Phidget about

Yesterday, I got the sensor resistance converted to voltage using this nifty tutorial from Sparkfun. A 1k ohm resistor seems to work best, since I want most of the sensitivity to be light pressure.

Today, the goal is to build a circuit with three channels that connects to the Phidgets voltage sensor. The only thing I’m wondering is if I’ll get the resolution with the voltage range I’m getting – Zero to about 2.5 volts. I’m estimating that I should get about 1500 – 3000 steps out of that, assuming -30v to +30v is resolved to a (unsigned?) 16-bit int.

Done!

ratsnest

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