PIR Motion Detector Sensor Module HC-SR501

The HC-SR501 PIR Motion Sensor Module is a widely used, affordable, and reliable solution for detecting human movement by sensing infrared (IR) radiation emitted by the body. Ideal for Arduino, Raspberry Pi, and ESP32 projects, this sensor is commonly used in home automation, security systems, energy-saving devices, and IoT applications.

This module comes with adjustable sensitivity and delay time using two onboard potentiometers, giving you control over how the sensor responds. Its wide detection range and low power consumption make it ideal for motion-triggered devices like alarms, lights, and surveillance systems.

Key Features:

• Detects human motion using Passive Infrared (PIR) sensing
• Adjustable sensitivity and delay time
• Detection Range: Up to 7 meters, 120° cone
• Operating Voltage: 4.5V – 20V DC
• Output: Digital HIGH (motion) / LOW (no motion)
• Compatible with Arduino, ESP8266, ESP32, Raspberry Pi, etc.

Applications:

• Motion-activated lighting
• Home and office security systems
• IoT motion detection projects
• Automatic door systems
• Energy-saving appliances