[Arm-netbook] How best to get touch working on EOMA?
luke.leighton at gmail.com
Mon Dec 9 23:17:56 GMT 2013
On Mon, Dec 9, 2013 at 11:11 PM, joem <joem at martindale-electric.co.uk> wrote:
> On Mon, Dec 9, 2013 at 2:23 PM, joem <joem at 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...
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