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 Raspberry Pi is a credit card-sized computer capable of running full-fledged Linux distributions such as Raspberry Pi OS, ...

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. The relay can be used ...

Whenever a valid key is swiped, the Arduino triggers a relay which can then be used to control just about anything. In this case, [Jason] plans to use it to control his garage door. The system ...

In his garage, the Arduino and a set of relay systems connect to the circuits that control his sprinkler system valves. The Arduino is also connected to the Internet via Ethernet. The Android app ...

There are, of course, commercial smart home options available, but if you want total control over your ... this is how your Arduino, motion sensor, and power relay should look.

Once paired, these modules relay serial information from your smart device to ... In fact, it’s so versatile that one app we tested for this article, Bluetooth Arduino Tank Control, was made with this ...