In this quick Arduino tutorial I will explain how you can control a relay using the Arduino Board, one 1K and one 10K resistors, 1 BC547 transistor, one 6V or 12V relay, one 1N4007 diode and a 12V fan ...
Usually, I use the Serial Monitor of the Arduino IDE to communicate with the Arduino hardware. But now, I want to build an application on my computer that allows me to click some buttons to control ...
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