The HC-SR501 PIR Motion Sensor detects moving warm bodies (people, pets) and is the standard sensor for burglar alarms, automatic lights and motion-triggered projects.
Key Features
- Detects motion via infrared
- Adjustable sensitivity & delay time
- Digital HIGH output on motion
- Wide ~110° detection angle
- Easy 3-pin hookup
Specifications
| Detection range | 3–7 m (adjustable) |
| Angle | ~110° |
| Output | Digital HIGH/LOW |
| Voltage | 4.5–20V |
| Delay | adjustable |
Popular Project Ideas
- Motion-activated light
- Burglar / intrusion alarm
- Automatic door
- Smart energy saver
Buy it from Arduino Corner — Pakistan’s dedicated Arduino & electronics store in Rawalpindi. Genuine parts, tested before dispatch, COD across Pakistan, and friendly support for your student and university projects.
