The KY-010 Photo Interrupter module is a switch that will trigger a signal when the light between the sensor’s gap is blocked.
This module is suitable for various electronic platforms like Arduino, Raspberry Pi, ESP32, and others.
Specifications:
This module consists of an optical emitter/detector and 3 male header pins on the front. On the back, there are two resistors of 10kΩ and 33Ω.
The sensor uses a beam of light between the emitter and detector to check if the path between both is being blocked by an opaque object.
| Operating Voltage | 3.3V ~ 5V |
| Board Dimensions | 18.5mm x 15mm |
Connection Diagram
Connect the power line (middle) and ground (left) to +5V and GND respectively. Connect signal (S) to pin 3 on the Arduino.
| KY-010 | Arduino |
|---|---|
| – (left) | GND |
| middle | +5V |
| S (right) | Pin 3 |
