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Since originally posting I have got a hold of an Arduino Mega and am I am awaiting receipt of a couple of voltage converters 12v>3.3v ( for the variable voltage the oil 0-100c and water temp 0-120c senders delivers) and a 3.3v 0-100psi pressure sensor for the oil with a view of another for the fuel pressure (0-15psi) ...
....... I have set up a dummy code set on the 2 x 40 character display I also got hold of.... and this is formatting perfectly.... hopefully I can convert the voltages to pressures & temperatures to display since the board has a gazillion analogue inputs!
The tachograph will need more work (hall-effect boards on ebay?), ditto a detector on the speedo cable (I might resort to a magnet fastened to the CV joint instead.)
I will report back as things come together
Dr B
Southampton UK
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