Hi so my project is LS1 T56 6 speed manual into a old Holden. I would like to keep the original dash and gauges and program a mirco controller to receive the two pulse count per rotation Hall effect sensor to drive a small 5v dc 2000rpm max dc motor. My plan is to also have feed back from the dc motor via optocoupler. The mechanical speedometer works out that at 60mph 1000rpm is required. I also require some fine tuning. I can PWM from a frequency but I can't really figure out the complex maths required to convert the opto feed v Hall effect and convert to duty cycle.
Your help would be greatly appreciated
Your help would be greatly appreciated