Using Flask to Send Data to a Raspberry Pi

In this tutorial, we’ll show you how to send data from cheap WiFi nodes to a Raspberry Pi over an internal WiFi network. It relies on the Flask framework for Python, which is a relatively simple-to-use method of creating a web application that can execute Python scripts.

We’ll use a Raspberry Pi 3 and SparkFun ESP8266 Thing to demonstrate. We’re going to send a very simple signal from the Thing board to the RasPi - just a signal to turn an attached LED on or off. Hopefully, it’ll be obvious from the example how to send more complex signals and run more complex scripts upon receipt.”

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