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High Pitch Noise


OneWheel

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Hearing "louder" High Pitch Noise from ninebot one , battery at around 40%, firmware 1.3.5 . Is a disgrunted ninebot employee making coding mistakes in firmware? this is crazy.

So loud may even hear while outside. Crazy ninebot people.

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The current theory is that they changed the motor driving PWM-frequency in the newer firmware, no idea why though. Around 8kHz, if memory serves? There's a topic (or at least it was discussed in some topic) somewhere in this sub-forum.

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  • 3 weeks later...

Mine came with version 1.2.5, rode it a couple miles worked fine then updated to 1.3.5 and I can hear the motor more but I like it because it sounds and feels a little more powerful.  I actually wish it had more of a powerful hum.

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I'm thinking that it could play through the speaker as you drive, instead of music, it could be like the sound of a jet turbine winding up or a motocross bike or just a high power motor working.  Who needs beeps when you can tell the motor is giving it's all.  Like Firewheel, but instead of a voice saying slow down it would be motor sound.

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