HC-SR501 PIR Motion Sensor
—The HC-SR501 is a passive infrared motion sensor that outputs a digital high signal when a warm body moves within about seven metres.
Specifications
- Detection range adjustable to about 7m
- Detection angle roughly 110°
- Adjustable output delay from ~3 seconds to ~5 minutes
- Repeat and single trigger modes
- 4.5-20V supply, 3.3V logic output
- Two trimmer potentiometers for range and delay
What you can build with the HC-SR501 PIR Motion Sensor
- Automatic lighting in hallways and garages
- Security and driveway alerts
- Home Assistant occupancy sensing
- Battery-saving wake triggers for cameras
- Interactive displays that start when someone approaches
Compatibility
Works with Arduino, ESP32, ESP8266 and Raspberry Pi — the 3.3V output is safe for all of them. Give it about a minute to settle after power-up before trusting readings.
Shipping
Dispatched from New Zealand with courier delivery nationwide, including rural addresses. Prices are in New Zealand dollars.
Availability: Sold out
The HC-SR501 is a passive infrared motion sensor that outputs a digital high signal when a warm body moves within about seven metres.
Specifications
- Detection range adjustable to about 7m
- Detection angle roughly 110°
- Adjustable output delay from ~3 seconds to ~5 minutes
- Repeat and single trigger modes
- 4.5-20V supply, 3.3V logic output
- Two trimmer potentiometers for range and delay
What you can build with the HC-SR501 PIR Motion Sensor
- Automatic lighting in hallways and garages
- Security and driveway alerts
- Home Assistant occupancy sensing
- Battery-saving wake triggers for cameras
- Interactive displays that start when someone approaches
Compatibility
Works with Arduino, ESP32, ESP8266 and Raspberry Pi — the 3.3V output is safe for all of them. Give it about a minute to settle after power-up before trusting readings.
Shipping
Dispatched from New Zealand with courier delivery nationwide, including rural addresses. Prices are in New Zealand dollars.