Micro:bit Photosensitive Sensor Module Light Detection Brightness

Introduction of Photosensitive moduleMore info for you to download1 Working principlePhotosensitive sensors are one of the most common sensors They are mainly used in photocells photo multiplier tubes photo resistors photo transistors solar cells infrared sensors ultraviolet sensors fiber optic sensors color sensors CCDs and CMOS image sensor etc This module is a photosensitive resistor as a sensor which convert an optical signal into an electrical signal by photo resistor The analog value of the photosensitive module output ranges from 0 to 1023 The stronger the light intensity the OUT will output smaller the analog value When the light intensity is weak the OUT will output bigger the analog value 2 Practical application2 1 Circuit monitoring switch2 2 automatic lighting 3 About module3 1 Photosensitive module possess 4 Alligator clip port Corresponding to GND VCC NC and OUT OUT pin is the signal output pins of the module 3 2 4 pin female socket 3 3 PH2 0 cable interface The photosensitive sensor detects the illumination intensity of the current environment The stronger the illumination intensity OUT pin will output smaller value The weaker the illumination intensity OUT pin will output larger value Working Voltage 3 3V 5V