Description:
      
     1. This is a light sensor with built-in photoresistor and 10K adjustable resistor that can be used to change the intensity threshold of the trigger signal by adjusting the adjustable resistor.
     Unit's GRVE interface can output digital signals or analog signals (voltage signals) corresponding to light intensity.
     When the light intensity is weak, the digital pin outputs a high level, that is, the digital signal "1", otherwise it outputs "0".
      
     Features:
      
     - 10K adjustable resistor
     - Analog or digital signal output
     - GROVE interface, support UIFlow programming,  programming
     - Unit has two built-in L ego plug-in holes for easy integration with Lego components
      
     Related Links:
      
     Channel video
     https://i.youku.com/i/UNjE1ODA2MzE0OA==?spm=a2hzp.8253869.0.0
     forum
     Http://forum.m5stack.com/
     Routine:
      routine:
     https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Unit/LIGHT/
     UIFlow routine:
     https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Unit/LIGHT/UIFlow
      
     Package Included:
      
     3 x GROVE Cable
     3 x Light Unit