the motor controller is either fully on, or fully off, so the bot runs along at full speed, or doesn't move.
I tried using PWM to simulate speed control, but that just ends up with either jerky movement, or a buzzing motor and no movement.
I think in the case of the latter, the frequency is too high, and the motor doesn't have a chance in the power phase to move to another magnet before the power-off phase is reached and it jerks back
the motor controller is either fully on, or fully off, so the bot runs along at full speed, or doesn't move.
I tried using PWM to simulate speed control, but that just ends up with either jerky movement, or a buzzing motor and no movement.
I think in the case of the latter, the frequency is too high, and the motor doesn't have a chance in the power phase to move to another magnet before the power-off phase is reached and it jerks back