![]() ![]() You can still send string based commands to it but they look different. For example last firmware adds SSL support, more AT commands and many bugfixes. You still have option to upgrade the firmware to the latest version. It is by default supported by stock firmware. You can communicate with ESP8266 using AT commands.There are actually many ESP8266 programming options: Soon there will be tutorials how to change the firmware to NodeMCU and write your own custom firmware. In this post I will cover only AT firmware update. I decided to put everything together ino one blog post. There are many tutorials how to program ESP8266 but many of them are missing with detailed instructions or how to make a programmer for this purpose or does not guide where to get the firmware and tools. When it comes with the factory firmware it has AT interface support that is sufficient to cover all configuration options. ESP8266 is currently one of the most widely used WIFI chip because of its low cost and small number of required external components. ![]()
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