It is great for microcontrollers such as arduino for funduino and many more including the raspberry pi!

It is a HC–SR501 Sensor Module

With an operating voltage of 5v to 20v

Operating voltage. It has a high value of 3.3 volts and a low of 0 (it is either on or off). It's delay time can be adjusted from 5 to 200 seconds as well as the sensing range from 3 meters to 7 meters. The entire sensor with the board is 32mm by 24mm (standard pir motion sensor). The sensor either gives off a 3.3 volt high value when motion is detected and then resumes or continues to give off a 0 voltage when no motion is detected. If you use an arduino or other micro controllers you can use the 3.3 volt out to power the sensor or use the 5 volt power pin (vcc) to power the sensor. Either one will work.

Working voltage range: DC 4.8-20V

Static current: <50uA

High level output: 3.3 V / low 0V

Trigger mode: L unrepeatable trigger / H repeated trigger (Default Repeating trigger)

Delay time: 0.5-200S (adjustable) can be produced range 0.1 seconds – a few minutes

Blocking time: 2.5S (the default) can be produced range 0.1 seconds, tens of seconds

Size: 32mm*24mm circuit board

Induction angle: <100 degree cone angle

Working temperature: -15-+70 degrees

Induction of lens size: diameter: 23mm (default)