What is the difference between stepping motor and DC motor, I want to control it with MCU, I wonder what's the difference between them. What is the mode of control?
Control methods are different, stepper motor control is similar to digital circuits, you need to have a rhythm (similar to digital tube display, microcontroller cycle parallel output some value, driven by a certain rhythm) Small steps, common motor can use the ULN2003 driver, and the working current of DC motor is much larger, generally small DC motor with special L298N this kind of driver control, when the commonly used SCM to output PWM wave control.
Stepper motor and DC motor are based on their respective motors to increase the speed reducer (gear), you can speed down, in this regard, the role of deceleration device is similar.
Stepper motor and DC motor in the motor in completely belong to different types, as long as the DC motor voltage will be coupled with the right turn, but turn laps difficult to precisely control; and the stepper motor according to the rhythm of work, can rotate the minimum angle (0.1 degrees).
DC motor speed is very high, sometimes every minute can reach hundreds to thousands of revolutions, this rate put forward high requirements for real-time control system of the control system, if not, it will cause out of control.After the deceleration device is added, the speed of the motor is greatly decreased, and sometimes it can be reduced to 36-200 rpm. It is relatively easy to operate the motor with single chip microcomputer.For example, if you do the smart car, with a general DC motor, to control the motor running, turning, obstacle avoidance will have considerable difficulty, easy deviation, but if you use the DC decelerating motor, the control is quite easy.
