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 ...

[JonBush] recently did a beautiful build of an Arduino-based fireworks controller ... Driving the firing relays on both sides makes it harder for a stuck output to fire accidentally.

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 ...

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

Of course he could modify a refrigerator and humidifier to be controlled separately, but [Mike] decided the best course of action would be to control line voltage with an Arduino. [Mike] started ...

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 ...

Arduino enthusiasts that enjoy building Internet of Things projects may be interested in a new Arduino IoT controller that has been created which is fully open source and provides a complete IoT ...

Once paired, these modules relay serial information from your smart device ... Bluetooth Terminal handles text entry quite well, but speed isn’t its strong suit. Arduino Bluetooth Controller by ...

Makers, developers and hobbyists that are looking for a low-cost Bluetooth Arduino compatible micro controller that can be controlled and programmed wirelessly may be interested to know that the ...