HC-SR505 PIR sensor

Description

The HC-SR505 PIR Sensor is a compact, energy-efficient motion detector designed for precise detection of human presence and motion. It uses infrared technology and possesses automatic control, high sensitivity, high reliability and low power consumption. It triggers a digital output when it senses changes in infrared radiation. It’s 3 pin interface makes it easy to interface with any microcontroller and it’s perfect for motion-activated systems in smart electronics and embedded system projects.

Key Features

• Miniature Size
• Automatic Control
• Low Power Consumption: Ideal for battery-powered and perpetually on applications.
• Digital Output: Easy to interface with microcontrollers (HIGH on motion detection).
• Wide range of operating voltage
• Fixed Delay Time: Built-in timing circuit with ~8s delay after trigger.
• Repeatable Trigger
• Wide Detection Range: Up to 3 meters with a 100° field of view.

Technical Specifications

• Operating Voltage: 4.5V – 20V DC
• Quiescent Current: <60µA
• Detection Range: 3 meters
• Detection Angle: <100° cone angle
• Output Delay Time: The default 8 seconds+ -30% **
• Operating Temperature: -20°C to +80°C
• Dimensions: 23mm x 10mm
• Weight:5g

Applications

• Motion-activated lighting systems
• Smart home automation (e.g. lights, alarms)
• Industrial automation and control.
• Security and surveillance devices
• Occupancy monitoring
• Auto-sensing of electrical equipment.
• DIY electronics and IoT projects

Why Choose This Product?

It offers a simple, cost-effective way to add motion detection to any project and provides reliable detection with minimal effort.