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 ...
In this project, we are going to build something very simple project, a temperature controlled relay that is used to turn on a dc fan. You can actually change the DC Fan to other electrical devices ...
Pickering has created a high voltage reed relay, that can stand off 1.5kV and switch up to 1kV. Called Series 131, they are single pole (normally-open) single-in-like devices with a 12.5 x 3.7mm ...