Broadcast advertisement and Manufacturer data format

[jcaude]

Platform your question concerns:

• Android
• iOS
• Other
• Platform is not relevant for this question

Device:

• Polar OH1
• Polar Verity Sense
• Polar H10
• Polar H9
• Other
• Device is not relevant for this question

Description:
I want to use the HR data broadcast by a Polar H10. I am able to retrieve the advertisement data and the Manufacturer data of 4 bytes. It seems that the last two bytes are HR values (u8) ? But what about the first two bytes ? At first I thought it would be some RR signal but after converting to u16 it doesn’t make sens. Any tips ? Am I correct for the last two ?

[vimmers2020]

Hi, Did you figure it out? I have the same question and can't find the answer anywhere. And yes, I think you're right about the 2 bytes with HR data.

[jcaude]

Still not found any documentation about it. But, yes it's R-R data in little endian format (2x u8 -> u16).

[vimmers2020]

Super, thanks!

[jcelerier]

Some other Polar devices such as H10 provide heart rate variance (HRV), maybe the first two bytes are this ? As described in this SO question: https://stackoverflow.com/a/52935617/1495627

[vimmers2020]

Hi, Thank you! Once I proceed with this hobby project (when the darker evenings come along again) I’ll dive in it and will use this info for sure. Best, Luc Op vr 30 aug 2024 om 03:54 schreef Jean-Michaël Celerier < ***@***.***>

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Some other Polar devices such as H10 provide heart rate variance (HRV), maybe the first two bytes are this ? As described in this SO question: https://stackoverflow.com/a/52935617/1495627 — Reply to this email directly, view it on GitHub <#427 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AO7MHCXKMIHDM56RU6DXFH3ZT7GHFAVCNFSM6AAAAABAXVRJIKVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDGMJZGY3DMOBXGE> . You are receiving this because you commented.Message ID: ***@***.***>