Support for Dual Motor Control with Hall Sensors and Potentiometer Input

[liyui1104]

Hi,
First of all, thank you for your incredible work on the MESC_Firmware project. Your contributions to the motor control community are highly appreciated!
I have a motor control board based on the STM32F405RGTx (project link: MP2-DFN). I am using two brushless DC motors (24V, interfaces W V U) with Hall encoders (5V, interfaces HW HV HU) and would like to control them using two potentiometers to adjust their speeds via PWM signals.

Could you please guide me on how to adapt the MESC_Firmware for this setup? Specifically, I need assistance with:

1. Modifying the firmware to support dual motor control with Hall sensors.
2. Wiring the motors and potentiometers correctly to the STM32F405RGTx.
3. Configuring the firmware to interpret the potentiometer inputs as PWM control signals.

Any advice on the necessary code changes and wiring setup would be immensely helpful.
Thank you again for your amazing work and support!
Best regards.

[davidmolony]

For some reason this issue didn't appear for a year in my inbox then suddenly did.

For dual motor control, you just need to assign a second motor control timer (timer 8) and map ADCs and triggers. The encoder timer is optional since hall sensors don't use it. They just need (ideally 3 consecutive) gpios.

This isn't hard but there's no demo for it since the only dual boards i have are for stepper motors.

You would need gate drivers with their own complimentary output such as ncp5104, but this is only for relatively small MOSFETs.

If this is for a business application, you can reach out to dynamesys where we actively develop applications based on this or VESC or any other publicly available platform. If this is for a home project... You might well get better mileage with 2 boards and 2 mcus