Ebyte E29-T Series User manual

E29-T Series User Manual
PAN3031 433/470MHz 160mW Wireless Module

目录
Disclaimer and Copyright Notice ...................................................................................................................................4
Chapter 1 Overview .....................................................................................................................................................5
1.1 Introduction ...................................................................................................................................................... 5
1.2 Features .............................................................................................................................................................5
1.3 Application ....................................................................................................................................................... 6
Chapter 2 Specification and Parameter ....................................................................................................................... 6
2.1 RF parameters ...................................................................................................................................................6
2.2 Electrical parameters ........................................................................................................................................ 7
2.3 Hardware Parameters ....................................................................................................................................... 7
Chapter 3 Size and Pin Definition ...............................................................................................................................8
3.1 E29-400T22S Dimension and Pin definition ................................................................................................8
3.2 E29-400T22D Dimension and Pin definition ............................................................................................... 9
Chapter 4 Recommended Connection Diagram ........................................................................................................10
Chapter 5 Function Description ................................................................................................................................ 11
5.1 Fixed Transmission ........................................................................................................................................ 11
5.2 Broadcasting Transmission ............................................................................................................................ 11
5.3 Broadcasting Address .....................................................................................................................................12
5.4 Listening Address ...........................................................................................................................................12
5.5 Module Reset ..................................................................................................................................................12
5.6 AUX Description ............................................................................................................................................12
5.6.1 Indication of UART Output ................................................................................................................ 12
5.6.2 Indication of Wireless Transmitting .................................................................................................13
5.6.3 The module is being configured ..........................................................................................................13
5.6.4 Notes for AUX .................................................................................................................................... 13
Chapter 6 Working Mode .......................................................................................................................................... 14
6.1 Notes for Mode Switching ............................................................................................................................. 14
6.2 Normal mode（Mode 0）.......................................................................................................................... 15
6.3 WOR mode（Mode 1）............................................................................................................................. 15
6.4 Configuration mode（Mode 2）................................................................................................................ 15
6.5 Deep sleep mode（Mode 3）.....................................................................................................................16
Chatper 7 Register read and write control ................................................................................................................ 16
7.1 Command format ............................................................................................................................................16
7.2 Register description ........................................................................................................................................17
7.3 Factory default parameter ...............................................................................................................................19
Chatper 8 AT Command ............................................................................................................................................ 20
8.1 AT command table .......................................................................................................................................20
8.2 AT parameter analysis ................................................................................................................................. 21
8.3 IAP upgrade Notes ...................................................................................................................................... 22
Chatper 9 Repeater networking mode .......................................................................................................................22
Chapter 10 Configuration instructions on computer .................................................................................................23
Chapter 11 Hardware design ..................................................................................................................................... 24
Chapter 12 FAQ .........................................................................................................................................................25
12.1 Communication range is too short ............................................................................................................ 25

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12.2 Module is easy to be damaged ................................................................................................................ 25
12.3 BER(Bit Error Rate) is high ......................................................................................................................26
Chapter 13 Welding Work Instructions ........................................................................................................................ 27
13.1 Reflow soldering temperature ...................................................................................................................... 27
13.2 Reflow soldering curv ............................................................................................................................... 28
Chatper 14 Retaled series .......................................................................................................................................... 28
Chapter 15 Antenna recommendation .......................................................................................................................29
15.1 Antenna recommendation ..........................................................................................................................29
Chapter 16 Bulk Packing ...........................................................................................................................................30
15.1 E29-400T22S bulk packing .......................................................................................................................30
15.1 E29-400T22D bulk packing .........................................................................................................................30
Revision history ............................................................................................................................................................31
About us ........................................................................................................................................................................31

Chengdu Ebyte Electronic Technology Co., Ltd. E29-400TXXX product data sheet
Copyright ©2012–2023，Chengdu Ebyte Electronic Technology Co.,Ltd.
Disclaimer and Copyright Notice
The information in this document, including the URL address for reference, is subject to change
without notice. The document is provided "as is" without any guarantee responsibility, including any
guarantee for marketability, suitability for a specific purpose, or non-infringement, and any guarantee
for any proposal, specification or sample mentioned elsewhere. This document does not bear any
responsibility, including the responsibility for infringement of any patent rights caused by the use of
the information in this document. This document does not grant any license for the use of intellectual
property rights in estoppel or other ways, whether express or implied.
The test data obtained in the article are all obtained by the Ebyte laboratory, and the actual
results may vary slightly.
We hereby declared that all brand names, trademarks and registered trademarks mentioned in
this document are the property of their respective owners.
The final interpretation right belongs to Chengdu Ebyte Electronic Technology Co., Ltd.
Notice :
Due to product version upgrades or other reasons, the contents of this manual may be changed. Ebyte Electronic
Technology Co., Ltd. reserves the right to modify the contents of this manual without any hint or noticet. This
manual is only used as a guide. Chengdu Ebyte Electronic Technology Co., Ltd. makes every effort to provide
accurate information in this manual. However, we does not guarantee that the contents of the manual are
completely free of errors. All statements, information and suggestions in this manual do not constitute any express
or implied guarantee.

成都亿佰特电子科技有限公司 E29-T 系列用户使用手册
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5
Chapter 1 Overview
1.1 Introduction
Based on PANCHIP’s RF chip PAN3031, the E29-T series products are a new generation of wireless serial port
module (UART) independently developed by Chengdu Ebyte Electronics Co., Ltd. It’s with a variety of transmission
methods, working in the frequency band 410.125 ～493.125MHz (default 433.125MHz), and using industrial-grade
high-precision 32MHz crystal oscillator.
The E29-T series adopts a new generation of ChirpIoT™ spread spectrum technology, supports half-duplex wireless
communication, has the characteristics of high anti-interference and high sensitivity; It also has air wake-up, wireless
configuration, automatic relay, communication key, AT Command, IAP upgrade and other functions; This series of
modules is mainly for application in smart home, industry, scientific research, medical and short-distance wireless
communication equipment. It supports packet length setting, and customized development service is also available.
图1：E29-400T22S 图2：E29-400T22D
1.2 Features
Support AT command, more convenient for use.
Support IAP upgrade, more convenient to update firmware;
ChirpIoT™-based modulation method brings longer communication distance and stronger anti-interference ability;
Support automatic relay networking, multi-level relay is suitable for ultra-long-distance communication, and
multiple networks run simultaneously in the same area;
User can set the communication key by himself and the key cannot be read by others. It greatly improving the
confidentiality of user data;
Support RSSI signal strength indicator function for evaluating signal quality, improving communication network,
and ranging;
Support wireless parameter configuration, send command packets wirelessly, remotely configure or read wireless
module parameters;
Support wake-up over the air, that is ultra-low power consumption, suitable for battery-powered applications;
Support point to point transmission, broadcast transmission, and channel listening;
Support deep sleep, the power consumption of the whole module is about 2uA in this mode;
Support global license-free ISM 433MHz frequency band, support 470MHz meter reading frequency band;

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Under ideal conditions, the communication distance can reach 5km;
The parameters are saved after power-off, and the module will work according to the set parameters after power-on;
Efficient watchdog design, once an exception occurs, the module will automatically restart and continue to work
according to the previous parameter settings;
Support 2.4k～16.4kbps air data rate transmission;
Support 2.6～5.5V power supply, power supply greater than 5V guarantees the best performance;
Industrial standard design, supporting long-term use at -40～+85℃;
1.3 Application
Home security alarm and remote keyless entry;
Smart home and industrial sensors;
Wireless alarm security system;
Building automation solutions;
Wireless industrial-grade remote control;
Health care products;
Advanced Meter Reading Architecture (AMI);
Chapter 2 Specification and Parameter
2.1 RF parameters
RF parm
Unit
Model No.
Remark
E29-400T22S
E29-400T22D
Max. Tx
power
dBm
21.5～22
21.5～22
-
Receiving
sensitivity
dBm
-125
-125
Air data rate 2.4kbps
Tested range
M
5Km
Test condition：clear and
open area, antenna gain:
5dBi，antenna placement
height: 2.5m，air data rate:
2.4kbps
Operating
frequency
MHz
410.125～493.125
410.125～493.125
Support ISM frequency
band
Air data rate
bps
2.4K～16.4K
To control via user’s
program
Blocking
Power
dBm
10
Less chance of burning
when used at close range

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2.2 Electrical parameters
Electrical parm
Uni
t
Model No.
Remark
E29-400T22S
E29-400T22D
Operating voltage
V
2.6～5.5
2.6～5.5
≥5V ensures output power, and it
may be burning down over 5.5V.
Communication level
V
3.3V
For 5V TTL, it may be burning
down
Power
consumption
TX current
mA
110
110
Instant power consumption
RX current
mA
15
15
15mA @ DCDC mode ，20mA @
LDO mode
Sleep
current
uA
2
2
software shutdown
Temperature
Operating
temperature
℃
-40～+85
Industrial grade
Storage
temperature
℃
-40～+85
Industrial grade
2.3 Hardware Parameters
Hardware parm
Model No.
Remark
E29-400T22S
E29-400T22D
Chipset
PAN3031
-
Crystal frequency
32MHz
Industrial grade high precision crystal
oscillator
Modulation
ChirpIoT™
new-generation ChirpIoT™
modulation technology
Interface
1.27mm Stamp hole
2.54mm header
-
Communication
Interface
UART serial port
TTLlevel
TX packet length
240 Btye
Subpackage 32/64/128/240 bytes can
be sent by command setting
Encapsulation
SMD
DIP
-
Cache capacity
700 Btye
-
TX packet
length
Btye
240
Subpackage 32/64/128/240
bytes can be sent by
command setting

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Antenna interface
IPEX/Stamp hole
SMA-K
Equivalent impedance about 50Ω
Size
20 * 16 mm
36*21mm
±0.1mm
Product Weight
2.37g
6.24g
±0.05g
Chapter 3 Size and Pin Definition
3.1 E29-400T22S Dimension and Pin definition
Pin No.
Pin Name
Pin Direction
Pin Function
1
GND
-
Module ground
2
GND
-
Module ground
3
GND
-
Module ground
4
GND
-
Module ground
5
M0
Input
（pull-up）
Work with M1 to decide 4 working modes of module (not float, if not
used, could be grounded).
6
M1
Input
（pull-up）
Work with M0 to decide 4 working modes of module (not float, if not
used, could be grounded).
7
RXD
Input
TTL UART inputs, connects to external TXD output pin.

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8
TXD
Output
TTL UART outputs, connects to external RXD input pin.
9
AUX
Output
Used to indicate the working status of the module;
For user to wakes up the external MCU and it outputs low level during
power-on self-check initialization; (can be left floating)
10
VCC
-
Module power positive reference, voltage range: 2.6～5.5V DC
11
GND
-
Module ground
12
RST
-
Module Reset pin
13
GND
-
Module ground
14
SWDIO
-
-
15
VDD
-
3.3V
16
RS485
-
RS485 enable
17
PA-RXEN
-
NC
18
PA-TXEN
-
NC
19
GND
-
Module ground
20
GND
-
Module ground
21
ANT
-
Antenna
22
GND
-
Module ground
3.2 E29-400T22D Dimension and Pin definition

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Pin No.
Pin Name
Pin Direction
Pin Function
1
M0
Input
（pull-up）
Work with M1 to decide 4 working modes of module (not float, if not
used, could be grounded).
2
M1
Input
（pull-up））
Work with M0 to decide 4 working modes of module (not float, if not
used, could be grounded).
3
RXD
Input
TTL UART inputs, connects to external TXD output pin.
4
TXD
Output
TTL UART outputs, connects to external RXD input pin.
5
AUX
Output
Used to indicate the working status of the module;
For user to wakes up the external MCU and it outputs low level during
power-on self-check initialization; (can be left floating)）
6
VCC
Power supply
Module power positive reference, voltage range: 2.6～5.5V DC
7
GND
Power supply
Module ground
8
Fixed hole
Fixed hole （connect with module GND）
9
Fixed hole
Fixed hole （connect with module GND）
10
Fixed hole
Fixed hole （connect with module GND）
Chapter 4 Recommended Connection Diagram
No.
Brief instructions for the connection between module and MCU (Take STM8L as an example)
1
The wireless serial port module is TTL level, please connect with TTL level MCU
2
For some 5V microcontrollers, it may be necessary to add 4-10K pull-up resistors to the TXD and AUX
pins of the module.

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Chapter 5 Function Description
5.1 Fixed Transmission
5.2 Broadcasting Transmission

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5.3 Broadcasting Address
For Example: Set the address of module A to 0xFFFF and the channel to 0x04.
When module A is used as a transmitter (same mode, transparent transmission mode), all receiving modules under
the 0x04 channel can receive data to achieve the purpose of broadcasting.
5.4 Listening Address
For example: Set the address of module A as 0xFFFF, and the channel as 0x04;
When module A is the receiver, it can receive the data sent from all modules under channel 0x04, the purpose of
listening is realized.
5.5 Module Reset
After the module is powered on, AUX will immediately output low level, perform hardware self-check, and set the
working mode according to user parameters;
During this process, AUX keeps low level, and AUX outputs high level after completion, and starts to work
normally according to the working mode formed by M1 and M0; Therefore, the user needs to wait for the rising
edge of AUX as the starting point for the module to work normally.
5.6 AUX Description
AUX Pin can be used as indication for wireless TX &RX buffer and self-check.
It can indicate whether there is data not transmitted via wireless way, or whether the received data has not been sent
through UART, or whether the module is still in the process of self-check initialization.
5.6.1 Indication of UART Output
To wake up external MCU;

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5.6.2 Indication of Wireless Transmitting
Buffer empty: the data in the 700byte buffer in the module is written to the wireless chip (automatically
sub-packaging);
When AUX=1, if user continuously sends data less than 700 bytes, it won’t overflow;
When AUX=0, the buffer is not empty: It means data in the module's internal 700byte buffer has not been written to
the wireless chip and has not been transmitted. At this time, the module may be waiting for the end of user inputing
data (subject to timeout), or the module is going on with wireless sub-packet transmission. (下图中的 1000 需改为
700)
5.6.3 The module is being configured
Only happened when resetting or exiting sleep mode
5.6.4 Notes for AUX
No.
Notes for AUX

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1
For function 1 (5.6.1) & function 2 ( (5.6.2) mentioned above, the priority should be given to the one with low
level output, which means as long as any output low level condition is met, AUX will output low level; Only
when none of the output low level condition is met, AUX will outputs high level.
2
When AUX outputs low level, it means the module is busy & it won’t conduct working mode checking.
Within 1ms since AUX outputs high level, the module working mode switch will be completed.
3
After switching to new working mode, module will not work in the new mode immediately until AUX rising
edge lasts for 2ms.
If AUX is always at high level, then the mode switch will take effect immediately;
4
When the user switches to other working modes from mode 3 (sleep mode) or it is still in reset process, the
module will reset user parameters, during which AUX outputs low level.
5
Due to the characteristics of the ChirpIoT™ modulation method, the information transmission delay is much
longer than FSK. For example, at an air data rate of 1.2kbps, the transmission delay of 100 bytes is about 1.5
seconds.
To avoid communication abnormalities caused by data accumulation and data loss, customer is suggested not
to transmit large amounts of data at low air data rate.
Chapter 6 Working Mode
There are four working modes, which are set by M1 and M0, the details are as follows:
Mode（0-3）
M1
M0
Description
Remark
0 Transmission
Mode
0
0
UART and wireless channel are open, transparent transmission is
on
Support over-the-air
configuration via special
command
1 WOR Mode
0
1
Can be set as WOR Transmitter or WOR Receiver
Support wake up over the
air
2 Configuration
Mode
1
0
Users can access the registers through the serial port to control the
working status of the module
3 Deep Sleep
Mode
1
1
Module goes to sleep
6.1 Notes for Mode Switching
No.
Remark
1
Users can combine high and low levels with M1 and M0 to determine the module’s working mode. Two GPIOs of the
MCU can be used to control mode switching;
After changing M1 and M0: If the module is idle, after 1ms, it can start working according to the new mode;
If there is serial port data of the module not been transmitted through the wireless, the new working mode can be
switched after the transmission is completed;
If the module receives the wireless data and transmits the data through the serial port, it needs to finish transmission
before switching to the new working mode;
Therefore, mode switching can only be valid when AUX output is 1, otherwise it will delay switching
2
For example, users continuously inputs a large amount of data and simultaneously performs mode switching. At this
time, the switching mode operation is invalid; the module will process all the user data before performing the new mode
detection;
Therefore, the general recommendation is to detect the output state of the AUX pin and switch mode after 2ms when
AUX outputs high level.

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3
When the module is switched to sleep mode from other modes, if there is data not been processed yet, the module will
process these data (including receiving and sending) before entering sleep mode. This feature can be used for fast sleep
to save power;
For example, the transmitter module works in mode 0, the user transmits the serial port data "12345". At the time, user
does need to wait for the AUX pin to be idle (high level), user can directly switch the module to sleep mode and make
user’s main MCU immediately sleep, then the module will automatically transmit the user data through the wireless, and
will enters sleep mode within 1ms automatically; This will saves MCU's working time and reduces its power
consumption.
4
Similarly, any mode switching can use this feature. After the module processes the event in the current mode, it will
automatically enter the new mode within 1ms; This saves the user’s work of querying AUX and it achieves the purpose
of fast switching;
For example, switching from the transmit mode to the receive mode; the user MCU can also enter sleep before the mode
switch, and use the external interrupt function to acquire the AUX change, thereby performing mode switching.
5
This operation mode is very flexible and efficient. It is designed according to the user's MCU's operation convenience,
and it can reduce the workload of the entire system as much as possible, improving system efficiency, and reducing
power consumption as well..
6.2 Normal mode（Mode 0）
Type
When M0 = 0，M1 = 0，module works in Mode 0
Transmitting
Users can input data through the serial port and the module will start wireless transmission.
Receiving
The module wireless receiving function is turned on, and after receiving the wireless data, it will be output through the serial
port TXD pin.
6.3 WOR mode（Mode 1）
Type
When M0 = 1，M1 = 0，module works in Mode 1
Transmitting
When defined as the transmitter, the wake-up code for a certain period of time will be automatically added before transmitting
Receiving
Data can be received normally, and the receiving function is equivalent to that in mode 0
6.4 Configuration mode（Mode 2）
Type
When M0 = 0，M1 = 1，module works in Mode 2
Transmitting
Wireless transmitting off, Automatically open during wireless configuration

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Receiving
Wireless receiving off, Automatically open during wireless configuration
Configuration
User can access registers to configure module operating status
6.5 Deep sleep mode（Mode 3）
Type
When M0 = 1，M1 = 1，module works in Mode 3
Transmitting
Unable to transmit wireless data
Receiving
Unable to receive wireless data
Note
When entering other modes from sleep mode, the module will reconfigure parameters. During the configuration process, AUX
stays in low level;
After completion of comfiguration, AUX will output a high level, so user is recommended to detect the rising edge of AUX.
Chatper 7 Register read and write control
7.1 Command format
In configuration mode (mode 2: M0 = 0, M1 = 1), the list of supported commands are as follows (only 9600, 8N1 format is
supported when setting)：
No.
Command format
Description
1
Set register
Command: C0+starting address+length+parameters
Response: C1+starting address+length+parameters
E.g 1: Configure Channel to be 0x09
command starting address length parameter
Send: C0 05 01 09
Return: C1 05 01 09
E.g 2: Configure module address (0x1234), network address (0x00), serial port (9600 8N1) and air
data rate (2.4K).
Send: C0 00 04 12 34 00 60
Return: C1 00 04 12 34 00 60
2
Read register
Command: C1+starting address+ length
Response: C1+starting address+length+parameters
E.g 1：Read channel
command starting address length parameter
Send: C1 05 01
Returen: C1 05 01 09
E.g 2: Read module address, network address, serial port and air data rate.
Send: C1 00 04
Return: C1 00 04 12 34 00 60
3
Set temporary
Command: C2+starting address+length+parameters

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registers
Response: C1+starting address+length+parameters
E.g 1: Configure Channel to be 0x09
command starting address length parameter
Send: C2 05 01 09
Return: C1 05 01 09
E.g 2: Configure module address (0x1234), network address (0x00), serial port (9600 8N1) and air
data rate (2.4K).
Send: C2 00 04 12 34 00 60
Return: C1 00 04 12 34 00 60
4
Wireless
configuration
Command: CF CF + normal command
Respond：CF CF + normal respond
E.g 1: Configure Channel to be 0x09 by wireless configuration
Command head command starting address length parameter
Send: CF CF C0 05 01 09
Returen: CF CF C1 05 01 09
E.g 2: Configure module address (0x1234), network address (0x00), serial port (9600 8N1) and air
data rate (2.4K) by wireless configuration.
Send: CF CF C0 00 04 12 34 00 60
Return: CF CF C1 00 04 12 34 00 60
5
Wrong format
Wrong format respond:
FF FF FF / “=ERR”
7.2 Register description
No.
Read
or
write
Name
Description
Remark
00H
Read/
Write
ADDH
ADDH（default 0）
High byte and low byte in the module address;
Note: When the module address is FFFF, it can be
used as the broadcast and listening address, that
is: the module will not perform address filtering.
01H
Read/
Write
ADDL
ADDL（default 0）
02H
Read/
Write
NETID
NETID（default 0）
Network address, used to distinguish the network.
When two or more modules need to communicate
with each other, their network address should be
the same.
03H
Read/
Write
REG0
7
6
5
UART Serial port rate（bps）
For the two modules communicating with each
other, their serial port baud rate can be different,
and their serial parity bit can also be different.
When transmitting large packets continuously,
users need to consider the data blocking and
possible data loss caused by the same baud rate.
It is generally recommended that both
communication parties have the same baud rate.
0
0
0
Serial port baud rate 1200
0
0
1
Serial port baud rate 2400
0
1
0
Serial port baud rate 4800
0
1
1
Serial port baud rate 9600
（default）
1
0
0
Serial port baud rate 19200
1
0
1
Serial port baud rate 38400
1
1
0
Serial port baud rate 57600
1
1
1
Serial port baud rate 115200
4
3
Serial parity bit
The communication parties can have different

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serial parity bit.
0
0
8N1（default）
0
1
8O1
1
0
8E1
1
1
8N1（equal to 00）
2
1
0
Wireless air data rate（bps）
The communication parties must have the same air
data rate.
The higher the air data rate is, the smaller the
delay in response, and the shorter the transmission
distance is.
0~4: BW = 250K
5~7: BW = 500K
0
0
0
Air data rate 2.4k（default）
0
0
1
Air data rate 2.4K
0
1
0
Air data rate 2.4K
0
1
1
Air data rate 4.6k
1
0
0
Air data rate 8.2k
1
0
1
Air data rate 4.8k
1
1
0
Air data rate 16.4k
1
1
1
Air data rate 16.4k
04H
Read/
Write
REG1
7
6
Sub packet setting
When the data sent is smaller than the sub packet
length, the serial output of the receiving end is an
uninterrupted continuous output.
When the data sent is larger than the sub packet
length, the serial port in receiving end will sub
packet the data and then output them.
0
0
240 bytes（default）
0
1
128 bytes
1
0
64 bytes
1
1
32 bytes
5
RF Power Mode
Users can change the RF power mode through AT
commands:
1. DCDC mode reduces power consumption by
sacrificing sensitivity;
2. LDO mode improves sensitivity by sacrificing
power consumption;
3. It is recommended to use DCDC mode for
battery-powered devices.
0
DCDC mode（default）
1
LDO mode
4
3
2
Reserve
1
0
Transmitting power
Power and current are nonlinear, and power
efficiency is highest at maximum power.
The current does not decrease in proportion to the
decrease in power.
0
0
22dBm（default）
0
1
20dBm
1
0
17dBm
1
1
14dBm
05H
Read/
Write
REG2
Channel control（CH）
0-83 represents a total of 84 channels
Actual Frequency= 410.125 + CH *1M
06H
Read/
Write
REG3
7
Enable RSSI
After enabled, when the module receives the
wireless data, it will follow an RSSI strength byte
after output via the serial port TXD
0
Disable（default）
1
Enable
6
Transmission mode
In Fixed point transmission mode, the module
recognizes the first three bytes of the serial data
as: address high + address low + channel and takes
it as the wireless transmitting target.
0
Transparent transmission mode（default）
1
Fixed point transmission mode
5
Repeater function
After the repeater function is enabled, if the target
address is not the module itself, the module will
forward it once.
In order to prevent data return-back, it is
0
Disable repeater function（default）
1
Enable repeater function

Chengdu Ebyte Electronic Technology Co., Ltd. E29-400TXXX product data sheet
Copyright ©2012–2023，Chengdu Ebyte Electronic Technology Co.,Ltd.
19
recommended to use it in conjunction with the
fixed-point transmission mode.
That is: the target address is different from the
source address.
4
Reserve
Reserve
0
Reserve
1
Reserve
3
WOR transceiver control
Below operation is valid for Mode 1 only；
1. In WOR receiving mode (as WOR receiver),
the delay time after wake-up can be modified. The
default time is 0;
2. To modify the delay time after wake-up, WOR
receiver needs to send the command C0 09 02 E8
03 in the configuration mode (C0 is writing
command, 09 is the starting address of the register,
02 is the length, 0x03E8 is the set delay, the
maximum delay FFFF is 65535ms, if the delay is
set to 0, the wake-up delay is turn off.)
3. Data can be sent within the delay.
0
WOR receiver（default）
Working in WOR listening mode, the listening
period is shown below (WOR period), which
can save a lot of power consumption.
1
WOR transmitter
The module receiving and transmitting
functions are turned on, and a wake-up code of
a period of time is added when transmitting
data.
2
1
0
WOR cycle time
Below description is valid for Mode 1 only；
Cycle time T = (1 + WOR) * 500ms,
max.4000ms, min.500ms;
The longer the cycle time T (WOR listening
interval period), the lower the average power
consumption, but the greater the data delay.
Both the transmitter and the receiver must be set
as the same cycle time T (very important).
0
0
0
500ms
0
0
1
1000ms
0
1
0
1500ms
0
1
1
2000ms
1
0
0
2500ms
1
0
1
3000ms
1
1
0
3500ms
1
1
1
4000ms
07H
Write
CRYPT_H
High byte of Key（default 0）
Write only, read returns 0
Used for user encryption to avoid interception of
wireless data over the air by similar modules.
The module will internally use these two bytes as
a calculation factor to do a transform encryption
processing for the wireless signal over the air..
08H
Write
CRYPT_L
Low byte of Key（default 0）
7.3 Factory default parameter
Item
Factory default parameter：C0 00 09 00 00 00 60 00 17 03 00 00
Model No
Frequency
Address
Channel
Air data rate
Baud rate
Parity format
Power
E29-400T22S
433.125MHz
0x0000
0x17
2.4kbps
9600
8N1
22dbm
E29-400T22D
433.125MHz
0x0000
0x17
2.4kbps
9600
8N1
22dbm

Chengdu Ebyte Electronic Technology Co., Ltd. E29-400TXXX product data sheet
Copyright ©2012–2023，Chengdu Ebyte Electronic Technology Co.,Ltd.
20
Chatper 8 AT Command
AT commands are used in configuration mode, there are three kinds of AT commands: command commands, setting
commands and query commands;
The user can query the AT command set supported by the module through "AT+HELP=?", and the baud rate
adopted by the AT command is 9600 8N0;
When the input parameter exceeds the range, it will be restricted. Please do not let the parameter exceed the range,
otherwise there will come unknown issues.
8.1 AT command table
Command commands
Description
Example
Example description
AT+IAP (Use with caution,
please refer to 8.3 IAP
Upgrade Notes for details)
Enter IAP upgrade mode
AT+IAP
Enter IAP upgrade mode
AT+RESET
Device restart
AT+RESET
Device restart
AT+DEFAULT
restore default settings
AT+DEFAULT
restore default settings
Setting commands
Description
Example
Example description
AT+UART=baud,parity
Set baud rate and parity
AT+UART=3,0
Set baud rate 9600，8N0
AT+RATE=rate
Set air data rate
AT+RATE=7
Set air data rate 16.4K
AT+PACKET=packet
Set packet length
AT+PACKET=0
Set packet length 240bytes
AT+WOR=role,period
Set WOR role and cycle
AT+WOR=0,3
Set as WOR receiver ，
cycle 2000ms
AT+POWER=power
Set TX power
AT+POWER=0
Set TX power: 22dBm
AT+TRANS=mode
Set transmission mode
AT+TRANS=1
Set as fixed transmission
mode
AT+ROUTER=router
Set repeater mode
AT+ROUTER=1
Set as repeater mode
AT+DRSSI=data_rssi
Turn on the RSSI output
AT+DRSSI=1
Receive data RSSI
function open
AT+LDO=ldo
RF LDO Power Mode
Switch
AT+LDO=1
Set RF LDO mode
AT+ADDR=addr
Set module address
AT+ADDR=1234
Set module address: 1234
AT+CHANNEL=channel
Set module working
channel
AT+CHANNEL=23
Set working frequency:
433.125M
AT+NETID=netid
Set network ID
AT+NETID=2
Set network ID: 2
AT+KEY=key
Set module key
AT+KEY=1234
Set module key: 1234
AT+DELAY=delay
Set WOR delay sleep time
AT+DELAY=1000
Set WOR delay sleep
time: 1000ms
Query commands
Description
Example
Example description
AT+HELP=?
Query the AT command
Return the AT command