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 ...
The main component here is an Arduino and a 5-Volt Relay (go through ‘FastTrack: Arduino for Everyone’ if you’re not familiar with it). In a nutshell, Arduino can be described as a microcontroller ...
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