Joy-IT KY-033
The sensor detects if a light reflecting or absorbing area is in front of it. It shows which of the 2 areas it is via digital output, as you can see in the picture below.KY-033 Tracking sensor module KY-033 Tracking sensor module Contents 1 Picture ................................................................................................................................................................. 1 2 Technical data / Short description ....................................................................................................................... 1 3 Pinout ................................................................................................................................................................... 3 4 Code example Arduino ......................................................................................................................................... 3 5 Code example Raspberry Pi ................................................................................................................................. 4 Picture Technical data / Short description The Sensitivity (minimum range) of the sensor can be adjusted by the controller.