We seem to have gone off subject slightly!
The thread was to build a fuel level indicator as cheaply as possible.
I appreciate Gordons concerns that we should all be aware of what we are doing in the air and that we should be more alert to our fuel consumption.
However, I need glasses to read but not to see any distance so to check my fuel I would have to get out my glasses, and try to look into a small piece of mirror at a clear fluid in a opaque plastic container and work out which 'litre' mark it was at!
The alternative is to have a LED indication as to the 'spend rate' as I fly.
I see no problem with this and at the moment, I am thinking of using 3 float or optic switches set at possibly 6, 4 and 2 litres (not decided yet) with a LED indicator for each one. The float switches would probably need a voltage stabiliser
to stop the LEDs going on and off as I fly through any turbulance.
Ben, can you let me have the RS part numbers for what you have found please.
Cheers
Eddie