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Everything Else » LCD screen pinouts

December 28, 2010
by Hexorg
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Hi everyone :) I was wondering what are the rest of the pins in the LCD header that are not used but the NerdKit guide? Is there anyway I can find what pins match HD44780's datasheet?

December 28, 2010
by bretm
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Four of them are used for 8-bit data transfer mode, and one is used to read the status and character address. Wikipedia

December 28, 2010
by Hexorg
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Oh! So stuff like busy flag can actually be read as a data! I kept thinking one of the unused pins will be 0 when free and 1 when busy. Nevermind, thanks :)

December 28, 2010
by bpenglase
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During one of my Internet searches for something, I did happen across this PDF. This seems to be the same LCD that's used in the kit. Has some pinouts, dimensions, etc. Hopefully someone find this useful :)

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