What to do with old phones?

https://monero.town/post/2701072

What to do with old phones? - monero.town

I found a few old phones from my family. II cleaned them, installed LineageOS and rooted most of them. On one I installed postmarketOS, one is still stock Android and one is lets say bricked (after installing lineagesos it stay on boot logo for ever, before that I installed lineageos and nethunter on it). One one disk encryption doesnt work for some reason. Phones (all samsung galaxy): - S4 - A5 - A5 (bricked) - A5 (postmarketOS) - J3 - J4+ (no encryption) - A31 (stock) What can I do with them? Something like Monero node or Tor relay, but I’m already running that on old pc. For something that needs speed I have rpis (like a website). Camera security system? Tracking device? Is it possible to run (and autorun) cli apps and/or services that can access interent, bluetooth, gps, sensors, camera, files, etc. just like on linux? I’m a programmer and I don’t like making normal android apps for a simple project.

The cameras are usually nice enough for using as a dash cam if you drive. I use one of mine for a media device around the house, kitchen aid etc. I also use an old one for keeping my current one free of boatware, extra apps, and ensuring privacy on my carry phone (by not having anything google or tacking/data harvesting if I can help it).

Outside of that you could look into using them as potential network devices, DNS ad blockers, etc. I haven’t looked recently but using one as a casting device receiver for TV would be awesome over a Chromecast or the like. But not sure how those projects are going