The difference between the step motor and dc motor
There have difference control manner, control of stepping motor is similar to digital circuit, needs a beat (similar to the digital tube display, single chip cycle parallel output certain values, according to certain rhythm.),
Commonly used small, can use ULN2003 stepper motor drive, and a much higher working current of dc motor, general small dc motors with a dedicated driver chip driver L298N, general output PWM wave to control by single chip microcomputer control.
Stepper motor and dc motor in the electrical machinery is a completely different type of motor, dc motor as long as plus appropriate voltage will turn, and turn laps is difficult to precisely control; The stepping motor works by the beat, and can rotate the tiny angles (for example, 0.1 degrees).
