Build a Basic Infrared Motion Alarm with Weekend Projects: 
Build a motion-sensing alarm by combining a few common components: an Arduino, a PIR sensor, a piezo buzzer, and a breadboard. All you need is some jumper wire to connect them all, and the software to run it.
Read the full article on MAKE
Build a motion-sensing alarm by combining a few common components: an Arduino, a PIR sensor, a piezo buzzer, and a breadboard. All you need is some jumper wire to connect them all, and the software to run it.Read the full article on MAKE
Comments