In stock only 
Photoresistor Light Detection Sensor Module
Description
Description
Features:
1. The module has a photosensitive resistance sensor
2. TTL output capable of 15 ma.
3. On-board adjustable potentiometer for adjusting trigger level of light
4. Working voltage of 3.3 V - 5 V
5. Output form: digital output high or low
6. AO output provides a analogue output
7. With fixing holes for convenient installation
8. Small board PCB size: 3.2 cm x 1.4 cm
Module Operation
1) When the sensor has not reached the desired light level the DO output is HIGH, when the light level has reached the trigger point the output goes LOW.
2) DO output port can be connected to a microcomputer for further processing
1. VCC positive power supply 3.3-5V
2. GND power supply is negative
3. DO TTL switching signal output
4). AO provides an analogue output
