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By slow_rider
#73036 I have an AVR MCU hooked up to an ESP822 (ESP-12F module) via UART. I would like to create a simple application for my Android based phone that could send a number of commands in the form of strings or otherwise to the ESP8266 and those will be sent to the MCU so it can perform the suitable tasks.

I looked into MIT app inventor but I am not sure how data is sent from the phone to the ESP8266. I have managed to define a AP that I can connect my phone to but that's where things stop.

Direction and advice will be appreciated!