Mini IR PIR Motion Sensor HC-SR505

The Mini IR PIR Motion Sensor HC-SR505 is an ultra-compact passive infrared (PIR) sensor designed for human motion detection. With automatic triggering, high sensitivity, and low power consumption, this module is ideal for smart home automation, security systems, and IoT-based motion detection projects.

Its tiny size makes it perfect for compact enclosures, robotics, and battery-powered devices. It works flawlessly with Arduino, NodeMCU, ESP32, Raspberry Pi, and other microcontrollers.

Explore more Electronics Components here:
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For more automation projects, check Arduino and Accessories:
👉 https://electroway.org/product-category/arduino-and-accessories/

✔ Technical Specifications

✔ Features

• Ultra-compact and lightweight

• High sensitivity motion detection

• Low power consumption—great for battery devices

• Easy to use digital output

• Compatible with Arduino, ESP8266, ESP32, Raspberry Pi

• Re-trigger function for continuous motion detection

• Ideal for motion-activated lighting & alarms

• Stable PIR sensing with built-in signal processing

✔ Applications

The HC-SR505 Mini PIR Motion Sensor is perfect for:

• Motion-activated lighting systems

• Home and office smart security alarms

• IoT smart home automation

• Automatic door sensors

• DIY burglar alarm systems

• Robotics and automation

• Energy-saving smart switches

• Human presence detection systems

You may also explore:

• Tools & Accessories: https://electroway.org/product-category/tools-and-accessories/

• IC’s Category: https://electroway.org/product-category/ics/

✔ Precautions

• Avoid placing in direct sunlight or near heating/cooling vents.

• Allow 10–20 seconds for stabilization at power-up.

• Use a stable Power Supply to avoid false triggers:
  👉 https://electroway.org/product-category/raspberry-pi-and-accessories/accessories-raspberry-pi-and-accessories/power-supplies-accessories-raspberry-pi-and-accessories/

• Ensure unobstructed view for accurate detection.

• Avoid high humidity environments.

✔ YouTube Tutorial Video

How to use HC-SR505 with Arduino:
📌 Watch Video:https://www.youtube.com/shorts/qSTZrITyd9c

⭐ Product Summary

The HC-SR505 Mini PIR Motion Sensor is a powerful yet compact infrared motion detector perfect for security, automation, and IoT applications. Its low power consumption, wide detection angle, and easy digital interface make it ideal for Arduino and smart home projects.