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 kΩ 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.
|Operating Voltage||3.3V to 5V|