I have built 15 DIY force sensors: copper fabric/velostat/copper fabric sandwich, one side to 5v, the other to pin via pulldown 220R. If I connect them all in series, ie 15 x 220R (common ground) running off a single 5v pin, should I expect the same response off each sensor?
Or will the current vary (reduce) from sensor 1 to sensor 15.
Should I use 15 digital pins (OUTPUT, HIGH) to power each sensor with its own 5v?
My other error was assuming that sensor1 would get 5v (being physically closest to the 5v pin) and sensor 15 would get something less than 5v, being furthest away.