The Wemos D1 mini is a really cool microcontroller.

It costs only £5 and provides integrated WiFi bng connectivity and 13 digital I/O and 1 analog I/O.

For those struggling in find the pinout scheme here it is

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Control flow with promises

Promises are very powerful and allow us to create really complex asynchronous data flows. When we want to execute tasks at the same time we
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Image to Byte Array

Here is a small fiddle that I've done to convert images to byte array. I use it to create icons for my projects with Arduino and similar. T