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Grove - LCD RGB Backlight

  1. Characters cannot be displayed
  • Please make sure you have downloaded the correct library and the Grove wire is connected to the I2C Port. 
  • The working voltage of Grove - LCD RGB Backlight is 5V. So switch to 5V power while you are using Base shield V2. 
  2.  How to adjust the contrast
  • R7 on the back can be used to adjust the contrast. When it's replaced by a larger resistor, the back-base color will become more light.

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