Aftar conceting this, the driver get very hot because this stepper motor is 1 Amp, and driver can give 0.6Amp per chanel better to get more powerful driver like L298N what can give up to 2Amp pe ...

We need bi-directional control with variable speed (with PWM with up to 255 Resolution). The mode of operation we re looking forward to is closer to the classic L293D motor driver in terms of PWM ...