PIR Motion Sensor Module (Human Motion Detector for Arduino & ESP32)

Description

The PIR Motion Sensor Module (HC-SR501) is a highly popular and reliable sensor used to detect human motion by sensing infrared radiation emitted from the human body. When a person moves within the sensor’s range, it triggers a digital signal, making it perfect for security, automation, and smart projects.

This module features adjustable sensitivity and delay time, allowing flexible customization based on project requirements. It works seamlessly with Arduino, ESP32, ESP8266, Raspberry Pi, and STM32, making it an essential component for DIY electronics, robotics, and IoT applications.  DROBAN

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⭐ Key Features

• Detects human body motion using infrared

• Adjustable detection distance

• Adjustable delay time

• Stable & reliable output

• Low power consumption

• Easy to interface with microcontrollers

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🔧 Technical Specifications

• Model: HC-SR501

• Sensor Type: Passive Infrared (PIR)

• Operating Voltage: 4.5V – 20V DC (5V typical)

• Output Type: Digital (HIGH / LOW)

• Detection Distance: Up to 7 meters (adjustable)

• Detection Angle: ≈120°

• Trigger Modes: Single / Repeat (jumper selectable)

• Output Signal: 3.3V TTL

• Warm-up Time: ~30–60 seconds

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🔌 Compatibility

• Arduino (Uno, Nano, Mega)

• ESP32 / ESP8266

• Raspberry Pi

• STM32

• Home Automation Controllers

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📍 Typical Applications

• Motion-based Security Systems

• Automatic Light Control

• Smart Home Automation

• Burglar Alarm Systems

• Robotics Motion Detection

• Energy-Saving Systems

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📦 Package Includes

1 × PIR Motion Sensor Module (HC-SR501)

Sonar Sensor