2X16 LCD shield and Arduino Due

by dadjplh on Wed Feb 20, 2013 1:46 pm

Hello,
I am using this shield on my UNO R3. I am very satisfied. Aside from its primary intended use for displaying info related to my application, It has proven an indispensable tool for debugging. It is very easy to build and use, ties only two pins of the UNO and its display is bright and readable from a distance.
I suspect that the current shield does not work with the DUE because of the 3.3 volt limit. Is that right?
Do you plan to have one in the near future, and what about the libraries ?
Thanks
Jean-Pierre
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Re: 2X16 LCD shield and Arduino Due

by adafruit_support_rick on Wed Feb 20, 2013 3:05 pm

I don't know if anyone has actually tested it yet, but the shield ought to be compatible with the Due. However, the libraries will need to be ported. I don't have a time-frame for when that might be done.
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Re: 2X16 LCD shield and Arduino Due

by adafruit on Thu Feb 21, 2013 12:33 pm

The good news is that the due uses 3v signal but has 5v power, but the port expander is 3.3v compatible and is powered by the 5v pins so -hardware wise- it should be fine. if the Wire library is ported correctly it ought to 'just work' but we havent actually tested it ourselves. If someone gets a chance to test it and report back that would be great :)
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Re: 2X16 LCD shield and Arduino Due

by upstreammuse on Sat Apr 20, 2013 11:56 am

The shield code almost compiled out of the box. I just had to define _BV. But the shield backlight isn't lighting, and after playing with the contrast pot, all I can see is a row of white blocks on a black background.
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Re: 2X16 LCD shield and Arduino Due

by adafruit_support_mike on Sat Apr 20, 2013 10:15 pm

Thanks for the update. Looks like we'll have to poke it a little.
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Re: 2X16 LCD shield and Arduino Due

by adafruit_support_rick on Sun Apr 21, 2013 9:53 am

Arduino 1.5.2 is really not ready for prime-time. I've been working on porting the 2.8" TFTLCD shield/breakout library, and I know that 1.5.2 has some errors in pin mapping. They've been sitting on 1.5.2 for a long time now, so I'm going to guess that the next release will see a lot of improvement.
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Re: 2X16 LCD shield and Arduino Due

by upstreammuse on Mon Apr 22, 2013 11:19 pm

Thanks for checking it out. Definitely looking forward to an updated Arduino release.
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