Video of clock in action: https://photos.google.com/share/AF1QipM3veQpQ0XkVU6mXYjfI77cDL8gVcDZlROT0_qATZYPRnyIRZsuLHRsqtRsNTrixQ?key=c0U2SFBVdGpubVNTWW43WENBeFczdWVBSk5FbmZB
Works with 6 modules controlled over an I2C bus. Module code can be found at https://github.com/alang321/clockclock-module