Marks256
New Member
I just bought a 20x4 LCD on ebay (**broken link removed**) advertised to use an HD44780. I just recently got around to testing to see it work, and it doesn't! I placed it in a circuit that i know works, and even tested it with another 20x4 HD44780 LCD, and the circuit works great. But the new lcd i bought just displays gibberish!
I'm really not sure what the problem could be? Does anyone have an explanation for why 2 HD44780's wouldn't work in the same circuit? Maybe i'm over looking something...
I'm really not sure what the problem could be? Does anyone have an explanation for why 2 HD44780's wouldn't work in the same circuit? Maybe i'm over looking something...