So, just to inform you, my native language isn't English so sorry for some misspelled words.
In this turtorial I will show you what can you do with old android device which you don't use anymore.
You could probably sell it, but where's the fun in that?
I'm using older Alcatel T10 tablet( single core 1.0ghz cpu, 1 gb of ram, 7" tft display), but almost any android powered device with a screen would work.
I've got it when it wasn't working( problem with charging) for 100kunas( around 18$), fixed it and started using it.
But after around 25 seconds I realized it wasn't really usable because it isn't quite stable(apps closing etc.)
So I was wondering what to do with it and ended up making it very good Clock/Media player/Online radio/Email notifier/Weather station/Photo frame, and it all works simultaneously.