Making any recent second-hand smartphone a SBC-equivilent field computer is always a custom job/not scalable.
OF course, that shouldn't matter for most tinkerer jobs like a CarPi. But anecdotally, I tried using my old iphone 13 (idk why I tried this) and then a couple old galaxies for my car project taking data from bluetooth dongle and relaying to a custom gui I made. Of course also dealing with power cycles and screen, data trasnfer etc.
Very, very quickly it became easier to justify buying a SBC for the same project
The goal of the Raspberry Pi was to have a SoC that could run Linux on a very cheap board, but that's no longer the case. There are cheaper options on the market today... and if you really need to use Linux... an old smartphone can be a testing solution. I also recently used a Xiaomi router (it has little internal memory) to run Linux (OpenWrt) and do some testing
Yes but also find a phone that is not top of the line and can be flashed with a custom ROM/kernel like linage OS, or Ubuntu touch, postmakret OS, then you can customize and have your pie and eat it too. Since you won't be needing the phone to have security for you banking stuff
OF course, that shouldn't matter for most tinkerer jobs like a CarPi. But anecdotally, I tried using my old iphone 13 (idk why I tried this) and then a couple old galaxies for my car project taking data from bluetooth dongle and relaying to a custom gui I made. Of course also dealing with power cycles and screen, data trasnfer etc.
Very, very quickly it became easier to justify buying a SBC for the same project