I wanted to integrate a similar style of touch pad in my project. Already using a microcontroller with some free pins, not round rather I'de prefer vertical like the Creative Zen Touch.
I found the company that makes them but I think it should be rather easy to reproduce, just not sure whats going on behind the tocuhpad.
Look here,
**broken link removed**
I'm not sure what kind of circuit they have connecting each lighining bolt pad. They're site says its capacitive, but does it NEED to be ?? Or how much work would really be put into a capactive cirucit anyway ?
I only have say 8 or 9 buttons layed out vertically, that should only be a single adc read then a data lookup no ?
I found the company that makes them but I think it should be rather easy to reproduce, just not sure whats going on behind the tocuhpad.
Look here,
**broken link removed**
I'm not sure what kind of circuit they have connecting each lighining bolt pad. They're site says its capacitive, but does it NEED to be ?? Or how much work would really be put into a capactive cirucit anyway ?
I only have say 8 or 9 buttons layed out vertically, that should only be a single adc read then a data lookup no ?