Thank you for your suggestion. The code is now running properly, and everything is working as expected.

Hi,

Thanks for your quick reply earlier. I tried running the code you provided, but I’m not getting the expected result.
When I send the “AT” command, I do not receive the “OK” response from the SIMCOM A7670C module.

Here are my setup details:
ESP Board: ESP32-C6-DevKitM-1 V1.0 (www.espressif.com ...

Problem Description:
I'm trying to establish communication between an ESP32-C6 and a SIMCOM A7670C module, but I’m not getting any response to AT commands.
The module appears to be powered on (LED is blinking), but it doesn’t respond to any AT commands sent from the ESP32-C6.

Hardware Setup ...

"I'm working on an ESP32-C6 project with ESP-IDF (version 5.4.1) to implement an IR remote receiver and transmitter for controlling my AC. The provided esp/v5.4.1/esp-idf/examples/peripherals/rmt/ir_nec_transceiver example is helpful for understanding RMT, but it only supports the NEC protocol ...

"I'm working on an ESP32-C6 project with ESP-IDF (version 5.4.1) to implement an IR remote receiver and transmitter for controlling my AC. The provided esp/v5.4.1/esp-idf/examples/peripherals/rmt/ir_nec_transceiver example is helpful for understanding RMT, but it only supports the NEC protocol ...