USR IOT SERVICE AND SUPPORT

SMS DTU transparent transmission mode setting method

Set SMS transparent transmission mode two major commands

AT+CIMOD=”MOD”<CR><LF>

Configuration module operating modes: MOD said operating mode, 0 means transparent transmission mode, 1 serial command mode, two said AT command mode, 3 httpsD Client mode, four said messaging transparent transmission mode.

Configuration command: AT + CIMOD = “4”

AT+CIPNUM=PHNUM<CR><LF>

Set SMS transparent transmission destination number, destination number PHNUM to send text messages.

For example: AT + CIPNUM = 10086 <CR> <LF> set the destination number is 10086

1:Software setup steps

2:GPRS connected to the computer serial port

3:Mobile phones to receive and send text messages