I want to use my PI for a ventilation system front end. I want it to boot up into my own simple GUI written in something like TKinter. We have occasional power cuts in the village so it must be able to re-boot and start up on its own.
I have played around with Debian but I can only make the program run within the Debian UI. If I include it in rc.local to start at boot without the GUI running it says it cannot find $display.
A simple PI GUI where I can automatically start my program once the GUI has loaded and I can occupy the whole screen (well most of it) would work.
Any suggestions please?