I’ve seen reference to resources that permit one to use the video input of an analog gauge and converts it to a digital representation of same.
IOW, a video stream of an analog gauge is converted to digital output.
The result is the ability to train a cheap ‘camera’ (CCD?) on any analog gauge and get text-based output (digital) of whatever the gauge is currently displaying.
I’m hoping someone can point me to the best starting point for such a technique. And alas, in this case, ‘me’ = someone not yet initiated into the ways the Arduino.