DCF77 radio clock receiver for Ice Tube and Monochron… PurpleTentacle writes –
Hi all, I’ve now connected a DCF77 receiver to pin PC1 of my monochron and it works fine! I made a fork of the MultiChron project on github to add the DCF support to the firmware. The sources can be found under (git hub). The hardware modifications are described in a howto document (PDF).