Trolley driving plate

The utility model provides a dolly driver board, which comprises an stm32f103c8t6 core board and a serial port debugging circuit connected with the stm32f103c8t6 core board, the serial port debugging circuit comprises a CH340 chip and a USB interface, an RXD pin and a TXD pin of the CH340 chip are respectively connected with an A9 pin and an A10 pin of the stm32f103c8t6 core board, and a UD + pin and a UD-pin of the CH340 chip are respectively connected with a D + pin and a D-pin of the USB interface. A pin B5, a pin C13, a pin C14 and a pin C15 of the stm32f103c8t6 core board are connected with the first key, the second key, the third key and the fourth key respectively and used for providing external interruption through the first key, the second key, the third key and the fourth key to conduct parameter debugging. 本实用新型提供一种小车驱动板，包括stm32f103c8t6核心板，还包括与所述stm32f103c8t6核心板连接的串口调试电路，所述串口调试电路包括CH340芯片和USB接口，所述CH340芯片的RXD、TXD引脚分别与stm32f103c8t6的A9、A10引脚连接，所述CH340芯片的UD+、UD-引脚分别与所述USB接口的D+、D-引脚连接；且所述stm32f103c8t6核心