At Command; At Commands List - Ebyte E90-DTU User Manual

Chengdu Ebyte Electronic Technology Co.,Ltd.

9. AT command

AT instructions are used in configuration mode. AT instructions are divided into three categories: command

instruction, setting instruction and query instruction;
Users can go through the words " AT + HELP =?"Query to the AT instruction set supported by the module, the AT

instruction adopts the port rate of 9600 8N0;
When the input parameter exceeds the range, it will be limited. Please do not let the parameter exceed the range to

avoid the unknown situation.

9.1 AT commands list

Command instruction
AT + IAP (Use carefully, see
article 9.3 serial port upgrade
firmware considerations)
AT+RESET
AT+DEFAULT
Set instructions
AT+UART=baud,parity
AT+RATE=rate
AT+PACKET=packet
AT+WOR=role,period
AT+POWER=power
AT+TRANS=mode
AT+ROUTER=router
AT+LBT=lbt
AT+ERSSI=erssi
AT+DRSSI=data_rssi
AT+ADDR=addr
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Description
Enter the IAP upgrade
mode
Equipment restart
Configuration
parameters to restore the
default
And the device restarted
Description
Set the port rate and check
Set air rate
Set the length of the
package
Set the WOR roles and
cycles
Set the sending power
Set the send mode
Set relay mode
Set the Listen Before Talk
function switch
Set the ambient noise RSSI
switch
Sets the receiving data
RSSI switch
Set module address
Instance
AT+IAP
AT+RESET
AT+DEFAULT
Instance
AT+UART=3,0
AT+RATE=7
AT+PACKET=0
AT+WOR=0,3
AT+POWER=0
AT+TRANS=1
AT+ROUTER=1
AT+LBT=1
AT+ERSSI=1
AT+DRSSI=1
AT+ADDR=1234
E90-DTU(900SL33) User Manual
Example description
Enter the IAP upgrade
mode
Equipment restart
Configuration parameters to
restore the default
And the device restarted
Example description
Set the port rate
9600,8N0
Set the air rate to 16.4K
Set the packet to 240 bytes
Set to WOR receive for a
period of 2000ms
Set the transmission power
to be 33 dBm
Set to point mode
Set to the relay mode
Set on, refer to section 8.2
LBT enable for details
Set on, refer to section 8.2
RSSI environmental noise
function for detail
The receive data
function is turned on
Set the module address to
1234
to
RSSI
22