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 ...
I have a pair of vibration motors that alternately buzz, attached to an Arduino. At the moment the on / off is managed by delay() which takes it's value from a potentiometer via an int potValue. The ...
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