TLDR
Arduino UNO is an open-source microcontroller board developed by Arduino. This article gives you a complete description of the very famous Arduino. The article discusses the hardware technicalities and programming of the board. It is inexpensive and easy to use. One can make a wide range of projects using the Arduino platform. The Arduino board takes the input from the devices like switches, sensors, etc. and the output is obtained based on the code uploaded on the board. At the end of the article I have demonstrated the working of the UNO board with a simple example of LED control.via the TL;DR App
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