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 ...

This weeks Tech Tuesday shows you how to drive model railway point motors with the Arduino microcontroller platform. In this video we show you how to program the Arduino to control a 16-channel 12V DC ...

An Arduino shield for controlling four 12v relays. The schematic and PCB layout were created using KiCad. While it is designed for relays, it can be used for powering anything that requires a bit more ...

Here, we are using a 4 relay module because we will only control four appliances. If you want to automate a different number of appliances, you can use a different relay module. There are many relay ...

These Door lock is just electrically operating door lock which gets open when you apply some voltage (typically 12v) to it. Here in this project we are using Arduino and relay to trigger the Electric ...

After wiring up each outlet so it can be controlled independently, he set out designing a four port relay board. This was a pretty simple build – four 10 Amp relays and a few terminal blocks.

I just received my RC522 RFID reader and made this simple Arduino access control system that uses the reader, a buzzer for the alarm and a relay shield for the security system.