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RC boat with "out of this world" RGB LED lights
Description: Using an Arduino or a micro controller, we can generate cool-looking patterns with an led strip containing ...
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 ...
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