Last month I bought a PIR as part of my Adafruit order for Raspberry Pi stuff. This weekend I decided to try and use it with the RPi. Using the WiringPi library, it was pretty easy to get it up and running. Here is a picture of it mounted on top of the Prototyping Pi Plate from Adafruit with double-sided tape.
Each Friday is PiDay here at Adafruit, be sure to check out our posts, tutorials and new Raspberry Pi related products. Have you tried the new “Adafruit Raspberry Pi Educational Linux Distro” ? It’s our tweaked distribution for teaching electronics using the Raspberry Pi.