So here is what I am trying to do. I am trying to calibrate my speedo using an Arduino
I am programming the Arduino to start the calibration. Send the 2 miles of pulses to the speedo. Then end the calibration
I am looking for a check on my calculation for how many pulses I need for a mile
my car is not finished yet to hit the road
according to the instructions you calibrate the speedo by getting into the ppm menu. press the button to start the calibration, driving for 2 miles, and then press the button to stop the calibrations.
The speedo takes a signal off the electronic sending unit from the transmission
So here is what I am looking for, Pulses Per Mile (PPM)
I came up with 33,469.48473 PPM
here is what I have
Nitto NT555 315/35ZR17. Tire Diameter from Nittos website of 25.67
rear gear ratio of 3.55
Tremec TKO TCET5008 has a output shaft with a sending ring with 12 teeth, 12 pulses per one revolution of output shaft
FFR speed hut speedo
Thanks