At Client

Introduction

AT commands were initially instructions used to control a modem. AT is the abbreviation of ATtention. Every command line starts with “AT” or “at”. If interested a good background article is Hayes Command Set.

Nowadays also other devices allow communication via AT commands as for example GSM/GPRS modems, GPS trackers, web cameras and more.

This library simplifies the communication with such devices.

Usage

1. Add COMPONENT_DEPENDS += AtClient to your application component.mk file.

2. Add these lines to your application:

   #include <AtClient.h>
   
   namespace
   {
           AtClient* atClient;
   
           // ...
   
   } // namespace
   
   void init()
   {
           Serial.begin(SERIAL_BAUD_RATE);
           Serial.systemDebugOutput(true);
   
           atClient = new AtClient(Serial);
           atClient->send("ATE0\r");
           // ...
   }
   

References

• Source Code

Used by

• Webcam Sample

SoC support

• esp32

• esp32c2

• esp32c3

• esp32s2

• esp32s3

• esp8266

• host

• rp2040