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 ...

If you’re just doing something simple like switching a relay or powering a LED, you might want to think about the Digispark. It’s a very small ATtiny-based Arduino compatible board developed ...

The first part is the ready-made Arduino Microcontroller board, and the second part is an interface circuit ... An additional Electro-Magnetic Relay (EMR) is also attached to the interface circuit.

Like an Arduino board, a micro USB port is used to ... “RelayFi is a 4-channel smart relay board powered by ESP32-WROOM that has the ability to safely control up to 4 appliances or devices ...

Unveiled in 2005, Arduino boards don't have the CPU horsepower of ... shield and then connecting the screw shield, Crowduino, and relay shield together. After that, things got a bit dicey.

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 ...