KY-010 Broken Light Blocking Sensor

Y-010 Broken Light Blocking Sensor
The KY-010 Photo Interrupter module consists of an optical emitter/detector in the front and two resistors (1 kΩ and 33 Ω) in the back. The sensor uses a beam of light between de emitter an detector to check if the path between both is being blocked by an opaque object.
KY010 Sensor Connection Diagram
Connect the power line (middle) and ground (left) to +5V and GND respectively. Connect signal (S) to pin 3 on the Arduino.
– (left)
GND
middle
+5V
S (right)
Pin 3
Package Includes:
1 x KY-010 Broken Light Blocking Sensor
Specifications
Model 
KY010
Sensor Type 
Broken Light Blocking Sensor
Operating Voltage
3.3 ~ 5V
Dimensions
18.5mm x 15mm
Weight 
5 grams