barbagris
Mad Scientist
- Joined
- Aug 1, 2010
- Messages
- 12,988
- Location
- On the verge of insanity
- Ride
- 1979 Guzzi V1000G5 - 2018 KTM 790 Duke
@DEcosse may know what voltage the speedo pulse from the ECU is.Ah, I see.
The big problem for me at the moment is that the speedometer only shows a zero no matter the speed so I'm guessing that the pulse either is not at +5V or that I am missing something else.
No rev counters lying around unfortunately.
I'm thinking that I should be able to measure voltage between the speed signal wire and ground to see what the pulse looks like and then try to convert it using an Arduino in case it doesn't look like it should (e.g. +5V baseline and 0V pulse).
I have a few Koso (and other) devices lying about - these I have driven from non-koso software driven sensors with no issues at all - I will have a look at their spec sheets. and get back to you. - There MAY be a ground reference issue as well.