“Once upon a time, there were two kids in a garage, playing with electronics.
Later, they eventually founded HP.”

Arduino Uno
Arduino is a cheap (30$) ready-to-use open-source microcontroller, with built-in in-and-outputs, that lets you easily take control of electronic parts, such as LED, speakers, motors or servo, through programs you write in C. You can add ‘shields’, which allow you to implement new functionnalities, such as wireless communiction or data storage.
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