Waveshare Photo Interrupter Sensor Robot Speed Measuring Module Detector for Arduino Power 3.3V to 5V by waveshare at Tecnopedia. MPN: Photo Interrupter Sensor. Hurry! Limited time offer. Offer valid only while supplies last. Overview Infrared detection, eliminating the interferences of external stray light Schmitt trigger, stable wave form and signals Signal output indicator (while breaking the beam, outputs low level, the indicator lights up) Specifications Power: 3.3V ~ 5V Dimension: 26.8mm × 15mm × 18.7mm Mounting holes size: 3mm Gap width: 6mm Applications Motor speed detection Pulse counter How to Use In the case of working with a MCU: VCC ↔ 3.3V ~ 5V GND ↔ GND DOUT ↔ MCU.IO (digital output)
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