Voltage Levels ZBA, Inc. 8 General Specifications Item Carrier Frequency Modulation Channel Intervals Number of Channels Frequency Hopping Receive Sensitivity Transmission Power Maximum Data Throughput Output Interface Power Supply Operating Temperature Range Storage Temperature Range Antenna Specification 2400MHz to 2483.5MHz GFSK, 1Mbps, 0.5BT Gaussian 1MHz 79 1600hops/sec, 1MHz channel space -82 dBm typ. @0.1% BER +18dBm max. Asynchronous : 3 Mbps Full speed UART, 3.3V ±10% -20°C to 85°C -40°C to 85°C 50 ohm external antenna required ( not part of the module) 8.1 Electrical Characteristics 8.1.1 Absolute Maximum Ratings Absolute maximum ratings for supply voltage and voltages on digital and analog pins of the Module are listed below; exceeding these values will cause permanent damage 8.1.2 Input/Output Terminal Characteristics Page 11
VOL output logic level low (lo = 4.0mA), 2.7V = VDD = 3.0V - 0.2 V VOH output logic level high (lo = -4.0mA), 2.7V = VDD = 3.0V VDD- 0.2 V Input and Tri-state Current with: Strong pull-up -100 -40 -10 µA Strong pull-down +10 +40 +100 µA Weak pull-up -5.0 -1.0 -0.2 µA Weak pull-down +0.2 +1.0 +5.0 µA I/O pad leakage current I -1 0 +1 µA CI Input Capacitance 1.0 - 5.0 pF USB Terminals Min Typ Max UnitsVDD_USB for correct USB operation（1） 3.1 3.6 V Input threshold VIL input logic level low - - - 0.3VDD_USB V VIH input logic level high 0.7VDD_USB - - V Input leakage current VSS_PADS < VIN < VDD_USB(1) -1 1 5 µA CI Input capacitance 2. 5 - 10.0 pF Output Voltage levels To correctly terminated USB Cable VOL output logic level low 0.0 - 0.2 V VOH output logic level high 2.8 - VDD_USB V Description Min Typ MAX Bluetooth Specification Units Maximum RF transmit power (3) 14 (4) - 0 to +20 dBm Variation in RF power over temperature range with compensation disabled (±) 2.0 - - dB Variation in RF power over temperature range with compensation enabled (±) 1.0 dB RF power control range >20 >16 dB RF power range control resolution 0.5 - dB ZBA, Inc. 8.2 Radio Characteristics: Basic Data Rate 8.2.1 Transmitter (Temperature =20oC) Page 12
20dB bandwidth for modulated carrier - 670 ≤1000 kHz Adjacent channel transmit power F=F0 ±2MHz -35 ≤-20 dBm Adjacent channel transmit power F=F0 ±3MHz - -40 ≤-40 dBm Adjacent channel transmit power F=F0>±3MHz - -47 ≤-40 dBm Δf1avg Maximum Modulation 159 140<? f1avg<175 kHz Δf2max Minimum Modulation 123 - ≥115 kHz Δf2avg / ?f1avg - 0.84 ≥0.80 - - Initial carrier frequency tolerance - 6.0 ±75 KHz Drift Rate 8.0 ≤20 kHz/50µsDrift (single slot packet) 9.0 ≤25 - kHz Drift (five slot packet) 11.0 ≤40 kHz nd 2 Harmonic content -43 ≤- 30 dBm rd 3 Harmonic content -34 ≤- 30 dBm Frequency (GHz ) Min Typ MAX Bluetooth Specification Units 2.402 - -86.5 - ≤-70 dBm dBm 2.441 -86.5 Sensitivity at 0.1% BER for all packet types 2.480 -87 Maximum received signal at 0.1% BER - >-20 ≥-20 dBm Frequency (MHz ) Min TypMAXBluetooth Units ZBA, Inc. Notes: (1) The design is capable of producing 18dBm at 20°C. However, in order to meet both the FCC Part 15.205a and 15.209a radiated spurious requirement of -41dBm/MHz (500microvolts/metre at a distance of 3 meters) and the Bluetooth requirement for ACP, it is necessary to limit the maximum output power to +14dBm at 20°C. The corresponding recommended POWER_TABLE entry is internal gain 55, external gain 170. (2) Class 1 RF transmit power range, Bluetooth specification v2.0 + EDR. (3) To some extent these parameters are dependent on the matching circuit used and its behaviour over temperature. Therefore, these parameters may be beyond CSR’s direct control. (4) Resolution guaranteed over the range -5dB to -25dB relative to maximum power for Tx Level >20. (5) Measured at F0 = 2441MHz. (6) Up to three exceptions are allowed in v2.0 + EDR of the Bluetooth specification. BlueCore4-External is guaranteed to meet the ACP performance as specified by the Bluetooth specification v2.0 + EDR. (7) Measurement made using a POWER_TABLE entry of internal gain 55, external gain 170. This ensures that the Bluetooth requirements and those defined by the FCC and ETSI are satisfied over the operating temperature range of -20°C to +65°C. Measured using an operating output power of 14dBm at 20°C. 8.2.2 Basic Data Rate---Receiver Page 13 (Temperature =20oC)
Specification 30 – 2000 >0 -10 dBm 2000– 2400 - >-15 -27 Continuous power required to block Bluetooth reception (for sensitivity of - 67dBm with 0.1% BER). Measured at the antenna connection. 2500– 3000 >-18 -27 C/I co-channel -9 ≤11 dB Adjacent channel selectivity C/I F=F0 +1MHz -4 ≤0 dB Adjacent channel selectivity C/I F=F0 - 1MHz -2 ≤0 dB Adjacent channel selectivity C/I F=F0 +2MHz -38 ≤-30 dB Adjacent channel selectivity C/I F=F0 - 2MHz -21 ≤-20 dB Adjacent channel selectivity C/I F=F0 ?+3MHz -43 - ≤ -40 dB Adjacent channel selectivity C/I F=F0 - 5MHz - -43 ≤-40 dB Adjacent channel selectivity C/I F=FImage -21 <-9 dB Maximum level of inter- modulation interferers -37 ≥-39 dBm Spurious output level -140 - dBm/HzDescription Min Typ Max Bluetooth Specification units Maximum RF transmit power 18(2) - 0 to +20 (3) dBm Relative transmit power -2 -4 to +1 dB π/4 DQPSK Max carrier frequency stability w0 1.5 ≤±10 for all blocks kHz π/4 DQPSK Max carrier frequency stability wi 6.6 - ≤ ±75 for all packets kHz ZBA, Inc. Notes: (1) Up to five exceptions are allowed in v2.0 + EDR of the Bluetooth specification. BlueCore4-External is guaranteed to meet the C/I performance as specified by the Bluetooth specification v2.0 + EDR (2) Measured at F0 = 2441MHz (3) Measured at f1-f2 = 5MHz. Measurement is performed in accordance with Bluetooth RF test RCV/CA/05/c, i.e. wanted signal at -64dBm (4) Measured at the antenna connection. Integrated in 100kHz bandwidth and then normalized to 1Hz. Bluetooth band of frequencies, with exceptions of -84dBm at 1625MHz, -76dBm at 2435MHz, and -68dBm at 3200MHz. 8.2.3 Radio Characteristics: Enhanced Data Rate 8.2.3.1 Transmitter (Temperature = +20°C) Page 14
π/4 DQPSK Max carrier frequency stability ¦w0 + wi¦ 7.0 ≤±75 for all blocks kHz 8DPSK Max carrier frequency stability w0 1.5 - ≤ ±10 for all blocks kHz 8DPSK Max carrier frequency stability wi 4.5 ≤±75 for all packets kHz 8DPSK Max carrier frequency stability ¦w0 + wi¦ 5.0 ≤±75 for all blocks kHz π/4 DQPSK Modulation Accuracy RMS DEVM 7.0 - ≤ 20 % 99% DEVM 12.0 ≤30 % Peak DEVM 16.0 ≤35 % 8DPSK Modulation Accuracy RMS DEVM 8.0 - ≤13 % 99% DEVM 13.0 ≤20 % Peak DEVM 16.0 ≤25 % In-band spurious emissions F > Fo+3MHz - -45 ≤-40 dBm F < Fo -3MHz -45 ≤-40 dBm F = Fo -3MHz(6) -38 ≤-40 dBm F = Fo -2MHz -25 ≤-20 dBm F = Fo –1MHz -36 ≤-26 dB F = Fo +1MHz -36 ≤-26 dB F = Fo +2MHz -25 ≤-20 dBm F = Fo +3MHz(6) -28 ≤-40 dBm EDR Differential Phase Encoding No Errors =99 % ZBA, Inc. Notes: (1) BlueCore4-External firmware maintains the transmit power to be within the Bluetooth v2.0 + EDR specification limits. (2) Although the design is capable of generating in excess of +18dBm, regulatory compliance over the full temperature range of -20°C to +65°C will not be satisfied if the transmit power approaches this value. Actual output power with TX_PRE 71, INT PA 63, EXT PA 255 corresponds to +8dBm at 20°C. Page 15
Description Min Typ. Max Bluetooth specification Units Sensitivity at 0.01% BER π/4 DQPSK - -89 - ≤-70 dBm 8DPSK - -82 - ≤-70 dBm Maximum received signal at 0.1% BER π/4 DQPSK - >0 - ≥-20 dBm 8DPSK - -10 - ≥-20 dBm C/I co-channel at 0.1% BER π/4 DQPSK - 10 - ≤+13 dB 8DPSK - 18 - ≤+21 dB Adjacent channel selectivity C/I F=F0 +1MHz -11 ≤0 π/4 DQPSK - - dB 8DPSK - -5 - ≤ +5 dB Adjacent channel selectivity C/I F=F -1MHz π/4 DQPSK - - -8 - ≤0 dB dB 8DPSK - -4 - ≤+5 dB Adjacent channel selectivity C/I F=F dB 0 +2MHz π/4 DQPSK - -43 - ≤-30 dB 8DPSK - -38 - - ≤ -25 dB Adjacent channel selectivity C/I F=F dB 0 -2MHz ZBA, Inc. (3) Class 1 RF transmit power range, Bluetooth v2.0 + EDR specification. (4) Measurements methods are in accordance with the EDR RF Test Specification v2.0.E.2. (5) Modulation accuracy utilizes Differential Error Vector Magnitude (DEVM) with tracking of the carrier frequency drift. (6) The Bluetooth specification values are for 8DPSK modulation. Up to three exceptions are allowed in the Bluetooth v2.0 + EDR specification. BlueCore4-External is guaranteed to meet the ACP performance as specified by the Bluetooth v2.0 + EDR specification. 8.2.3.2 Receiver (Temperature = +20°C) Page 16
π/4 DQPSK - -22 - ≤-20 dB 8DPSK - - 22 - ≤-13 dB Adjacent channel selectivity C/I F=F dB 0 +3MHz π/4 DQPSK - -46 - ≤-40 dB 8DPSK - -42 - ≤-33 dB Adjacent channel selectivity C/I F=F dB 0 –5MHz π/4 DQPSK - -43 - ≤ -40 dB 8DPSK - -40 - - ≤ -33 dB Adjacent channel selectivity C/I F=F dB Image π/4DQPSK - -21 - ≤-7 dB 8DPSK - -14 - ≤0 dB ZBA, Inc. Notes: (1) Measured at F0 = 2405MHz, 2441MHz, 2477MHz Page 17
ZBA, Inc. 9 Typical Application Circuit Figure 5 Schematic of typical application circuit Page 18
ZBA, Inc. 10 Serial Port Profile When shipped with the pre-programmed Serial Port Profile (SPP), the module’s firmware emulates the function of a serial port. When connected to the host microprocessor via the UART transport, the module appears as a COM port. This makes it easy for designers to write software to utilize Bluetooth wireless communication. The SPP profile embedded within the module provides a menu for making configuration changes utilizing AT commands described below in section 10.2: 10.1 Default Configuration • • • • • • • • • • UART Baud Rate: 9600 baud Number of Bits: 8 Stop bit: One Parity: None H/W Flow Control: Disable PIN: 1111 Device Name: ZBA-SPP Mode: Slave Sleep Mode: Deep sleep whenever possible. Partner pairing is dropped at power off or un-pairing by master. 10.2 Configuration Commands Set-up & Procedures PC interface: If you wish to connect the module to a PC’s comm. port it is necessary to include a level shifter between the module and the PC. A recommended interface IC would be the MAX3232 RS232 driver IC (or equiv.) and a 3.3 Volt voltage regulator. Please contact ZBA for details on purchasing an evaluation board to ease the interface the module to the PC. Microcontroller Interface: The UART of the Bluetooth module can directly connect to the microprocessors UART. The Microprocessor must have an I/O that will operate from 0 to 3.3 Volts or the appropriate level shifter circuitry must be used as to not overstress the I/O of either device. Entering Command Mode: . For modules to enter in the command mode, the host must send a single character ESC <0x1B> within 5 second after the unit has been powered on. If the ESC character is not sent within the specified 5 second window then the module will automatically enter the SPP mode and any information sent to the UART will be treated as data to be transmitted over a Bluetooth link. Please note. The modules will only respond to the host set-up commands Page 19
Command Response Parameter ESC <CR> +OPEN:num<CR><LF> Num= 0: device is not paired Num= 1 Device has a saved BT Address in memory Command Response Parameter AT OK None Command Response Parameter ATZ? List of Commands None ZBA, Inc. after the module has entered the command mode Entering the SPP mode After running any set-up commands then there are two ways to enter the SPP mode a) Disconnect the 3.3 Volts supply to the module then re-power the module and DO NOT hit the <ESC> key or send the <ESC> command. After 5 seconds the module will be in the SPP operation mode. b) From the Set-up mode type: AT+EXIT The module will respond with: OK The module is now in SPP operation mode. Note: All Commands except the first <ESC> command should contain a suffix of <CR><LF>. 10.2.1 Entering the Set-up Mode Note: If the device returns +open:0 and bind is disabled (bind=0) then the device is not paired or connected and there is no remote device saved in the remote address (+RADDR) variable If the device returns a +open:1 and the bind is enabled (bind=1) then the module device is operating as a cable replacement function and it will pair with the master Bluetooth device that is saved in the remote address variable ASAP. The BT44-xxx module is bound to the companion device whose address is saved in the + RADDR variable. 10.2.2 10.2.3 10.2.4 Testing the Communication Link Command list Set RS232 Baud Rate (bps) Command Response Page 20 Parameter
Command Response Parameter AT+UARTMODE=<Para1>,<Para2> OK AT+ UARTMODE? OK UARTMODE: <Para1>,<Para2> <Para1>= Stop-bit <Para1> 0 = 1 Stop bit 1 = 2 Stop bits <Para2> Parity- bit 0 = None 1 = ODD 2 = EVEN Command Response Parameter AT+AUTH=<Para1> OK AT+AUTH? OK +AUTH:<Para1> Para1 = Authentication 0 = disable 1= enable Default mode: Authentication enabled Command Response Parameter AT+PASSWORD= < Para1> OK AT+PASSWORD? OK +PASSWORD: < Para1> Para1 Password Default = 1111 Command Response Parameter AT+NAME= < Para1> OK AT+NAME? OK +NAME: <Para1> Para1= Device name Default= ZBA-SPP ZBA, Inc. Note: The default baud rate is 9600bps 10.2.5 Set/inquired UART Parameters Note: the default UARTMODE parameters are N, 8, 1 and the overall comm. Default Parameters are 9600,N,8,1 10.2.6 Set Authentication Note: The default authentication mode is Authentication enabled. 10.2.7 Set Password Note: The default authentication password = 1111. 10.2.8 Set Device Name Page 21
AT+BAUD= <Para1> OK Para1 = 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400 AT+BAUD? OK +BAUD: <para1>
Command Response Parameter AT+SNIFFEX=<Para1>,<Para2>,<Para3>,<Para4> OK AT+SNIFFEX? OK +SNIFFEX<Para1>,<Para2>,<Para3>,<Para4> Para1 Maximum Para2 Minimum Para3 test Para4 Over time Para5 Sniff timeout Command Response Parameter AT+SNIFF=<Para1>,<Para2>, <Para3>,<Para4> OK AT+SNIFF? OK +SNIFF<Para1>,<Para2>, <Para3>,<Para4> Para1 Maximum Para2 Minimum Para3 test Para4 Over time Command Response Parameter AT+CLASS=< Para1> OK AT+CLASS? OK +CLASS:<Para1> Para1 Device type (Length must = 6 characters) default = 000000 Command Response Parameter AT+ROLE=< Para1> OK AT+ROLE? OK +ROLE: <Para1> Para1 Slave = 0, Master = 1 Default = 0, Slave Command Response Parameter AT+RESET OK None ZBA, Inc. Note: The default Device name = ZBA-SPP. 10.2.9 Set Device Type 10.2.10 Set Master/Slave Mode Note: The default mode is Slave. 10.2.11 Set Sniff Power Saving Mode Note: Default = 1024, 512, 1024, 512 number in decimal mode 10.2.12 Set Sniff Power Saving Mode—Extended Note: Default = 1024, 512, 1024, 512, 10 number in decimal mode 10.2.13 Reset to Factory Default 10.2.14 Set/Inquire Scan Time Command Response Page 22 Parameter
AT+SCANTIME=<Para1>,<Para2>,<Para3>,<Para4> OK AT+SCANTIME? OK +SCAN :<Para1>,<Para2>,<Para3>,<Para4> Para1= Scan interval tim Para2=Scan time-out Para3=Inquiry intervalPara4=Inquiry time-outCommand Response Parameter AT+BIND= < Para1> OK AT+BIND? OK +BIND:<Para1> Para1 0 = Drop pair 1 =Always paired Default=0 Drop pairing Command Response Parameter AT+CLEARADDR OK None ZBA, Inc. Note: The Default Values (in decimal = N* 625 us) Para1 = 2048 Para2 = 18 Para3 = 2048 Para4 = 18 10.2.15 Set/Inquire Paired Device Note: The default mode is to drop pair. The drop pair function occurs when the module (slave or master mode) is power-off then back on or the master drops pairing. This will allow another master to commence a discovery process and connect to the module (slave) device. If the device is set-up as always paired (bind=1) then the module will only communicate with the specific slave (or master) whose address it has been bound to even after power off and power-on. This mode is useful for application where a cable replacement function is the requirement. To communicate to a different master, the module must have the bound address cleared. This is accomplished by running the AT+CLEARADDR command. If a module has been operated with bind=1 and then subsequently the bind function is set to 0, the module will still remember the previous bound address. So if bind is re-enabled then device will re-connect to the previously bound master. To clear the memory please run the AT+CLEARADDR command. 10.2.16 Clear Paired Device Address Note: This command will clear any remote device address to which the module has been paired. Page 23
Command Response Parameter AT+INQ OK + BT address, Device name Command Response Parameter AT+RADDR=<Para1> OK AT+ RADDR? OK +RADDR:<Para1> Para1= Paired device BT address Command Response Parameter AT+VERSION? OK +VERSION:<Para1> Para1 version # Command Response Parameter AT+CANCEL? OK ZBA, Inc. 10.2.17 Inquire Version Note: This command will return the firmware version of the module. 10.2.18 Inquire Remote Device Address Note: This command commences the discovery process to detect any BT device in the neighborhood. Completion of this command may take up to 30 seconds. An example of the response to the above command is: +INQRESU:0005164801E6, ZBA- SPP where the data following the colon is one example of the Bluetooth address of one of the devices in the neighborhood and the data following the comma is the name of the discovered device. 10.2.19 Set/Inquire Paired Device Address Example of how to pair using the BT44-191 as the Master Example to set-up the Module to communicate with one specific BT device whose BT address is currently unknown. First type: AT+INQ which causes the Module to return the BT addresses of the devices in the BT neighbourhood. Then the module will return +INQCOMP. This response will indicate that the Inquiry process has terminated. To terminate the AT+INQ command early, please type the command AT+CANCEL Then type AT+RADDR= BT address (the specific device you wish to pair as determined from the AT+INQ Command). . The module will remain bound to this address until the AT+CLEARADDR (command 8.2.16) is run or the module is powered off and then back on again. 10.2.20 Cancel Inquiry Page 24
Command Response Parameter AT+ DATAMODE=<Para1> OK <Para1>： 0：Data is held in buffer, & it will be sent to the other device after successfully connect. 1：Data will be deleted after the BT devices have been disconnected. AT+ DATAMODE? OK ＋DATAMODE：<Para1> Command Response Parameter AT+LOWPOWER=<Para1> OK <Para1>： 0： low power disabled 1：Low power mode Enabled AT+ LOWPOWER? OK +LOWPOWER：<Para1> Command Response Parameter AT+ FLOWCONTROL=<Para1> OK <Para1>： 0: No Flowcontrol 1：Use hardware Flowcontrol Command Response Parameter AT+LADDR? OK +LADDR:<Para1> Para1 Device address ZBA, Inc. +INQCOMP Note: This command will cancel the inquiry command (AT+INQ). 10.2.21 Inquire Device BD Address Note: This command returns the (local) BT address of the module. 10.2.22 Software Reset 10.2.23 Set/Inquire about Low power mode Note: the default value for Low power =0 10.2.24 Set/Inquire Data processing mode at BT disconnect Note: the default value for Datamode =0 10.2.25 Set/Inquire about Flow control mode (Handshaking) Page 25
Command Response Parameter AT+ RESTART OK None
Command Response Parameter AT+EXIT OK None ZBA, Inc. AT+ FLOWCONTROL? OK ＋FLOWCONTROL：<Para1> Note: the default value for Flowcontrol =0 10.2.26 Exiting the Set-up Mode Note: This command returns the module to SPP mode. 11 Low Power Modes 11.1 Park & Sniff The module will automatically go into a reduced power mode if there is no UART activity and no RF activity. The Device will sniff in order to maintain synchronization with the Master. To save maximum power then it is possible to completely turn-off the power to the module. When operating in this mode the Master/ Slave must then proceed through the Discovery phase (consuming time and energy) before a connection can be re-established. This mode is only recommended if there are very, very long periods of inactivity and the battery power is of the utmost concern. Page 26
ZBA, Inc. 12 Mounting Recommendations For maximized performance please orient the device with the antenna as close to the antenna connector as possible. Best performance will occur if the underlying PCB has a ground plane under the module. BT module Plastic Ground Planes Housing Host PCB Side View Figure 6 Cross-section of recommended mounting of the BT module 13 Solder Profiles WARNING : Contact ZBA if you wish to reflow the Modules in your production environment. There are specific configurations that need to be reviewed with the production facility to allow for proper reflow of the modules. Typically sample quantities of the modules are hand soldered! Small quantities of modules should be hand soldered to the main PCB. When ordering PRODUCTION QUANTITES please CONTACT ZBA to make sure that the modules have the correct configuration for Reflow processing. The solder profile is available upon request. Page 27
Ordering P/N DescriptionBT44-191S-XXX Class 2 Module with Onboard Antenna XXX = SPP Serial Port Profile = HCI Host controller Interface over UART = HID Human Interface device = OOX Object push/ pull and FTP BT44-147S-XXX Class 2 Bluetooth Module requires External Antenna XXX = SPP Serial Port Profile = HCI Host controller Interface over UART = HID Human Interface device = OOX Object push/pull and FTP Ordering P/N Description BT44-111S-XXX Class 1 Bluetooth Module requires an External Antenna XXX = SPP Serial Port Profile = HCI Host controller Interface over UART = HID Human Interface device = OOX Object push/ pull and FTP ZBA, Inc. 14 Ordering Information Other Solder down Bluetooth module variants Please contact ZBA Inc at 908-359-2070 for any other profiles that you may require. #### Page 28
Page 29 FCC ID statement This equipment complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. IC ID statement Disclaimer: Operation is subject to the following two conditions: (1) This device may not cause interference, and (2) This device must accept any interference, including interference that may cause undesired operation of the device. RF exposure warning This equipment must be installed and operated in accordance with provide instructions and the antenna used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operation in conjunction with any other antenna or transmitter. End-users and installers must be provide with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance. Information for the OEMs and Integrators The following statement must be included with all versions of this document supplied to an OEM or integrator, but should not be distributed to the end user. This device is intended for OEM integrators only. Please see the full grant of equipment document for other restrictions. Information to be supplied to the end user by the OEM or Integrator The following regulator and safety notices must be published in documentation supplied to the end user of the product or system incorporating an adapter in compliance with local regulation. Host system must be labeled as following: “Contains transmitter module FCC ID: VMTB44-111S, IC ID: 8941A-BT44111S”

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