Digital to OI Analog

[marcan]

Originally Posted by Don Rotolo

If you understand what the Joysticks do, then you'll better understand what the OI expects to see.

There are many different ways to measure a 100K resistor. Short of a digital potentiometer (which is a good universal solution), it's difficult to emulate a variable reistor using digital data, if you don't know how it is measured. For example, if the OI used a charging capacitor (measuring the time), it would require a different interface than if it used a simple analog voltage measurement.