I’ve been working hard on Xronos Clock 3.0 for almost a year and while I’m not ready to release hardware just yet, I rewrote huge chunks of code making big improvements in how Xronos Clock works. Biggest one was automatic DST adjustment and support for all US (and soon world) time zones.

However at some point I realized that new code can be made compatible with Xronos 2.1!

So I made yet another rewrite and finally was able to make firmware that with few adjustments can be loaded onto Xronos Clock V2.1 as well as upcoming V3!

Here are main improvements of new program:

  • Supports both DS3231 and DS1307 RTCs chips
  • DST and all US Timezones are now supported