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VW speed sensor
Posted: Fri May 21, 2010 4:55 pm
by Juliemac
On the back of the speedo, VW added a hall effect sensor that is intended for the mfa.
Can this be used to feed speed readings to MS?
Re: VW speed sensor
Posted: Mon May 24, 2010 4:16 am
by Matt Cramer
Theoretically yes, but with current firmware you would need to build a frequency to voltage converter and bring the resulting signal in on JS4 or JS5.
Re: VW speed sensor
Posted: Mon May 31, 2010 11:24 am
by rocklizzard91
hmmmm this is quite interesting.
i had a question on how to get the speed sensor to work with MS a while back and got no replies.
how do you build the freq to voltage converter?
and a question to the origional poster- why do you want the speed to read in MS? just wondering
Re: VW speed sensor
Posted: Tue Jun 01, 2010 5:15 am
by Matt Cramer
Here's one example I've seen of a voltage to frequency converter circuit for VSS input. I have not tested this myself; you're on your own for making this one work.
Re: VW speed sensor
Posted: Sun Jun 13, 2010 11:00 pm
by rocklizzard91
wow. it looks scary!