LCD won't display

Discussion about my Wifi Radio project at http://mightyohm.com/wifiradio/ or my WL-520gU talk at NOTACON.
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sail4sea
Posts: 11
Joined: Sat Mar 05, 2011 11:33 pm

LCD won't display

Post by sail4sea »

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?
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mightyohm
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Re: LCD won't display

Post by mightyohm »

Do you know if the microcontroller circuit is working at all?

Also, make sure the LCD works at 5V.
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