Can not stop the VESC

Hi, I am using the Focbox to build a robocar. I have some questions I hope you guys can help me. I know most of you are building skate board, but you guys use the Focbox a lot so your expertise may help me. For my car, I send some computer messages to the Focbox to navigate the car. Once I stop sending the message, the car will stop immediately. Recently I found, however, it was no longer the case. Even when I stop sending message, the car continue move, at a slower speed. This is a big problem for me. Do you know why?

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How are you sending your commands?

Computer messages, obviously.

jk.

@AutoCar

Pretty sure that means USB?

So you are in the VESC tool or other means of interfacing from PC to VESC?

Not hooked up to a Arduino or other microcontroller?

A good simple play would be to use normal RC multi channel Receivers PWM output to VESCs