On 12/12/2014 4:57 PM, Asa DeBuck wrote: > I'm looking for an LCD Cape that is compatible with CRAMPS or BeBoPr > I was looking at. > http://www.amazon.com/WaveShare-BeagleBone-Black-Accessories-Development/dp/B00PRTR04S/ref=sr_1_21?ie=UTF8&qid=1418424978&sr=8-21&keywords=beagleboard+black
That looks like it ought to work fine, although I didn't see a schematic. Since it doesn't have buttons it's less likely to cause any pin conflicts. It looks like it's got an analog touch-screen, so that might interfere with other ADC inputs (for thermistors), you'll want to check. If that's a problem, the BeBoPr supports using a dedicated ADC, leaving the on-chip ADC free for touch screen and producing better results than the on-chip ADC which is a bit noisy. Most any of the available LCD capes I've seen would work if you don't need the buttons (or can live without whatever the button GPIO pins do on the BeBoPr/CRAMPS boards). The BeBoPr is more likely to have free I/O available for LCD buttons if you need them than the CRAMPS (which uses most of the available I/O pins). Either way, if there's an overlap with the button GPIO pins, you'll probably have to do some device-tree overlay hacking, but that's straight-forward enough. As for the LCD itself, I typically run with HDMI enabled, and the LCD capes typically use the same I/O pins, so that's not a problem. If you're wanting to run a UI on the LCD, make sure you've got enough pixels (or are prepared to craft your own UI if you're using something like Machinekit). It's annoying to have half of the UI scrolled off the right or bottom of the display! :) -- Charles Steinkuehler [email protected] -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
