This is the source code for Doug Jacksons wordclock (see http://www.dougswordclock.com/ and http://www.instructables.com/id/The-Word-Clock-Arduino-version/). The word clock is software compatible with an Arduino Duemilanove (see http://arduino.cc/en/Main/arduinoBoardDuemilanove), but with an ATmega328 instead of an ATmega168. To compile this source under Linux with the Arduino command line tools, create the following symlink in the directory where you found this file: ln -s /usr/share/arduino/hardware/ hardware Next, enter the wordclock directory. Copy 'settings_example.h' to 'settings.h' and modify it for your hardware and preferences. Use 'make' to build the source and 'make upload' to upload the source to the clock. Have fun :)