The project uses STM32F103RCT6 as the main control to achieve closed-loop speed control of the four-channel encoded motor. USB is reserved as a virtual serial port to upload the speed, which is convenient for observing the speed with an anonymous host computer. The serial port is reserved, and the host sends the speed to the motor control board through the serial port. Speed control can be achieved. 4bits DIP switch is reserved for expansion. Can detect battery voltage.
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