Will this stepper motor driver can be directly connected to the 5V microcontroller IO port control?
In fact, the stepper motor has internal optocoupler, can use the MCU I0 port directly drive, pay attention: Yin and Yang and the current limiting mode.
But for the stability of single chip microcomputer and the circuit, the anti-interference is considered, generally controlled by the single chip microcomputer, the optocoupler is driven by the optocoupler
In general, such stepper motor uses 12-24V DC control, and its DIR, PULSE and EN signals can be directly driven by the microcontroller IO port
