I purchased the I2C 16x2 RGB LCD Pi Plate with the 16x2 display. I installed the software in the tutorial. The LCDtest.py program runs successfully. All the colors are rotate through, and the correct buttons work correctly.
However, no text is displayed, and no black boxes are present when the Pot is turned to the extreme in either direction.
What may I have done wrong here? Pictures of soldering attached.
I2C 16x2 RGB LCD Pi Plate - no text
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I2C 16x2 RGB LCD Pi Plate - no text
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Re: I2C 16x2 RGB LCD Pi Plate - no text
The soldering on the LCD pins is not adequate. Go over those pins again and make sure that the solder flows completely over the pad.
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Re: I2C 16x2 RGB LCD Pi Plate - no text
Thank you. That solved my problem!
Please be positive and constructive with your questions and comments.