Description

🔍 HC-SR501 PIR Motion Sensor – Smart & Efficient Motion Detection for DIY & Pro Projects

The HC-SR501 PIR Motion Sensor is a highly reliable, low-power infrared sensor designed for detecting human movement in a wide range of environments. Whether you’re building a security system, automating your home, or developing an interactive installation, this sensor delivers precise, adjustable motion detection with minimal power consumption.

✅ Key Features

• Accurate Motion Detection
  Senses changes in infrared radiation to detect movement—perfect for security systems and smart automation.

• Adjustable Sensitivity
  Fine-tune the detection distance between 3m to 7m using onboard potentiometers.

• Customizable Delay Time
  Set how long the sensor stays “high” after motion is detected—from 5 seconds up to 5 minutes.

• Flexible Power Options
  Operates on 5V to 20V DC, compatible with various microcontrollers and power sources.

• Low Standby Current
  Consumes just ≤ 50µA in standby—great for battery-powered applications.

• Wide Detection Angle
  Detects motion across a 110° cone, thanks to the high-quality Fresnel lens.

• Simple Digital Output
  Outputs a 3.3V high signal when triggered—easy to integrate with Arduino, Raspberry Pi, ESP32, and other platforms.

📊 Technical Specifications

💡 Common Applications

• 🏠 Security Systems: Trigger alarms or alerts when movement is detected indoors or outdoors.

• 💡 Lighting Automation: Turn lights on/off based on occupancy, saving energy.

• 🏡 Smart Home Projects: Control appliances like fans, cameras, or HVAC systems.

• 🤖 Robotics: Detect presence and trigger motion or responses in robots.

• 🎨 Interactive Installations: Bring projects to life by sensing nearby motion or presence.

🎯 Why Choose the HC-SR501?

• Plug-and-play with easy wiring

• Works right out of the box with Arduino and Raspberry Pi

• Customizable with two adjustable knobs (sensitivity + delay)

• Reliable performance in a compact, lightweight form

• Energy-efficient for long-lasting battery use

📦 Package Includes

• 1 × HC-SR501 PIR Motion Sensor Module

⚙️ Whether you’re prototyping a smart lighting system or enhancing your robot’s awareness, the HC-SR501 delivers reliable motion detection with incredible ease and precision.