Chengdu Ebyte Electronic Technology Co., Ltd.
E29-400TXXX product data sheet
Copyright ©2012–2023
，
Chengdu Ebyte Electronic Technology Co.,Ltd.
21
table
table
AT+DEVTYPE=?
Query module model
DEVTYPE=E29-400T22S/D
Return module model
AT+FWCODE=?
Query firmware code
FWCODE=7432-0-10
Return firmware code
AT+UART=?
Query baud rate and parity AT+UART=3,0
Return baud rate and
parity: 9600
，
8N0
AT+RATE=?
Query air data rate
AT+RATE=7
Return air data rate 16.4K
AT+PACKET=?
Query packet length
AT+PACKET=0
Return
packet
length
240bytes
AT+WOR=?
Query WOR roles and
cycle
AT+WOR=0,3
Return WOR receiver
，
cycle 2000ms
AT+POWER=?
Query TX power
AT+POWER=0
Return TX power 22dBm
AT+TRANS=?
Query transmission mode
AT+TRANS=1
Return fixed transmission
mode
AT+ROUTER=?
Query repeater mode
AT+ROUTER=1
Return repeater mode
AT+DRSSI=?
Query RSSI output
AT+DRSSI=1
Return
channel
RSSI
function is turned on
AT+LDO=?
Query RF Power Mode
AT+LDO=0
Return DCDC RF Power
Mode
AT+ADDR=?
Query module address
AT+ADDR=1234
Return module address
1234
AT+CHANNEL=?
Query module working
channel
AT+CHANNEL=23
Return working frequency
433.125M
AT+NETID=?
Query network ID
AT+NETID=2
Return network ID 2
AT+KEY=?
Query module key
AT+KEY=0
（
unreadable
）
Return module key 0
AT+DELAY=?
Query WOR delay sleep
time
AT+DELAY=1000
Return WOR delay sleep
time 1000ms
8.2 AT parameter analysis
When the serial port receives a correct command, the serial port will return "command=OK", otherwise it will
return "=ERR"
Command parameter
Parameter meaning
Baud
（
serial port baud rate
）
0:1200
1:2400
2:4800
3:9600
4:19200
5:38400
6:57600
7:115200
Parity
（
serial port parity
）
0:8N1
1:8O1
2:8E1
3:8N1
Rate
（
air data rate
）
0:2.4K
1:2.4K
2:2.4K
3:4.6K
4:8.2K
5:4.8K
6:16.4K
7:16.4K
Packet
（
packet length
）
0:240
1:128
2:64
3:32
Role
（
WOR role
）
0: receiver
1: transmitter
Period
（
WOR cycle
）
0:500ms
1:1000ms 2:1500ms 3:2000ms
4:2500ms 5:3000ms 6:3500ms 7:4000ms
Power
（
TX power
）
0:22dBm
1:20dBm
2:17dBm
3:14dBm
Mode
（
transmission mode
）
0: transparent
1: fixed
