Here is an ultra simple Arduino Night Alarm project wired ... As indicated, our system requires a “Logic High (H)” level input to wake up. The best sensor you can use to detect an intrusion is the ...

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 ...

There’s a huge market for 433 MHz alarm system hardware out there, from PIR motion detectors to door and window sensors. If you want to put them to work, all you need is a receiver, a network ...

Put aside all of the projects that use an Arduino to blink a few LEDs ... Mega into a fully-functional home alarm system. The alarm can read RFID cards for activation and control of the device.

Nair explained that many schools use an RFID-based attendance system known as an iClicker to track whether ... Nair said that a clone device could be built using a low-cost Arduino electronics ...