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 ...
This article will help you build a simple Arduino-based DCC system. Growing up in the 1980s I was living the dream. I had an ...