1 Using photosensitive resistance sensor sensitive type;. 1 Pcs Photosensitive Resistance Sensor Module. 4 the DO output can be directly driven our relay module, which can form a light-operated switch.
2pcs LM393 Optical Sensitive Light Detection Photosensitive Sensor 4-pin 3-pin
20PCS Photosensitive Resistance LDR 5MM Light Sensitive Resistance for Arduino
20PCS Photosensitive Resistance LDR 5MM Light Sensitive Resistance for Arduino U