For a bit more background, I need a way to display the fuel level in my rally car and the stock method isn't going to work any more.
It is the float in the fuel tank which gives the 15ohms to 195ohms range.
I have looked at the similar projects on this forum but still can't figure out how to make it work for me in particular.
I've been doing a bit more research and think now that I will have to put a voltage regulator in to deal with the variable voltage that a battery (or a feed from the car, i'm not fussed which really) will produce. Is that correct?