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 ...

The Arduino team, known for providing various electronic and microcontroller components for do-it-yourself electronic hobbyists since 2005, has announced its new product, the Plug and Make Kit.

In the video embedded below, he shows off a homemade voltage detector circuit that he constructed using a trio of BC547 NPN transistors. The circuit is pretty simple though very useful all the same.

The Oplà IoT Kit follows the recent launch of the Arduino Explore IoT Kit (€99.00), featuring 10 step-by-step online education activities. That kit was aimed at high school and college students ...