Does anyone have any ideas to connect a Raspberry Pi to a 3.2" touchscreen display module from sainsmart? (or for any size touchscreen display for that matter)
Does anyone have any ideas to connect a Raspberry Pi to a 3.2" touchscreen display module from sainsmart? (or for any size touchscreen display for that matter)
You're talking about one of these, right?
This module already has a touchscreen controller onboard, so no need for any additional controllers.
Rodney, you're in luck. There has been a great deal of discussion and great work done on connecting these $16 displays. I will return and add more links, but the best site is:
https://github.com/notro/fbtft/wiki
These displays require more signals than the Raspberry Pi has available on the GPIO header, so you need to build a simple SPI interface. Notro describes how to build a discrete one, or you can use one of my Guzunty programmable IO devices:
https://github.com/Guzunty/Pi/wiki
I also made a daughter board which makes a nice neat 40 way ribbon cable connection. Here it is in action:
Thanks for the help Derek, i'll have it up and running soon 
Thanks Jamodio, that touch screen controller will come in handy one day 
