GSM Response Issue

IoT Modules GSM Module
1

Hello Everyone,
Please help me I am new to the forum. I’m using the ESP32 controller and M95 GSM module. I’m connecting the esp32 to M95 via the UART port. The issue is when I sent the AT command from esp32 to GSM, it communicate to the GSM module but the esp32 simply received the cmd that I have sent. When I tried the GSM module with Q Navigator via the Main port using RS232, it respond to my AT cmd’s but when I connect to the esp32 it simply received the cmd not the response of that command.

Guys, please help me to do this

2

Dear Saran
Make sure you have sent \r\n(carriage return and line feed) after the AT command
For Ex: “AT\r\n”

1 Like
3

Thank U. Now its working