NIXIE Tubes Clocks Z568

How to compile and upload firmware to Nixie Clock NCM
For Board NCM109 v1.0-1.1 2017-2023 years
For Board NCM107 v1.1 2016-2017 years
For Board NCM105 v1.6 2016-2017 years
For Board NCM105 v1.5 2015-2016 years