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

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 ...

All it does is time the activation of the relays that control the gas flow, power, and wire feeder, so [Brett] decided to use an Arduino instead. The welders control circuit runs at 24V ...

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 ...

The 4 channel smart relay board is powered by ... you can add a little extra control to the board that is all programmed using the classic Arduino IDE. As it’s all Wi-Fi connected, having ...

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 ...