Hello Everyone,
Looking for help to workout what and how to control the backlight of the Gravity LCD1602 blue V1.1.
Using the dfrgblcdpy python library I continually trigger errno 121 when writing to the chip/device with the RGB i2C address 0x6b. First call would be through self.bus.write_i2c_block_data.
I have tested other libraries, same result with no backlight light activation.
I assume Power (5V) and wiring to the module is good as the LCD will display text when using functions referencing the 0x3e LCD address.
Has anyone had a similar issues?
Should I be using both addresses, one for the LCD and RGB or just the LCD address? What I’ve lookup so far is not conclusive and contradictory. (could be just be my knowledge…)
Should I stick with it and try to resolve the error when referencing theRGB address?
