HC-SR501 PIR Motion Sensor

The HC-SR501 PIR Motion Sensor Module is a popular motion detection module used in DIY electronics, home automation, and security systems. It detects infrared (IR) radiation emitted by humans or animals, triggering an output signal when motion is detected.

This module features an adjustable sensitivity and delay time, allowing users to fine-tune the detection range and response. With a low-power design and wide input voltage range (4.5V–20V), it's perfect for battery-powered and embedded applications.

Whether you're building an IoT project with Arduino or Raspberry Pi, or setting up a smart security system, the HC-SR501 provides accurate and reliable motion detection.

🔧 Features:

• Voltage: 4.5V to 20V DC

• Detection Distance: Up to 7 meters

• Detection Angle: 120°

• Adjustable sensitivity and delay time

• TTL output (High = 3.3V)

• Operating temperature: -15°C to +70°C

• Compact and easy to use

🎯 Applications:

• Home and office automation

• Motion-activated lighting

• Intruder alert systems

• DIY IoT and smart systems

• Robotics and embedded projects