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 ...

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 ...

It is very easy to build an “SMS-controlled relay” with the help of a cheap GSM modem module and a small microcontroller board. Here, I’m using the SIM800L and Arduino Nano V3 to develop a nifty ...

Attached to the servo horn is a slotted cylinder sized appropriately to fit the shape of the control knob. An Arduino measures ... the unit on/off via a relay connected to the 120vac line would ...

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.

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 ...

Witness how to create a powerful long-range remote control using Arduino technology. This guide takes you through the process of building a customizable, multi-channel RC system that offers ...

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 ...