photo interrupter is transmission type photo sensor that integrates optical receiving and transmitting elements in a single package please see the diagram below. Since the method involves light blocking commonly named photo interrupter. A long life infrared photo diodes is applied for output while a single photo transistor and photo IC are integrated on the other side for light detection.
Component Required
- Raspberry Pi / Banana Pi / Orange Pi (If your using Banana Pi or Orange See first the GPIO Pin Mapping)
- Photo Interrupter Light Blocking Module
- Solder Less Bread Board
- Jumper Wire / DuPont Wire
Wiring Guide (Click the Image to Enlarge)
Compiling & Uploading the Code
C Source Code
[crayon-672964dccb6b2595621980/]
Python Source Code
[crayon-672964dccb6bd813106796/]
Wiring Photo Interrupter Light Blocking Switch with Raspberry Pi
