On Mon, 2013-12-09 at 23:17 +0000, luke.leighton wrote:
On Mon, Dec 9, 2013 at 11:11 PM, joem joem@martindale-electric.co.uk wrote:
On Mon, Dec 9, 2013 at 2:23 PM, joem joem@martindale-electric.co.uk wrote:
I got a couple of capacitive panels coming - will soon be able to try out the suggestions - thanks.
do you know which make/models? do they have the ICs on a thin-film circuit already? if not... you're in for... a lot of cat-on-hot-nails dancing [i.e. if they're "bare" capacitive panels with say 10 horizontal lines and 15 vertical ones and no IC].
i _was_ going to do that with an STM32F (say) - one of the big ones: do the timings and set up an RC circuit manually then scan them from software. after realising quite how small the capacitance actually is on these panels, i am *really* glad i didn't go that route. FT, Goodix and Atmel have some hellishly-complex algorithms in the firmware of those ICs...
At present no idea what is coming - they are being sent by a factory interested in having their stuff deployed on allwinner Linux computers.
(As as aside, it would be good to out the "hellishly-complex" algorithms with an open sourced controller project. Everyone can benefit including those lumbered with hellish-complex algorithm design.)