Sell GL55 LDR Photoresistor Light Dependent Resistor Sensor Module / Light Sun Sensitive / Detection Resistor for Arduino best price

[Package includes] 1x LDR Photosensitive Resistance Sensor Module [Features] The photosensitive resistance module's most sensitive to ambient light, generally used to detect the environment around the brightness of the light, or MCU trigger relay module, etc.; Module in the environment light intensity short of setting threshold, output high level DO end, when the environment light intensity more than set threshold, output DO low level; The DO output can be attached directly to the single chip microcomputer, through single chip microcomputer to detect the high and low level, thus to detect the environment light intensity change; The DO output can be directly driven our relay module, which can form a light-operated switch; [Specification] Powe: 3.3V to 5V Chip: LM393 Signal: Active Low Output (When light detected, output change to low and LED on)