I am having trouble getting the LCD to display. It is always lit up with no lettering. I know there is a signal coming off the pins where the lcd is connected to the avr because I took off the lcd and put leds in place of the db4 -db7 bus lines and they blinked, so the avr is doing something. I am using the same model of lcd display as the part seven tutorial, except I opted for the red on black that lady ada had.
Could it be a bad lcd, or did I do something really wrong to it?
LCD won't display
Re: LCD won't display
Do you know if the microcontroller circuit is working at all?
Also, make sure the LCD works at 5V.
Also, make sure the LCD works at 5V.
Jeff Keyzer
http://mightyohm.com
http://mightyohm.com