Programming a Potentiometer

[mmaunu]

You can map the values from the potentiometer without testing them, but I would only feel really good about it after verifying the numbers on the pot itself. You can map the values by taking the range of the pot's motion (for a 270 degree pot, this would be 270) and dividing it by the max output power (probably 5 Volts).

270/5 gives you 54 degrees per volt. One end of the pot will read 0 volts and a rotation of 54 degrees should give you a reading of 1 volt. This assumes that it is a linear pot (as opposed to a logarithmic pot).

With the AnalogChannel class, you can get the voltage or the scaled analog value (which is in the range 0 to 1023). The AnalogPotentiometer class gives the voltage by default and has a constructor that allows you to scale the values to more meaningful units.

Sorry if this is scattered...I am doing it between bits of teaching