{"title":"Gravity: Arduino PIR (Motion) Sensor","handle":"gravity-arduino-pir-motion-sensor","url":"/products/gravity-arduino-pir-motion-sensor","description":"A passive infrared (PIR) motion sensor from DFRobot's Gravity series. It detects infrared radiation from people and animals in motion and outputs a digital HIGH signal when movement is detected — ideal for security systems, occupancy sensing, and automated lighting projects.\n\nThe sensor operates at 3.3–5 V and uses DFRobot's Gravity 3-pin interface for plug-and-play connection to Arduino, Raspberry Pi, and other microcontrollers. An onboard LED lights up when motion is detected.\n\nKey Features\n\n\nPIR Motion Detection – Detects human and animal movement via infrared\n\n7 m Detection Range – 100° detection angle\n\n3.3–5 V Operation – Compatible with both 3.3 V and 5 V logic\n\nGravity Interface – PH2.0 3-pin connector for plug-and-play wiring\n\nLow Power – 15 µA working current\n\nLED Indicator – Lights when output is HIGH (motion detected)\n\n\nSpecifications\n\n\nInput Voltage: 3.3–5 V (6 V max)\n\nWorking Current: 15 µA\n\nOutput: Digital (HIGH 3 V / LOW 0 V)\n\nOutput Delay: ~2.3–3 seconds (HIGH)\n\nDetection Angle: 100°\n\nDetection Distance: 7 m\n\nPin Limit Current: 100 mA\n\nConnector: PH2.0 3-pin (Gravity)\n\nModule Size: 30 × 22 mm\n\nOperating Temperature: −20 to +85 °C\n\n\nIdeal For\n\nSecurity and intrusion detection systems\nOccupancy-based automation (lighting, HVAC)\nInteractive installations and exhibits\n\n\nPackage Contents\n\n1× Gravity Digital PIR Motion Sensor\n1× Gravity Digital Cable\n\n\nResources\n\nPIR Motion Sensor Wiki (DFRobot)\nSchematic (PDF)\n","vendor":"DFRobot","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":11690,"title":"Default Title","sku":"DF-SEN0171","price":8.29,"on_sale":false,"in_stock":true,"available_quantity":623,"option1":"Default Title"}]}