for two stepper motors using two L297 driver ICs. This circuit take control bits from computer parallel port or other I/O port with TTL signals
allows you to drive up to two 4-phase unipolar stepper motors connected to the parallel port. includes driver hardware circuit diagram and circuit board design.
uses a servo potentiometer to provide the necessary drive pulses for a stepping motor
slewing control for stepper motors that you use in sophisticated applications, such as monochromator movements in optical experiments
can be adapted to be controlled by a computer
control hardware and software examples.
High accuracy RPM-measurement with 68HC11.