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West manifest usage and ZSWatch rev 3 support #79

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merged 11 commits into from
Oct 1, 2023
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@jakkra jakkra commented Sep 19, 2023

Partly implements #35
Adds ZSWatch rev 3.

TODOs:

  • Fix CI build with latest Zephyr main - done
  • Remove HW from this repo into new ones. -done
  • zsw_periodic_chan_rm_obs needs fix - done
  • Something else?

There are 2 main reasons I have put pretty much no effort into the MAX30101:
Getting good heart rate readings require ALOT of clever algorithms, there are some online, but tbh I have not found any that would work as good as you would expect. Good HR algorithms require fusion with accelerometer data etc. to be accurate when moving, as light may slip in below the watch and make the data "bad", hence accelerometer data needs to be fused toghether. So a lot of work would be needed, work I don't find fun :p
Mechanically it turned out to be a real challenge with the watch case. I have the sensor on the bottom of the PCB, and the sensor needs to sit directly touching the skin => bottom of watch needs to be super thin, while also having a connector for the dock => impossible (at least I could not make it work). Hence I actually only mounted the MAX30101 on one watch I built and not on the others as I could not get it mechanically to work.
I'm thinking for the next PCB version I do to drop the MAX30101 as it's just to challenging. It pretty much needs to sit on a separate PCB to make it mechanically work. Since it requires algorithms and makes casing hard, I'd much rather put something more useful in that space on the PCB.
@jakkra jakkra self-assigned this Sep 19, 2023
@jakkra jakkra added the enhancement New feature or request label Sep 19, 2023
@jakkra jakkra force-pushed the west_manifest_usage branch 3 times, most recently from 5bfc8ef to bf1007b Compare September 23, 2023 10:07
@jakkra jakkra force-pushed the west_manifest_usage branch from bf1007b to 2726f11 Compare September 23, 2023 10:14
@jakkra jakkra force-pushed the main branch 2 times, most recently from 2eb5990 to 14e2862 Compare September 30, 2023 23:26
@jakkra jakkra merged commit 2c26ca0 into main Oct 1, 2023
@jakkra jakkra deleted the west_manifest_usage branch October 11, 2023 13:31
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