It works. It does what it's supposed to, as long as I'm sitting on it properly. Sounds like Apple made it, no? Except they'd make the pad white.

I changed the code to make the red light come on when I'm supposedly sitting on the FSR. For some reason, this light blinks when powered from a wall wart whether force is applied or not. When plugged into a computer, it produces the expected bootloader ready blinkenlight, but is silent after that period.

I'm scheming to extend size of the the force-sensing area without compromising the FSR. Wish me luck.