QTouch library for AT91SAM3S-EK board version B.

Burst pulses 5 CPU cycles wide.

Slider on pins PA0, PA1, PA2, PA3, PA4, PA5

A Valid key on pins PC22 and PC23
A UP key    on pins PC24 and PC25
A Down key  on pins PC26 and PC27
A Left key  on pins PC28 and PC29
A right key on pins PC30 and PC31
