The PIR (Passive Infra-Red) Sensor is a pyroelectric device that detects motion by measuring changes in the infrared (heat) levels emitted by surrounding objects. When motion is detected, the PIR Sensor outputs a High signal on its output pin. This logic signal can be read by a microcontroller or be used to drive an external load. A jumper allows you to set the sensor for 15 ft. or 30 ft. detection range.
Passive Infra-Red Sensor Module Features
- Detection range up to 15 feet away on Short setting; up to 30 feet away on Long setting
- Jumper selects Short or Long setting
- On-board LEDs light up the lens for visual feedback when movement is detected
- Mounting holes for 2-56 size screws
- 3-pin SIP header ready for breadboard or through-hole project
- Small size makes it easy to conceal
- Compatible with BASIC Stamp, Propeller, and many other microcontrollers
- Power Requirements: 3V to 6V DC; 12 mA @ 3V, 23 mA @ 5V
- Communication: Single bit high/low output
- Operating temperature: 32 to 122 °F (0 to 50 °C)
- Dimensions: 1.41 × 1.0 × 0.8 in (35.8 × 25.4 × 20.3 mm)
PIR Sensor Resources
Compatible with Waspmote This sensor can be used in a Waspmote wireless sensor platform by plugging it into the Waspmote Events Sensor Board. Note that this sensor's pin direction has changed since the Waspmote documentation was made, so now the sensor's PCB will sit up vertically from the Waspmote, contrary to the photo in the Events Board's datasheet that indicates the entire Waspmote must be set up perpendicular to the ground.