Schematic Diagram The internal pull-up (Pin.PULL_UP) in software replaces the need for an external pull-up resistor in this case, but the schematic uses external resistors for clarity. Disconnect all ...

Stepper motors use a cogged wheel and electromagnets to rotate the wheel one ‘step’ at a time. Each HIGH pulse sent to the A4988 stepper driver energises the coil, attracting the teeth closest to the ...