SparkFun BOB-09322 Photo Interrupter Sensor Breakout - GP1A57HRJ00F
The SparkFun BOB-09322 breakout board integrates the GP1A57HRJ00F transmissive photo interrupter, providing a simple digital output for object detection, motion sensing, and position tracking in Arduino, Raspberry Pi, and other microcontroller projects.
Features
- Integrated GP1A57HRJ00F transmissive photo interrupter sensor
- Digital TTL output signal (high >4.9V, low <0.4V)
- 10mm optical sensing gap with 1.8mm slit width
- Simple 3-pin interface (PWR, GND, SIG) for easy connection
- Non-contact infrared beam interruption sensing principle
Out of stock
The SparkFun BOB-09322 is a breakout board for the GP1A57HRJ00F photo interrupter, a transmissive optical sensor consisting of an infrared LED emitter and a phototransistor receiver aligned across a 10mm gap. When an object passes through this gap, it interrupts the infrared beam, causing the phototransistor’s state to change. This state change is conditioned on-board to produce a clean digital TTL-compatible signal.
The module outputs a logic high voltage (>4.9V) when the beam is clear and a logic low (<0.4V) when obstructed, making it directly compatible with 5V microcontroller logic levels on platforms like Arduino, ESP32, and Raspberry Pi (with level shifting). The included current-limiting resistor for the IR emitter simplifies integration, requiring only a power supply connection for immediate operation in object counting, limit switch, or rotary encoder applications.
Additional Information
| Weight | 0.005 kg |
|---|---|
| Dimensions | 3 × 2 × 1 cm |
