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SKU:HCSR505-PIR
HC-SR505 Mini Infrared PIR Motion Sensor — Compact 3-Pin
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Rs.200.00
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Rs.200.00
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HC-SR505 Mini Infrared PIR Motion Sensor — Compact 3-Pin
The HC-SR505 is a miniaturized passive infrared (PIR) motion sensor ideal for space-constrained projects where the larger HC-SR501 won't fit. Despite its tiny footprint, it reliably detects human motion up to 3 meters away with a 100° detection angle. Perfect for wearables, compact security devices, and embedded automation projects with Arduino or ESP32.
Technical Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | 4.5V – 20V DC |
| Output Voltage | 3.3V (HIGH) / 0V (LOW) |
| Detection Range | Up to 3m |
| Detection Angle | ~100° |
| Delay Time | ~8 seconds (fixed) |
| Trigger Mode | Single trigger (non-repeatable) |
| Standby Current | <60 μA |
| Operating Temperature | -20°C to +80°C |
| Dimensions | ~10mm × 23mm (mini form factor) |
Pinout
| Pin | Name | Description |
|---|---|---|
| 1 | VCC | 4.5V – 20V Supply |
| 2 | OUT | Digital Output (3.3V HIGH on motion) |
| 3 | GND | Ground |
Key Features
- Ultra-compact form factor — fits in tight enclosures and wearables
- Low standby current: <60 μA — great for battery-powered designs
- 3.3V logic output — directly compatible with ESP32, STM32, Arduino
- Wide supply voltage: 4.5V to 20V
- No external components needed — plug and play
Applications
- Compact security and alarm systems
- Wearable motion detection devices
- Battery-powered smart switches
- Automatic night lights
- IoT presence detection nodes