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 ...

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 ...

It’s a fairly simple project, too: just hook an Arduino Uno up to a motion sensor and an electronic switch called a relay, then plug in your fan, and you’re good to go. If that sounds ...

PANIC ALARM - ARDUINO // // by T.K.Hareendran // int rlyPin = 12; // Relay Output Pin int sensPin = 2; // Switch Input Pin int ledPin = 13; // LED output Pin int pzSpeaker = 10; //Piezo-speaker Output ...

The ‘unhackable’ switch, which resembles a MIDI sequencer input, runs on an Arduino Nano Every and uses a relay to directly control the power state. Instead of having one keep-alive button ...

For someone who’s never worked with an Arduino before ... There is also a DIP switch that allows the user to select how long the relay circuit should remain open.

This fan is designed to operate by switch, but you can also add an Arduino relay switch to turn it on and off by motion. Back in 2008 Gina covered a guy who combined a bathroom exhaust fan with a ...

This particular relay comes with a switch that can force the lights on, just in case. Check out [Paulo’s] project blog for the full write-up, links to code and more details, then take a look at ...