Gravity PIR Motion Sensor for Arduino

This Gravity PIR sensor from DFRobot detects the movement of people and animals through their heat radiation. It works at 3.3 V and 5 V and therefore suits Arduino, ESP32 and Raspberry Pi. When motion is detected, the output goes HIGH and an LED lights up; after the motion ends, the output stays HIGH for about 2.3 s to 3 s. The range is up to 7 m with a detection angle of 100°.

Note: The connection cable can be converted to male pins with a Dupont cable M-M, so that it also fits an Arduino UNO.

Recommended Accessories:

• Dupont Cables M-M 10cm 20 Pieces

Features:

• Digital PIR detector AM412
• Output HIGH (3 V) on motion, otherwise 0 V
• LED shows the state of the output
• Current consumption only 15 µA, suitable for battery operation
• Gravity PH2.0 3-pin connector

Application Examples:

• Switching lights on automatically
• Alarm systems
• Detecting presence in rooms, for example for heating and ventilation
• Battery-powered motion detectors

Documentation:

• Wiki DFRobot SEN0171
• Schematic (PDF)

Technical Data:

• Manufacturer: DFRobot
• Manufacturer SKU: SEN0171
• Operating voltage: 3.3 V to 5 V, maximum 6 V
• Current consumption: 15 µA
• Output: HIGH 3 V, LOW 0 V
• Hold time after motion: about 2.3 s to 3 s
• Detection angle: 100°
• Range: up to 7 m
• Output limit current: 100 mA
• Operating temperature: -20 °C to +85 °C
• Connector: PH2.0 3-pin
• Dimensions: 30 × 22 mm
• Weight: 13 g

Scope of Delivery:

• 1× Gravity PIR Motion Sensor
• 1× Gravity digital cable 3-pin