- Cleanups: - Collect globals into a more coherent centralized namespace - Cleanup debug handling using that centralized state info - Cleanup timer run code into separate thread that gets started/stopped instead of always running with 0 displayed - Autodetect temp probe device - Generate compensation tables at startup based on low/hi range - perhaps limited by times <400ms - Speed up boot time by removing all unneeded boot activity - Package into a preconfigured DD image for release simplicity - Longer term: Move to an SPI based set of displays for better rendering speed.