{"id":749,"date":"2020-10-02T14:48:09","date_gmt":"2020-10-02T07:48:09","guid":{"rendered":"https:\/\/www.makeriot2020.com\/?p=749"},"modified":"2020-10-02T14:50:54","modified_gmt":"2020-10-02T07:50:54","slug":"esp8266-and-esp32-at-commands","status":"publish","type":"post","link":"https:\/\/www.makeriot2020.com\/index.php\/2020\/10\/02\/esp8266-and-esp32-at-commands\/","title":{"rendered":"ESP8266 and ESP32 AT Commands"},"content":{"rendered":"\n
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NodeMCU V3, ESP8266<\/figcaption><\/figure>\n\n\n\n

In this tutorial, I\u2019ll show you some of the important and frequently used ESP8266 AT Commands or AT Instruction Set.  <\/p>\n\n\n\n

ESP8266 WiFi Module offers complete networking solutions to our DIY (Do-it-yourself) and IoT (Internet of Things) projects. It provides WiFi connectivity to any microcontroller through its full TCP\/IP Stack.

This means that you can use the ESP8266\/ESP32 like a WiFi Modem, this is especially handy when you don’t want to reprogram an entire module for a project, or if you already have a working project on an Arduino type board, and just want to add WiFi connectivity to the project. <\/p>\n\n\n\n



It is however important to tell you that it is sometimes better to write your own code to achieve exactly what you want. The AT Commands, in my opinion, is however extremely useful to quickly test something, or do a very simple integration. Your opinion and or milage will definitely vary on this one, feel free to comment and make suggestions as always \ud83d\ude42<\/p>\n\n\n\n

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Kidbright 32, based on the ESP32 WROOM Chip<\/figcaption><\/figure>\n\n\n\n

Let us get started then<\/p>\n\n\n\n

Please NOTE:<\/h2>\n\n\n\n

The AT Command Set will ONLY function on a NEW ESP8266\/ESP32 Module that you have not loaded custom firmware onto, OR on a module that you have re-flashed with the AT Command Firmware. This means that, If you have used the Arduino IDE to upload custom code to your ESP8266\/ESP32 module, these commands will NOT work for you,
UNLESS you flash the module with ESPRESSIF AT Command Firmware!<\/span><\/em><\/strong><\/p>\n\n\n\n

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The ESP8266 WiFi module and the microcontroller can be interfaced through the UART and with the help of a wide range of AT Commands, the Microcontroller can then control the ESP Module.<\/p>\n\n\n\n

The AT Commands of the ESP8266 WiFi Module are responsible for controlling all the operations of the module like restarting, connecting to WiFi, changing the mode of operation and so forth. <\/p>\n\n\n\n

Basically, the ESP8266 AT Commands can be classified into four types:<\/p>\n\n\n\n

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