The one thing that I just cant get over however... is the Operating System... ok, look I totally take my hat off here to the Raspbian OS guys.. but... im sorry... its really NOT a tablet OS. I'm thinking along the lines of iOS and Android.
So, since iOS is out of the question, I have looked into Android, and from about a days worth of googling and fiddling around, this seems to be the way things are:
RTAndroid - this seemed popular at first, with a lost of mentions from about 2017, and it seems like you could have gotten Android seven point something installed on a RP2/3/3+. It seems however that RTAndroid was abandoned - someone mentioned they are now Emteria.OS.
Emteria.OS - At first this seemed like the leading solution, but when I actually tried to boot the first time, it failed (just sat on the linux looking boot loader). Also they seem commercial, and for this project... hmmm I would like to see if I can go free /open source. (After all... isn't Android supposed to be open source - am I missing something here).
LineageOS - So this looked promising, but it didn't actually have an official Raspberry Pi release, so it seems the guys at KonstaKANG.com made one - and unofficial one!
KonstaKANG.com - Now there are a good few videos on this one, AND they seem to support Android 9! Wow... very cool, ok, but I also looked at their web site, and there hasn't been any update since about 2017 also... so im not sure how current this is all going to be, and if they will put out a Raspberry Pi 4 version (i understand this to be quite the update).
Right, so with all this, I go and get my KonstaKANG / LineageOS disk ready, boot up, and .... NOTHING! blank LCD screen. So the problem there is they made it to only use the HDMI... I have no idea why?!?!? I tried to fiddle around a lot in the config.txt and the files in /boot/ but nothing seemed to have any effect.
Ok, then I looked around some more, thinking out the box... I looked at Ubuntu - thinking that maybe their OS is more Tablet/Touch friendly... sadly not. Ubuntu Mate seems to look nice and all, but we are still dealing with "window" based system and there is no way to log into the wifi at first boot without a keyboard plugged in.
Taking all this into account.... Im turning to the greater community to see if anyone out there is interested in helping be solve this problem?
My objectives are:
- Must be touch screen FIRST (can support mouse and keyboard)
- Must be able to work out the box - no building, no config, no nothing... flash and go
- Must be Raspberry Pi LCD primary with: touch, rotate, brightness, etc... then (if possible) also support HDMI
- Must tap into an already existing app store, like Play Store. (If not play store, then must support external developed apps like what you get on Ubuntu)
- All the peripherals must work - like: Wifi, Bluetooth, Audio, GPIO (like for adding mods like 3G/LTE), USB, Ethernet (if necessary)
- ~~ If you have any more please let me know ~~
I have time, and am very willing to do/learn/get it done! Anyone want to work with me on this?