Old car/engine, non ODB, how to get RPM/speed/temp/etc into carputer
OK guys, I'd like to get some good information, and possibly some hardware/software solutions to this problem :)
Now, things that will be needed are:
Temp (coolant, oil, whatever)
and others (any suggestions)
Now, on most older cars, with analogue dashes, many of these are controlled by a voltage/signal going into the back of the instruments. The only "mechanical" one of these would be the speed, which will come in via (normally) a cable attached to the gearbox, which spins to give a readout on the speedo.
For a totally digital dash, these values would need to be read by the PC, and output to the screen. I am willing to try to write custom software to do this (probably in VB, as it's the only real thing I know), but I need some help with the hardware part.
What would be useful is some kind of hardware to get all these (probably voltage) signals into the PC in a format that can be read. The ones that will need most attention, and the quickest update, will be speed/rpm.
This is a throwout to everyone to help! ;)