Q42 3 Pin Light Detection Digital Switch Mete Output Photosensitive Sensor Module lot(5 pcs)

Module Features: 

• Using the sensitive type photoresistor sensor 

• The comparator outputs a signal clean, good waveform driving ability more than 15mA. 

• With adjustable potentiometer can adjust the light intensity detected 

• The working voltage: 3.3V-5V 

• The output format: Digital switching output (0 and 1) 

• With a fixed bolt holes for easy installation 

• Small PCB board size: 3.2cm x 1.4cm 

• Using a wide woking voltage range LM393 comparator 

• Application: Light intensity is detected, the light intensity sensor, smart car search light module 

Module Instructions 

• Photosensitive resistor module most sensitive to environmental light, generally used to detect the 

• brightness of ambient light, triggering microcontroller or relay module; 

• When ambient light intensity does not reach the threshold value, the module DO-side output high 

• when the ambient light level exceeds the set threshold, DO terminal output low; 

• DO output can be directly connected to the microcontroller through the microcontroller to detect 

• high and low, thereby detecting the brightness of ambient light changes; 

• DO output can directly drive the relay module, which can be composed of a light control switch. 

• Product wiring instructions: 

• VCC for positive power supply 3.3-5V 

• GND for power supply is negative 

• DO TTL switching signal output