The PIR Sensor 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.
NOTE: The product information found on this page currently pertains to Revision B of this product, which provides many updates and features from Revision A. Some of these include:
Longer detection range, selectable by onboard jumper
Wider supply voltage, from 3 to 6 VDC
Higher output current provides for direct control of an external load
Mounting holes included for permanent projects
All parts SMT
Key Features:
Typically detects a person up to approximately 30 ft away, or up to 15 ft away in reduced sensitivity mode
Jumper selects normal operation or reduced sensitivity
Approximately 90 degree field of view
Onboard LEDs light up the lens for fast visual feedback when movement is detected
Mounting holes for 2-56 sized screws provide easy integration in permanent applications
3-pin SIP package perfect for breadboard-friendly projects
Easy communication with any microcontroller
Small size makes it easy to conceal
Application Ideas:
Motion-activted nightlight
Alarm system
Animated holiday props
Details:
Source current up to 12 mA @ 3V, 23 mA @ 5V
Voltage requirements: 3 to 6 VDC
Current requirements: 130 uA idle, 3 mA active (no load)
Communication: Single bit high/low output
Dimensions: 1.41 x 1.0 x 0.8 in (3.6 x 2.5 x 2.0 cm)