DCF77 OLED-clock second edition
After the first setup, based on the Adafruit Feather M0 Basic and a breadboard, was compact but also impractical for a case and especially with very poor reception, I decided to disassemble this setup again and - based on the chosen housings - complete to put together again. This time the SAMD21 boards TAU and Sparkfun were used.
Both variants are briefly documented here.
Again, the 2.42 "OLED has shown that it has a very bad DC / DC converter, which obstructs the DCF reception despite the screen foil, but the large 4.7" OLED makes itself perfect as a living room clock :-) !
2.4" - front
2.4" - rear
2.4" - rear open
2.4" - inner
4.7" - front
4.7" - rear
4.7" - rear open
4.7" - inner