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I do not understand page numbers sent

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Total Posts: 3

Joined 2019-01-01

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I am writing an app to talk to my Wahoo KIckr but I do not understand the data that I am receiving. If I switch on the trainer - no pedalling - I receive the following:
(4E): 19 03 FF 00 00 00 40 20
(4E): 11 00 00 FF 00 00 00 00
(4E): 1A 00 00 1B 04 00 00 20
(4E): E0 FF FF FF FF FF FF 00
(4E): 19 06 FF 00 00 00 40 20
(4E): 11 00 00 FF 00 00 00 00
(4E): 10 19 00 00 00 00 FF 24
(4E): 11 00 00 FF 00 00 00 00
(4E): 1A 00 00 1B 04 00 00 20
(4E): 11 00 00 FF 00 00 00 00
(4E): E0 FF FF FF FF FF FF 00
(4E): 19 0A FF 00 00 00 40 20
(4E): 10 00 FF 00 00 00 00 00
(4E): 10 19 00 00 00 00 FF 24
(4E): 11 00 00 FF 00 00 00 00
(4E): 1A 00 00 1B 04 00 00 20
(4E): 11 00 00 FF 00 00 00 00
(4E): E0 FF FF FF FF FF FF 00
(4E): 11 00 00 FF 00 00 00 00
(4E): 1A 00 00 1B 04 00 00 20
(4E): 10 19 00 00 00 00 FF 24
(4E): 11 00 00 FF 00 00 00 00
(4E): E0 FF FF FF FF FF FF 00

4E refers to the Bike Power profile. The first byte is the page number. I recognise 10 as the basic power data. I think 11 refers to Wheel Torque info. I do not now how to decode page numbers 19, 1A and E0. Any help gratefully received.      
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Total Posts: 3

Joined 2019-09-11

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I dont know if my reply will be of help, but 0x1A (hex) is equal to 26 in decimal. And from ANT+ Fitness Equipment Profile PDF you can read, that Page 26 (0x1A) – Specific Trainer Torque Data. smile but I am not sure if this is the answer you have been looking for...      
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Total Posts: 13

Joined 2019-09-26

PM

I have the same trainer and was just looking at this data yesterday. i don't have the document handy but as Tomik pointed out the page (0x1A) represents torque data. notice that the data is not changing. makes sense since in your post you said you are not peddling.

-scott      
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Total Posts: 370

Joined 2012-06-27

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4E refers to the Msg ID for Broadcast Data. See 9.3 of the ANT Message Protocol and Usage document.

You can download the profile document at https://www.thisisant.com/developer/resources/downloads/#documents_tab "ANT+ Device Profile - Fitness Equipment. This outlines the meaning of all the page numbers, and how to decode the remainder of the data.

Ian

     

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Ian Haigh