Zwift inaccuracies

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pvnisher
Posts: 1723
Joined: 9/28/2006
Trip Reports (8)
 

Zwift inaccuracies

Post by pvnisher »

My wife has been using zwift, loves it.
When she connects to her phone the power reads correctly from her pedals (assioma uno).
When she connects to the laptop to run Zwift, the power is suddenly much higher.
Like, she's going 30mph without hardly trying.

It's a single power meter pedal (left), so the overall output is doubled. That's a setting in in the pedal software, and it works just fine when using a phone.

But somehow when using a computer the number is way off.
I don't understand, it should just be getting the same power data.
Is there some setting to change? It's the same account on the phone or laptop, same pedals, etc.

Is the laptop version different than the mobile and requires different settings??
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cedica
Posts: 725
Joined: 6/25/2014
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Re: Zwift inaccuracies

Post by cedica »

Never seen that particular power meter and the software, so just spitballing here:
1. Is crank length set the same on both devices?
2. Can you pick the sampling rate in the application, or it just defaults to certain value?
pvnisher
Posts: 1723
Joined: 9/28/2006
Trip Reports (8)
 

Re: Zwift inaccuracies

Post by pvnisher »

Found the issue.
It didn't manifest over ant+, just Bluetooth.
Some devices were either neglecting or misinterpreting the signal to double, halve, or accurately read the signal.
Have to use the pedal app to either done it's reported output (when the device halves it), or vice versa.
Not a big deal if you stick with one device, but if you use a phone, laptop, or bike computer on different days and they each interpret differently it's just a small annoyance.

I say it's a great way to get some 1000 watt sprints and win all the segments.
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