Hello,
I am sitting here on a little project for an ODROID C4 : a kiosk style computer but with absolutely no internet.
My requirements to the OS :
- tiny, fast OS with no need of Internet or any network at all and absolutely no need of updates. Must boot very fast and be tiny.
- Needs easily to fit on a 8GB eemc memory.
- will auto-run a GUI interface with one single application/single user on a touchscreen (Waveshare, 1024x600 resolution) 99.9% of all the time.
- needs three high speed serial lines on the 40 pin header , uart0, uart1, uart2
- additionally, absolutely needs the real time clock PCF8563 on any i2c
I started on the Odroid C4 with the supported “ubuntu 20 minimal image” but this was a mistake, it grew huge just by adding the GUI.
And it did not include the PCF8563 kernel module ; I tried to compile it but it somehow failed.
Now I have to restart all over and do the same work again.
The GUI I’d like to autostart would be “openbox”, but if you have a similar tiny GUI that won’t mess up with the touchscreen or the full-screen application, I have no objection. Basically all I need are the 3 UART’s on the 40 pin header and one i2c for the realtime clock. Additionally some user defined lines for the power switch - one input line that waits for the power switch, another output line that goes high when the input line was activated.
Does DietPi support all the hardware I need (Touch screen, 3 uarts, hardware clock) ? Can it autostart one single GUI program?
Please help me a little bit how to get the proper kernel modules for UART and hardware clock. Thanks!
