Electric racing car - DC motor car motor driver board suitable for MSP432

The motor driver board I previously made for an electric racing car included current detection, two H-bridges, and a charging circuit. The DCDC in the driver board uses the dcdc module, you can also draw it yourself. The driver board is compatible with MSP432 and 430. Because I haven’t built a car in the electronic competition in 2021, I did question C this year and got good results. The driver board is open source. A two-string battery charging circuit is integrated on the driver board. It supports fast charging, and you can also plug in a power bank and let the car run on its back. The power supply for the motor H-bridge circuit is provided by the battery boosting to 12V. Otherwise, the status of the car changes with the battery voltage. (If it is a competition question with a relatively high conversion rate, you can directly short-circuit the input and output of the 12v dc-dc module.)

Note: The two dc-dc modules were purchased on Taobao to save trouble. However, it is not recommended to draw them directly on the board as they are inconvenient to replace. It is recommended to change to a direct plug-in module.

The power interface on the side can power other task boards. You can also connect external dc-dc. This time the 5v module burned, and an external DC-DC was connected through this interface.

Because I didn’t have a corner T-shaped power holder on hand, the T-shaped power holder needs to be welded on the board like this. It is recommended to replace it! ! ! ! ! !

A total of three versions have been changed, and the test is OK, but the photos cannot be found.