Here is an ultra simple Arduino Night Alarm project wired around a handful of inexpensive and easily available components. One advantage of using Arduino as a security system is ... LOW); ...

“To create this smart device, Robert used an Arduino Oplà IoT Kit, as it contains a MKR WiFi 1010, a MKR IoT Carrier with a built-in screen and capacitive buttons, and a PIR sensor for ...

While PIR sensors can be used with Arduino and other microcontroller boards, those best-suited for hobby use are smart enough to perform simple tasks without any programming.