Chengdu Ebyte Electronic Technology E32-TTL-100 Wireless transceiver module User Manual E32 TTL 100 Datasheet V1 0

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E32-TTL-100 Datasheet V1.0
Chengdu Ebyte Electronic Technology Co., Ltd.
Website： www.cdebyte.com
Purchase the sample：http://www.aliexpress.com/store/2077046
E32-TTL-100 Datasheet V1.0
.1．Introduction
E32-TTL-100
1.1 Feature
E32-TTL-100
E32-TTL-100 is a wireless transceiver module with LoRa spread-spectrum
technology, operates at 434MHz, based on original imported RFIC SX1278
from SEMTECH, transparent transmission is available, TTL level. The module
adopts LoRa spread-spectrum technology, which means the transmitting
distance is much longer than before. The advantages of this module is more
concentrated power density and better anti-interference performance.
The module features FEC （Forward Error Correction） algorithm, which
ensure its high coding efficiency & good correction performance. In the case
of sudden interference, it can correct the interfered data packets automatically,
so that the reliability & transmission range are improved correspondingly. But without FEC, those date packets can
only be dropped.
The module has the function of data encryption & compression. The data of the module transmit in the air
features randomness. And with the rigorous encryption & decryption, data interception becomes pointless. The
function of data compression can decrease the transmission time & probability of being interference, while
improving the reliability & transmission efficiency.
1.2 Basic usage
No.
E32-TTL-100
Usage
Description
Transparent
Default
transmission
Module A transmits 01 02 03 to module B, then module B receives 01 02 03.
Module can communicate with other modules in different channels, easy for
networking and repeater.
Fixed
Module A transmits AA BB CC to module B (address: 0x00 01, channel: 0x80), HEX
transmission
format is 00 01 80 AA BB CC (00 01 refers to the address of module B, 80 refers to the
channel of module B), then module B receives AA BB CC (only module B).
Broadcast
Set the module address as 0xFFFF, then the module can communicate with other
transmission
Power-saving
Sleep
modules in same channel.
In power-saving mode, the module’s maximum receiving response time is 2000ms,
which the average current is below 50uA.
When the module works in sleep mode, transmitting & receiving is not available,
while the configuration is available. The typical current is 2.0uA in this mode.
See more details in related manual about fixed transmission and broadcast transmission.
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Chengdu Ebyte Electronic Technology Co., Ltd.
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1.3 Electrical parameter
No.
Parameter item
Size
Frequency Band
Connector
Supply voltage
Communication level
E32-TTL-100
Parameter details & Description
21 * 36mm,
Without antenna and SMA
434MHz
1*7*2.54mm
Plug-in
2.3 - 5.5V DC
Note: the voltage higher than 5.5V is forbidden
UART, USART
About 3000m
Operation Range
Test condition：clear and open area& maximum power， height:> 2m，air
date rate: 2.4kbps
Transmitting power
Air data rate
Standby current
10
Transmitting current
11
Receiving current
Communication
12
interface
Four optional level（0-3），step by 3dB
Default 2.4kbps
Can be configured to 0.3、1.2、2.4、4.8、9.6、19.2kbps
2.0uA
M1=1,M0=1 ( Mode 3 )
110mA
14.5mA（Mode 0 or Mode 1）
Minimum 30uA（Mode 2 + 2s wake-up time）
UART， 8N1、8E1、8O1，
Eight kinds of UART baud Rate, from 1200 to 115200 bps
13
Driving mode
14
Transmitting length
512 bytes buffer，58 bytes per package
15
Receiving length
512 bytes buffer，58 bytes per package
16
Address
17
RSSI support
18
Sensitivity
19
Antenna type
Easy for network, broadcast and fixed transmission
Sensitivity has nothing to do with serial baud rate and timing
Operating
temperature
Storage temperature
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Built-in intelligent processing
-130dbm@0.3kbps
temperature
21
22
65536 configurable addresses
Operating
20
UART can be configured to push-pull/high pull, open-drain
SMA-K
External thread hole, 50 ohm impedance
-40 ~ +85℃
10% ~ 90%
-40 ~ +125℃
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E32-TTL-100 Datasheet V1.0
Chengdu Ebyte Electronic Technology Co., Ltd.
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.2．Functional description
E32-TTL-100
2.1 Pin definition
E32-TTL-100
Pin No.
Pin item
Pin direction
M0
M1
RXD
Input
TXD
Output
Input
（weak pull-up）
Input
（weak pull-up）
Pin application
Work with M1 & decide the four operating modes.
Floating is not allowed, can be ground.
Work with M0 & decide the four operating modes.
Floating is not allowed, can be ground.
TTL UART inputs, connects to external (MCU, PC) TXD output
pin. Can be configured as open-drain or pull-up input.
TTL UART outputs, connects to external RXD (MCU, PC) input
pin. Can be configured as open-drain or push-pull output
To indicate module’s working status & wakes up the external
AUX
Output
MCU. During the procedure of self-check initialization, the pin
outputs low level. Can be configured as open-drain output or
push-pull output (floating is allowed).
VCC
Power supply 2.3V-5.5V DC
GND
Ground
Fixing hole
Fixing hole
Fixing hole
Fixing hole
10
Fixing hole
Fixing hole
★★★ E32-TTL-100 can be compatible with other E32 series. ★★★
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2.2 Connect to MCU
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E32-TTL-100
No.
Description（STM8L MCU）
The UART module is TTL level.
For some MCU works at 5VDC, it may need to add 4-10K pull-up resistor for the TXD & AUX pin.
2.3 Reset
E32-TTL-100
No.
Description
When the module is powered, AUX outputs low level immediately, conducts hardware self-check and
set the operating mode on the basis of the user parameters. During the process, the AUX keeps low
level. After the process completes, the AUX outputs high level and starts to work as per the operating
mode combined by M1 and A0. Therefore, the user needs to wait the AUX rising edge as the starting
point of module’s normal work.
2.4 AUX description
E32-TTL-100
AUX Pin can be used as indication for wireless send & receive buffer and self-check. It can indicate whether
there are data that are yet to send through wireless, or whether all wireless data has sent through UART, or
whether the module is still in the process of self-check initialization.
No.
Description
【Indication of UART output】can be used to wake up external MCU.
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【Indication of wireless transmitting】
Buffer (empty): the internal 512 bytes data in the buffer are written to the RFIC (Auto
subpackage). When AUX=1, the user can input data less than 512 bytes continuously without
overflow.
Buffer (not empty): when AUX=0, the internal 512 bytes data in the buffer have not written to
the RFIC completely. If the user starts to transmit data at this circumstance, it may cause
overtime when the module is waiting for the user date, or transmitting wireless subpackage.
Notes: When AUX = 1, it does not mean that all the UART data of the module have been
transmitted already, perhaps the last packet of data is still in transmission.
【Configuration procedure of module】
Only happened in the process of power-on and exit sleep mode.
No.
Notes for AUX
For function 1 & function 2 mentioned above, the priority should be given to the one with low
level output, which means if it meets each of any low level output condition, AUX outputs low
level, if none of the low level condition is meet, AUX outputs high level.
When AUX outputs low level, it means the module is busy & cannot conduct operating mode
checking.
After AUX outputs high level 1ms later, it will complete the mode-switch task.
After switching to new operating mode, it won’t be work in the new mode immediately until
AUX rising edge 2ms later.
If AUX is on the high level, the operating mode switch can be effect immediately.
When the user switches to other operating modes from mode 3 (sleep mode) or it’s still in reset
process, the module will reset user parameters, during which AUX outputs low level.
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.3．Operating mode
E32-TTL-100
Contents in below table are the introduction of input status of M1 & M0 and their corresponding mode:
Mode（0-3）
Mode 0
Normal
M1
M0
Mode introduction
UART
and
wireless
channel
Remark
is
opened,
transparent transmission is on.
The receiver must works
in mode 0 or mode 1
UART and wireless channel is opened. The
Mode 1
Wake-up
difference between normal mode and wake-up
The receiver can works
mode is it will add preamble code automatically
in mode 0, mode 1 or
before data packet transmission so that it can
mode 2.
awaken the receiver works in mode 2.
Mode 2
Power-savin
Mode 3
Sleep
UART is disabled. Wireless module works at
1,the transmitter must
WOR mode (wake on radio). It will open the
works in mode 1
UART and transmit data after receive the
2,transmitting
wireless data.
allowed in this mode
not
Parameter setting.
3.1 Mode switch
No.
is
E32-TTL-100
Remarks
The user can decide the operating mode by the combination of M1 and M0. The two GPIO of MCU can
be used to control the mode-switch. After modifying M1 or M0, it will start to work in new mode 1 ms
later if the module is free. If there are any serial data that is yet to finish wireless transmitting, it will
start to work in new mode after the UART transmitting finishing. After the module receives the wireless
data & transmits the data through serial port, it will start to work in new mode after the transmitting
finishing. Therefore, the mode-switch is only workable when AUX outputs 1, otherwise it will delay.
For example, in mode 0 or mode 1, if the user inputs massive data consecutively and switches
operating mode at the same time, the mode-switch operation is invalid. New mode checking can only
be started after all the user’s data process completing. It is recommended that after check AUX
pinout status and wait 2ms after AUX outputs high level, then switch the mode.
If the module switches from other modes to stand-by mode, it will be work in stand-by mode only
after all the remained data process completing. The feature can be used to save power consumption.
For example, the transmitter works in mode 0, after the external MCU transmits data “12345”. It can switch to
sleep mode immediately but not wait the rising edge of the AUX pin, also the user’s main MCU will go
dormancy immediately. Then the module will transmit all the data through wireless transmission & go
dormancy 1ms later automatically. Which reduce MCU working time & save power.
Likewise, this feature can be used in any mode-switch. The module will start to work in new mode
within 1ms after completing present mode task, which enable the user to omit the procedure of AUX
inquiry and switch mode swiftly. For example, when switch from transmitting mode to receiving mode,
the user MCU can go dormancy in advance of mode-switch, using external interrupt function to get
AUX change so that the mode-switch can be done.
This operation is very flexible and efficient. It is totally designed on the basis of the user MCU’s
convenience, at the same time reduce the whole system work load as much as possible, increase the
efficiency of system work and reduce power consumption.
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3.2 Normal mode（Mode 0）
Website： www.cdebyte.com
E32-TTL-100
When M1 = 0 & M0 = 0, module works in mode 0
The module can receive the user data from serial port, and transmit wireless data
package which length is 58 bytes. When the data inputted by user is up to 58 byte, the
module will start wireless transmission. During which the user can input data
continuously for transmission.
When the required transmission bytes is less than 58 byte, the module will wait 3-byte
time and treat it as data termination unless continuous data inputted by user. Then the
Transmitting
module will transmit all the data through wireless channel.
When the module receives the first data packet from user, the AUX outputs low level.
After the module transmit all the data into RF chip & start transmission, AUX outputs
high level.
At this time, it means that the last wireless data package transmission has started, which
enable the user to input another 512 bytes continuously. The data package transmitted
from the module works in mode 0 can only be received by the module works in mode 0
or 1.
The module keeps the wireless receive function on, it can receive the data packet
transmitted from the module works in mode 0 & mode 1. After receiving the data
Receiving
packet, the AUX outputs low level, 5ms later the module starts to transmit wireless data
through serial port TXD pin. After all the wireless data have been transmitted via serial
port, the module AUX outputs high level.
3.3 Wake-up mode（Mode 1）
E32-TTL-100
When M1 = 0 & M0 = 1, module works in mode 1.
The condition of data packet transmission & AUX function is the same as mode 0. The
only difference is that the module will add preamble code before each data packet
Transmitting
automatically. The preamble code length depends on the wake-up time set in the user
parameters. The purpose of the preamble code is waking up the receiving module works
in mode 2. Therefore, the data package transmitted from mode 1 can be received by
mode 0, mode1 and mode 2.
Receiving
The same as that in mode 0.
3.4 Power-saving mode（Mode 2）
E32-TTL-100
When M1 = 1 & M0 = 0, module works in mode 2.
Transmitting
UART is closed, the module cannot receive any serial port data from outside MCU. Hence
the module works in this mode does not have the function of wireless transmission.
In mode 2, it is required the date transmitter works in mode 1.
The wireless module monitors the preamble code at regular time. Once it gets the
preamble code, it will remain as receive status and wait for the completion of the entire
Receiving
valid date package receives. Then the module lets the AUX outputs low level, 5ms later
opens the serial port to transmit received wireless data through TXD. Finally AUX outputs
high level after process completing.
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The wireless module stays in “power-saving – monitoring” working status (polling). By
setting different wake-up time, the module can have different receive response delay (2s
maximum) and average power consumption (30uA minimum). The user needs to achieve
a balance between communication delay time & average power consumption.
3.5 Sleep mode (Mode 3）
E32-TTL-100
When M1=1,M0=1,module works in mode 3
Transmitting
N/A
Receiving
N/A
This mode can be used for parameter setting. It uses serial port 9600 & 8N1 to set
Parameter
module working parameters through specific instruction format. (pls refer to parameters
setting
setting for details)
When the mode changes from stand-by mode to others, the module will reset its
Notes
parameters, during which the AUX keeps low level and then outputs high level after reset
completing. It is recommended to check the AUX rising edge for user.
3.6 Quick communication test
E32-TTL-100
Steps
Operation
Plug mode-select jumper in the USB test board (M1 = 0，M0 = 0), make the module work in
Plug the USB test board (E15-USB-T2) into computer, make sure the driver is installed correctly.
mode 0.
Optional power supply, 3.3V or 5V.
Operate AccessPort software and select the correct serial port code. See figure 7.
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.4．Instruction format
E32-TTL-100
In sleep mode（mode 3：M1=1, M0=1）, it supports below instructions on list.
(Only support 9600 and 8N1 format when setting)
No.
Instruction format
Illustration
C0 + 5 bytes working parameters are sent in hexadecimal format.
C0 + working parameters
6 bytes in total and must send in succession. ( Save the parameters
when power-down )
C1
C1
Three C1 are sent in hexadecimal format. The module returns the
C1
saved parameters and must send in succession.
C2 + 5 bytes working parameters are sent in hexadecimal format.
C2 + working parameters
6 bytes in total and must send in succession. ( Not save the
parameters when power-down )
C3
C3
C3
C4
C4
C4
Three C3 are sent in hexadecimal format. The module returns the
version information and must send in succession.
Three C4 are sent in hexadecimal format. The module will reset
one time and must send in succession.
4.1 Default parameter
E32-TTL-100
Default parameter values：C0 00 00 1A 17 44
Model
Frequency
Address
Channel
Air data rate
Baud rate
Parity
E32-TTL-100
434MHz
0x0000
0x17
2.4kbps
9600
8N1
4.2 Parameter setting instruction
E32-TTL-100
The difference between C0 command and C2 command is that C0 command will write parameters into the
internal flash memory and can be saved when power down, while C2 command cannot be saved when power
down, because C2 command is temporarily mend instruction.
C2 is recommended for the occasion that need to change the operating parameters frequently,
Like C2 00 00 1A 17 44.
No.
Item
HEAD
Description
Remark
Fix 0xC0 or 0xC2, it means this frame
Must be 0xC0 or 0xC2
data is control command
C0: Save the parameters when power-down
C2: Not save the parameters when
power-down
ADDH
High address byte of module
00H-FFH
（the default 00H）
ADDL
Low address byte of module
00H-FFH
（the default 00H）
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SPED
Rate parameter，including UART baud
rate and air date rate
7，6

UART mode can be different between
communication parties
UART parity bit
00：8N1（default）
01：8O1
10：8E1
11：8N1（equal to 00）
------------------------------------------
-----------------------------------------------
5，4，3

TTL UART baud rate（bps）
001：2400bps
UART baud rate can be different
between communication parties
000：1200bps

The UART baud rate has nothing to do
010：4800bps
with wireless transmission parameters
011：9600bps（default）
& won’t affect the wireless transmit /
100：19200bps
receive features.
101：38400bps
110：57600bps
111：115200bps
------------------------------------------
----------------------------------------------
2，1，0

Air date rate（bps）
The lower the air date rate, the longer
000：0.3Kbps
the transmitting distance,
001：1.2Kbps
anti-interference performance and
010：2.4Kbps（default）
longer transmitting time
011：4.8Kbps

better
The air date rate must keep the same
for both communication parties.
100：9.6Kbps
101：19.2Kbps
110：19.2Kbps
111：19.2Kbps
CHAN
7，6，5： N/A

------------------------------------------
-------------------------------------------------
4-0：Communication channel, default
0(recommended)
00H-1FH
17H（434MHz）
OPTION
7，
Fixed transmission（similar to

In fixed transmission mode, the first
three bytes of each user's data frame
MODBUS）
0： Transparent transmission
can be used as high/low address and
mode（default）
channel. The module changes its
1： Fixed transmission mode
address and channel when transmit.
And it will revert to original setting
after complete the process.
------------------------------------------
-----------------------------------------------

IO drive mode(the default 1)
1：TXD and AUX push-pull
outputs,
0：TXD、AUX open-collector
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pull-up resistor. It also increases the
level’s adaptability in case of open
RXD pull-up inputs
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This bit is used to the module internal
drain. But in some cases, it may need
external pull-up resistor.
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outputs,
RXD open-collector inputs
----------------------------------------
-----------------------------------------------
5，4，3

wireless wake-up time（for the
The transmit & receive module work in
receiver, it means the monitor interval
mode 0, whose delay time is invalid &
time ,while for the transmitter it means
can be arbitrary value.
continuously sending preamble code

The transmitter works in mode 1 can
transmit the preamble code of the
time.）
corresponding time continuously.
000：250ms（default）
001：500ms

When the receiver works in mode 2,
010：750ms
the time means the monitor interval
011：1000ms
time (wireless wake-up). Only the data
100：1250ms
from transmitter that works in mode 1
101：1500ms
can be received.
110：1750ms

The wake-up time set by transmitter
cannot be less than the monitor
111：2000ms
interval time of receiver; otherwise, it
may lead to data loss. In case of
two-way communication, both parties
should keep the wake-up time the
same.

The longer the wake-up time, the
lower the average receive current
consumption.
-----------------------------------------
------------------------------------------------
2，

FEC switch
After turn off FEC, the actual data
0：Turn off FEC
transmission rate increases while
1：Turn on FEC（Default）
anti-interference ability decreases.
Also the transmission distance is
relatively short.

Both communication parties must
keep on the same pages about
turn-on or turn-off FEC.
-----------------------------------------
-----------------------------------------------
1, 0

transmission power
The external power must make sure
the ability of current output more than
(approximation)
200mA and ensure the power supply
ripple within 100mV.

Low power transmission is not
recommended due to its low power
supply efficiency.
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For example: The meaning of No.3 "SPED" byte：
The binary bit of the byte
The specific value
(user configures)
Meaning
UART parity bit 8N1
Corresponding hexadecimal
UART baud rate is 9600
4.3 Reading operating parameters
Instruction format
Air date rate is 2.4k
E32-TTL-100
Description
In sleep mode（M0=1，M1=1），
User gives the module instruction (HEX format): C1 C1 C1,
C1+C1+C1
Module returns the present configuration parameters.
For example, C2 00 00 1A 17 44.
4.4 Reading version number
Instruction format
E32-TTL-100
Description
In sleep mode（M0=1，M1=1）,
User gives the module instruction (HEX format): C3 C3 C3,
Module returns its present version number, for example C3 32 xx yy.
C3+C3+C3
32 here means the module model (E32 series); xx is the version number and yy
refers to the other module features.
4.5 Reset instruction
E32-TTL-100
Instruction format
Description
In sleep mode（M0=1，M1=1）,
User gives the module instruction (HEX format): C4 C4 C4, the module resets for
one time.
C4+C4+C4
During the reset process, the module will conduct self-check, AUX outputs low
level. After reset completing, the AUX outputs high level, then the module starts to
work regularly which the working mode can be switched or be given another
instruction.
Professional R&D RF Module
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E32-TTL-100 Datasheet V1.0
Chengdu Ebyte Electronic Technology Co., Ltd.
Website： www.cdebyte.com
Purchase the sample：http://www.aliexpress.com/store/2077046
.5．Parameter setting
E32-TTL-100
Step
Operation
Install Driver
Please install the USB adapter driver (CP2102).
Pull out the
Pull the M0、M1 jumper out, see figure 9
Description
jumper
3.3V or 5V are available for jumper.
Connect to
Connect the module with USB adapter.
module
Connect to the USB interface of PC.
Operate the parameter setting software, choose corresponding serial number and
Open serial
press the “Open CommPort” button.
port
Please choose other serial numbers until open successfully.
Press“Press to Read”button，the interface will be as figure 9
Interface
If failed, please check if the module is in mode 3, or the driver has been installed or
not.
Input
Please adjust the parameter as your request according to the corresponding
parameter
setting, then click “Write” button, write the new parameter to the module
Please operate the “Fifth step” if you need to reconfigure,
Complete the o
if the configuration is completed,
peration.
Please click "close UART" and then take off the module.
Commands
Parameter configuration is also available for MCU (in mode 3).
Configuration
434MHz
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2.4G、915M、868M、780M、490M、434M、315M、230M、170M Wireless Module
The copyright and the product has the Chengdu Ebyte Electronic Technology Co., Ltd. All
E32-TTL-100 Datasheet V1.0
Chengdu Ebyte Electronic Technology Co., Ltd.
Purchase the sample：http://www.aliexpress.com/store/2077046
Website： www.cdebyte.com
FCC Statement
This device 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.
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the
equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to
radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following
measures:
-- Reorient or relocate the receiving antenna.
-- Increase the separation between the equipment and receiver.
-- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
-- Consult the dealer or an experienced radio/TV technician for help.
FCC Radiation Exposure Statement
This modular complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located
or operating in conjunction with any other antenna or transmitter.
If the FCC identification number is not visible when the module is installed inside another device, then the outside of the device into which the
module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following:
“Contains Transmitter Module FCC ID: 2ALPH-E32-TTL-100 Or Contains FCC ID: 2ALPH-E32-TTL-100”
when the module is installed inside another device, the user manual of this device must contain below warning statements;
1. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference.
(2) This device must accept any interference received, including interference that may cause undesired operation.
2. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the
equipment.
The devices must be installed and used in strict accordance with the manufacturer's instructions as described in the user documentation that
comes with the product
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2.4G、915M、868M、780M、490M、434M、315M、230M、170M Wireless Module
The copyright and the product has the Chengdu Ebyte Electronic Technology Co., Ltd. All
E32-TTL-100 Datasheet V1.0
Chengdu Ebyte Electronic Technology Co., Ltd.
Purchase the sample：http://www.aliexpress.com/store/2077046
.6．About us
Website： www.cdebyte.com
E32-TTL-100
Chengdu Ebyte Electronic Technology Co., Ltd is a high-tech company, focus on wireless transmission.
Our company owns a number of independent research & development products and obtain unanimously
approved customers. With powerful R&D team, our company can provide customers with perfect After-sales
service and technical assistance.
【Website】：www.cdebyte.com 1111
【Aliexpress】：http://www.aliexpress.com/store/2077046
【Address】： Innovation Center D347,4# XI-XIN road, High-tech district(West),Chengdu, Sichuan, China
【Contact person】：chenfang@cdebyte.com
Elaine
【Contact person】：fanjuan@cdebyte.com
Maggie
【Technical support】：support@cdebyte.com
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