HC-SR501 PIR Motion Sensor Module

HC-SR501 PIR Motion Sensor Module

The HC-SR501 PIR (Passive Infrared) sensor detects human motion by sensing changes in infrared radiation. It is widely used in Arduino and Raspberry Pi projects for smart automation, lighting control, and security systems.

Key Features

• Detects motion using PIR technology
• Adjustable sensitivity (range)
• Adjustable delay time output
• TTL digital output (HIGH on motion detection)
• Low power consumption, stable operation

Specifications

• Model: HC-SR501
• Operating Voltage: 5V DC
• Detection Distance: approx. 3m–7m (adjustable)
• Detection Angle: approx. 120°
• Output Signal: Digital TTL
• Delay Time: adjustable (approx. 0.3s to 5min)

Applications

• Motion activated lights
• Security alarm systems
• Smart home automation
• DIY electronics projects

Package includes: 1x HC-SR501 PIR sensor module