Speed sensor calibration fixed in last update?

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Joel Defer

• July 15, 2021 18:09
• Edited

Quote from latest update: We’ve addressed bugs related to data accuracy and sensor connectivity. 
Does this mean the problem with autocalibration that calculates wheel circumference too high is fixed by this new update?

 

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  Malte Brieske

  • July 18, 2021 20:23

  Just tried it: Nope.
  The math behind it is just too complicated I suppose.

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  Joel Defer

  • July 18, 2021 21:13

  Really don’t understand this. Gps says, you ride x km, speed sensor says, your wheel did y rotations. x/y is wheel circumference. 
  No?

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  Gerard van Rijn

  • July 22, 2021 09:23
  • Edited

  Comment 'Just tried it: Nope' is too little info. Could be brand related 🕵️

  Read the article 'Known Bugs and Issues':

  https://support.hammerhead.io/hc/en-us/community/posts/360044025794-Known-Bugs-and-Issues

   

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  Malte Brieske

  • July 19, 2021 06:53

  I am using a Magene speed sensor. On my Garmin it auto-calibrates to a wheel circumference of 2096mm (which seems to fit quite well), the Karoo says that it's 2220mm. Before as well as after the update.
  But I did post this info before on this forum, and my comment "Nope" was absolutely adequate to answer the OPs question: No, this issue has obviously not been worked on.

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  Gerard van Rijn

  • July 22, 2021 09:32
  • Edited

  Hi Malte, 

  Read the article 'Known Bugs and Issues' about speed sensor issue;

  The issue is more prominent on some specific brands of sensors. We are collecting more information to find the root cause or any related pattern. Please share the details of your setup on this form “Auto-wheel circumference inaccuracies”. https://docs.google.com/forms/d/e/1FAIpQLSfWU6OJBl68-5ush6netTcnWIetVvqJXdxTV2I5L7nGCVxs2w/viewform

  As of now, use a manual calibration for more accurate distance calculation.

  https://support.hammerhead.io/hc/en-us/community/posts/360044025794-Known-Bugs-and-Issues

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