Doubts About Grab Converter RPM-SPEED-GEAR-Laptime

[adrianovrm]

Masters of the X-SIM, aid me !


I was already making my electronic work and has helped two colleagues to advance their projects , but much of it could do to the nail , programming for arduino , and guessing things X -sim , recently saw some videos there of the manuals , and noticed that despite having the schema ODBII , I can also take input from current gear , speed , amount of fuel , rpm and lap times at uso through the variables , axes , I use one axis for each information just learned to do so , l just lnow to do this way. I'll try to explain my doubts : let's say in the case of speed, how do I capture the exact speed of the car , it would be so ? lets say that I take the 8-bit value that goes from 0 to 255 and put there in math than the maximum speed is 400 . How do I calculate the exact speed ? would speed value received * (400/ 255) , would be like that ? Another question , as it would be in relation to march? I should put in the maximum value of the axis of the march 7 ? and for the lap times , how can I capture this? L can read the values in serial of the arduino, but interpret it have been an torture ! could you aid me ? With the word, the MASTERS OF X-sim !