[kaighn80]

so in brief, i'm building a kit car, its using a 2.5l v6 ford duratec engine with turbo and all the goodies to get that to do what it does, this is being mounted mid engine rwd, obviously im running a speeduino ecu with this and an onboard raspberry pi4 for tunerstudio and pi-dash, but i need some advice as to how to get a speedometer working, the gearbox has a plug where i would have expected to see the old whirly type speedo cable, is it a case of supplying 5v and ground and then connecting the output wire to an i/o pin in the pi?

(admins) not sure this is the correct place to ask on the forum so please feel free to relocate.

thanks in advance for any help

[theonewithin]

Depends..
Is it a hall sensor (3 wire) or VR?

If the latter you. Red to feed the signal through a conditioner.

You also need to figure out how many impulse per km? I think it is.

[kaighn80]

3 wire thankfully

[martysport]

There's a high chance the hall sensor is fed with 12v (my Ford one is, as is my son's)
You will need a 5V pull up and it will connect to your ECU NOT the pi

[dazq]

Out of interest, what gearbox are you using with your engine?