I had some food fineer from another project, and wanted a clock for in my bedroom that automatically adjusts the intensity based on the ambient light intensity.
I’ve designed the PCB so that 4 of them interlock, with 3d printed 7 segment dividers and wood fineer glued to that. The entire thing is driven from an ESP8266 to connect to a network clock with backup internal time-keeping. The pictures below are before the light intensity was fixed.



