The Parallax PIR Motion Sensor (Rev B) detects movement by sensing infrared heat signatures. When triggered, it activates an integrated LED inside the translucent dome for immediate visual feedback while sending a digital signal to your microcontroller. Upgraded for better performance, Revision B offers an expanded voltage range, onboard sensitivity modes, and higher output current—making it ideal for Arduino, Raspberry Pi, and BASIC Stamp projects.
Key Features:
- Adjustable Range: Detects motion up to 30 ft (normal) or 15 ft (reduced sensitivity via onboard jumper).
- Wide Field of View: Provides ~90° coverage for room-wide detection.
- Visual Indicator: Onboard LED illuminates the dome lens upon motion activation.
- Flexible Powering: Operates across 3 to 6 VDC for easy logic integration.
- Direct Load Driving: Increased output current supports small external loads without extra circuitry.
- Easy Mounting: Built-in mounting holes (2-56 screws) and standard 3-pin SIP layout for breadboards.
Quick Specs:
- Supply Voltage: 3 to 6 VDC
- Current Draw: 130 µA (idle) / 3 mA (active)
- Output Current: Up to 12 mA @ 3V / 23 mA @ 5V
- Dimensions: 1.41″ × 1.0″ × 0.8″ (3.6 × 2.5 × 2.0 cm)