I am buying a beagle board, either the C4 or the XM. I want to connect
a 12" LCD and either a Capacitive or Resistive multitouch digitizer.
My idea is to prototype a tablet that only takes notes from a stylus.
Any idea of all the parts I'd need to hook up the LCD and the
digitizer to the beagleboard? Also, which beagle board would you
suggest?
I'm on a team that is participating in our University's "Innovator of
the Year" competition. We have a EE major on the team, so I think
we'll be capable of doing whatever is necessary.
Thanks,
Eric
Eric,
choice of the board depends on your requirements. C4 board has slower
processor, less ram, but can boot from the on-board flash. xM has more
RAM and faster CPU, but can boot only from an SD card, is slightly
bigger and a bit more expensive than C4. I guess that the SD-only
booting is not an issue for a tablet project, so I think xM would be a
better choice.
Regarding the display and digitizer: you can easily connect any
display that has a DVI input. If you want to connect a "raw" lcd
panel, you will need an interface board.
For the digitizer, you can connect anything with a USB interface.
Finding a driver can be an issue, but I'm sure you will find a
supported touchpanel.
If multi touch is not a strong requirement and you can accept smaller
size display, you can build a nice, tightly integrated device using
one of the off-the-shelf LCD adapters, like ULCD lite, Beagle Touch or
BedaFrame.
regards,
j.