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
