Data Sheet

The POT command allows users to read resistive components and

sensors.

POT Pin, Scale, Var

The commands reads a resistive device on one of the I/O Pin

specified in the command. Resistance is measure by timing the

discharge of a capacitor through the resistive component

(typically 5-50K). Scale is used to adjust the resistor-

capacitor (RC) constant.

Setting Scale:

Scale is determined experimentally. Set the sensor to be a maxi-

mum resistance and read the outputted value with the scale set

to 255. Under these conditions the numeric value outputted will

be the approximate value to use in Scale.