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espruino / BangleApps

Bangle.js App Loader (and Apps)
https://banglejs.com/apps
MIT License
498 stars 1.17k forks source link

openhaystack: store battery status in FindMy packet #3566

Open bobrippling opened 2 months ago

bobrippling commented 2 months ago

This allows a user to know their device's battery, as well as its location

See also: https://github.com/seemoo-lab/openhaystack/issues/185 https://github.com/MatthewKuKanich/FindMyFlipper/blob/e5a678e33dd17af46bb63050be4c9d10e17f6252/FindMyFlipper/findmy_state.c#L126-L137

@olivierbarriere let me know what you think - I'll be testing this over the next week or so

gfwilliams commented 2 months ago

This looks cool. I'd be fine with merging it anyway.

Interestingly it's nice to have a way to send some data back. For instance if you had a remote letterbox or something it could report battery level as full if there was something in it, or nearly empty if there wasn't.

bobrippling commented 2 months ago

Yes that would be very cool to repurpose the 4 values as another form of communication - or it'd be interesting to see if "invalid" battery values made it through the network too.

I've had this running but my watch hasn't appeared on the network in a while, so can't confirm yet