Raquel, Yes, I have been getting the two black lines pretty much consistently. I was expecting to see some sort of startup screen, but I get the two lines as soon as I power it up. I know that the device has been fully functional in the past, but it must have gotten damaged at some time. Troy, The r...

Can I use the LK204-25 REV1.23 with an Arduino. I've tried many different code scripts and none seem to work. I tried adding a pull-up resister to the data pins. I tried adjusting for the 7-bit addressing. Nothing seems to work. I only get two black lines on the LCD display. I am guessing that the p...