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[Bug] Jerky motor movement, especially on low speeds ? #366

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@Vinz1911

Description

@Vinz1911

Describe the bug
I'm not sure if this is a "Bug" but I discovered a jerky motor movement on Technic Hub and on Spike/Inventor Hub. It looks Like that the motors are not linear turning, they frequently stutter. If I'm using Motor class only or drive base makes no difference. I discovered that also on higher speeds but on lower speeds you can see it much better.

I testet the original lego firmwares to check if this is a normal behavior but with the original firmwares the problem does not exists. I made two videos, one with the lego firmware and one with the latest Pybricks Firmware.

To reproduce
Steps to reproduce the behavior:
just create a motor instance in code and let them turn.

Expected behavior
same fluently linear turning like the original firmware

Screenshots
I created two videos, one with original fw and one with pybricks fw. I hope you can see what I mean.

Original.FW.mp4
Pybricks.FW.mp4

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