Waveshare Photo Interrupter Sensor, Speed Measuring

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Overview1. Infrared detection, eliminating the interferences of external stray light2. Schmitt trigger, stable wave form and signals3. Signal output indicator (while breaking the b eam, outputs low level, the indicator lights up)Specifications1. Power: 3.3V ~ 5V2. Dimension: 26.8mm × 15mm × 18.7mm3. Mounting holes size: 3mm4. Gap width: 6mmApplications- Motor speed detection- Pulse counterHow to UseIn the case of working with a MCU:- VCC ? 3.3V ~ 5V- GND ? GND- DOUT ? MCU.IO (digital output) Show more