Anyone else experiencing bad displays? In two orders I have 3 of 3 bad and 1 of 2 (4 out of 5). Displays light up, display the standard two rows of squares, then nothing. The contrast has been adjusted, all it does it erase the squares. No characters show up. These displays are plugged into a lab un…

Multiple bad 4x20 displays

Topic		Replies	Views
I2C 20x4 Displays	19	15519	May 6, 2021
HD44870 I2C LCD 16x2.. problems Displays	18	2699	May 6, 2021
20x4 I2C LCD Display setup Displays	14	7217	May 6, 2021
Can't get I2C display to work Displays	16	4511	May 6, 2021
Can't get 20x4 i2c display working Programming	25	23707	May 5, 2021