Hey!
I have a touch screen shield. That I want to use with an Uno or Mega. But I also want to be able to send IR signals.
But from what I understand of sending IR signals, on the Uno, you need to use pin 3. And for the Mega pin 9. (I think)
So the shield covers those pins. But is there a way to do this?
If you want, you don't need to teach me how, but point me towards some tutorials?
Or maybe do I need to not use a shield and just get a touch screen and hook it up without a shield?
Thanks!
How do you do anything else with a touch screen shield installed? Think about... all the pins are blocked, not a few specific ones. Any shield will limit what you can do overall. Bodge wires are about the only solution or a prototype shield board in between the cpu and the touch screen.
Now, since you’re okay with a shield, you’re probably okay with a 2 point something inch screen. If that’s the case, I’d say ditch the shield and use one of the ILI9341 SPI touch screens that are available in 2.2/2.4 and 2.8 inch sizes. Much easier to use, five wires and most have an SD card socket that can be used to store graphics bitmaps.
IMO, the Uno isn’t a great candidate for GUI projects due to the limited memory. Of course YMMV.