hi i am looking into a project to create a speedo that uses a stepper motor, to do away with my analog one i have at present, i could rob something out of cd drive, or hhd. or take out a dash out of a scrap car for the stepper motors. i was planning to use a hall efect device mounted close to the propshaft and weld a trigger wheel to it, that would provide a signal.
i can obviously measure how many rotations of the propshaft equal to 1 mile.
its how to read in the frequency, which in turn then drives the stepper motor accordingly to read the correct speed?
any help or ideas appreciated
i can obviously measure how many rotations of the propshaft equal to 1 mile.
its how to read in the frequency, which in turn then drives the stepper motor accordingly to read the correct speed?
any help or ideas appreciated