Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I document my learning in order to be able to inspire other people to make ...

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 ...

Reversing ‘bridges’ have four switches (relay contacts or transistors) and the diagram (right) shows how they work. Because students are using it, it needs to be short-circuit-proof – no possibility ...

Electromechanical relays will require a transistor driver circuit in order to be driven by the Arduino. The typical circuit for driving a relay is the same as the transitor driver above with the ...