When the button is pressed the Arduino board will put pin 2 in HIGH state, meaning 5V on pin 2. This voltage is used to drive the transistor that will switch ON the relay and the load (in our case the ...

Posted in Arduino Hacks, Tool Hacks Tagged arduino, dahlander, DIN rail, high voltage, motor, three-phase ← Happiness Is Just A Flaming Oxy-Fuel Torch Away The Tiny, Awesome Class D Amp → ...