HC-SR501 PIR Motion Sensor Module – Pyroelectric Infrared Detector, Arduino & Raspberry Pi Compatible – DIY Electronics NZ
The HC-SR501 PIR Motion Sensor Module is a compact electronic device that detects infrared radiation (heat) emitted by moving objects, commonly used in DIY electronics, automation, security systems, and smart home projects.
The HC-SR501 PIR Motion Sensor Module is also known as a Pyroelectric Infrared Sensor, Passive Infrared Sensor, PIR Detector, Motion Detection Module, Human Body Sensor, Infrared Motion Module, Arduino Motion Sensor, Raspberry Pi Motion Detector, Duinotech Arduino Compatible PIR Motion Detector Module. Advanced PIR Motion Detection for DIY Projects & Smart Homes
Take your automation, security, and electronics projects to the next level with the HC-SR501 PIR Motion Sensor Module, the #1 choice for makers, hobbyists, and engineers.
- Superior Motion Detection: Pyroelectric infrared sensor provides fast and accurate human or animal movement detection.
- Wide Compatibility: Fully compatible with Arduino, Raspberry Pi, ESP32, and other microcontroller platforms.
- Adjustable Sensitivity & Delay: Customise detection range (up to 7m) and trigger delay for precise project needs.
- Low Power Consumption: Ideal for battery-powered, energy-efficient applications.
- Plug-and-Play Integration: Simple 3-pin interface (VCC, OUT, GND) – perfect for beginners and experts alike.
- Versatile Applications: Use in alarms, lighting automation, energy saving, smart home security, and more.
- Reliable Performance: Proven design with a 1-Year Techexpress Guarantee.
- Support & Fast Shipping: Local stock and expert support, right here when you need it!
Upgrade your project today with the trusted HC-SR501 PIR Motion Sensor Module – shop now at Techexpress NZ! Features of the HC-SR501 PIR Motion Sensor Module:
- Adjustable sensitivity and time delay
- Wide detection range (up to 7 metres, 120° angle)
- Low power consumption
- Digital output signal (high/low)
- Compatible with Arduino, ESP32, Raspberry Pi, microcontrollers
- Compact design, easy installation
- 3-pin connection (VCC, OUT, GND)
- Operating voltage: 5V–20V DC
- Stable and reliable performance
- Simple plug-and-play interface Applications for the HC-SR501 PIR Motion Sensor Module:
- Home security and intruder alarms
- Automatic lighting control
- Smart home automation
- Motion-activated cameras or alarms
- Energy-saving systems
- Occupancy sensing
- DIY robotics and electronics projects
- Pet monitoring systems
- Garage and shed automation
- Interactive art and display installations How is the 'HC-SR501 PIR Motion Sensor Module' used?
Connect the sensor’s VCC, OUT, and GND pins to your microcontroller (e.g., Arduino, Raspberry Pi, ESP32). Mount it at the desired height and angle. Adjust sensitivity and delay settings with onboard potentiometers. The sensor detects movement via infrared, sending a HIGH signal when motion is detected, allowing you to trigger alarms, lights, cameras, or other devices in your DIY automation, security, or smart home project. Compatibility:
The HC-SR501 PIR Motion Sensor Module is designed for seamless integration with a wide range of microcontrollers and development platforms, including Arduino, Raspberry Pi, ESP8266, ESP32, and many more. It uses a simple digital output and requires a DC power supply (5V–20V), making it suitable for direct use in most DIY, automation, and IoT projects. The adjustable sensitivity and delay make it adaptable to a variety of use cases.
While unfamiliar with your devices, we offer a 14-day 'trial and return for refund less shipping fee' service to enable testing in your environment with your equipment.
Technical Specifications:
- Model: HC-SR501
- Sensor Type: Pyroelectric Infrared (PIR)
- Operating Voltage: 5V–20V DC
- Current Drain:< 50µA (standby)
- Detection Distance: 3–7 metres (adjustable)
- Detection Angle: 120 degrees (approx.)
- Trigger Mode: Repeatable (default), non-repeatable (selectable)
- Output: Digital (high/low, 3.3V level)
- Time Delay: Adjustable (approx. 5s–5min)
- Sensitivity: Adjustable (up to 7m)
- Dimensions: 32mm x 24mm x 18mm (approx.)
- Operating Temperature: -15°C to 70°C
- Applications: Security, Automation, Lighting, Robotics, Smart Home ⚠️ Limitations
- Not weatherproof: Requires enclosure for outdoor or damp environments.
- Limited angle/distance: Maximum detection range is 7 metres at ~120°, may not cover very large areas.
- Requires stable DC supply: Incorrect voltage may cause malfunction.
- Not suitable for all pets: Small animals or fast movement