I only obtain the data FFFFFF from the motor.
That suggest to me that you haven't fixed your code, and that you're reading -1 == "No serial data available" from your port.
Please post your code.
I only obtain the data FFFFFF from the motor.
That suggest to me that you haven't fixed your code, and that you're reading -1 == "No serial data available" from your port.
Please post your code.