Nixie Clock: Programming

I was able to get some simple code running on the Nixie Clock that displays the time and flashes the separators once every two seconds. I initially tried to write my own code for interfacing with the DS32321, but I kept running into issues. The ATMega328 datasheet (for the I2C setup and status codes), the DS3231 datasheet (for register addresses), and this website were all indispensable when writing the code. In the interest of time, I decided to just use a library. It worked perfectly, and I was able to set and retrieve the time.

I now need to add fancier animations and more modes for showing the date, temperature, and timers.