The HC-SR505 Mini PIR (Passive Infrared) Motion Sensor is a compact and energy-efficient motion detection module designed for use in security systems, smart home automation, robotics, and energy-saving devices.
It detects infrared radiation emitted by moving objects (such as humans and animals) and triggers an output signal when motion is detected. With its small size and low power consumption, this sensor is perfect for battery-operated IoT devices, wireless motion alarms, automatic lighting systems, and presence detection applications.
Key Features:
✅ Ultra-Compact Design: Small form factor makes it ideal for portable and embedded applications.
✅ Energy-Efficient: Works on low power consumption, making it perfect for battery-powered projects.
✅ Wide Detection Range: Detects motion within 3 to 4 meters with a 120° detection angle.
✅ Automatic Output Signal: Outputs HIGH (3.3V) when motion is detected, LOW (0V) when idle.
✅ Easy to Interface: Compatible with Arduino, Raspberry Pi, ESP8266, ESP32, and other microcontrollers.
✅ Multiple Applications: Used in smart home automation, security alarms, automatic lighting, IoT projects, and robotics.
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