KY-018 Photosensitive Resistor Module

Arduino KY-018 Photoresistor module, used to measure light intensity. It can determine the presence or absence of light.

This module consists of a photoresistor and a 10 kOhm in-line resistor. The photoresistor's resistance will decrease in the presence of light and increase in the absence of it. The output is analog and determines the intensity of light.