The berlin clock is a clock which tells the time using a series of illuminated coloured lights. More details can be found here: https://en.wikipedia.org/wiki/Mengenlehreuhr
You can run the Berlin clock using sbt:
sbt "run-main org.rntech.runner.Main"
The number of iterations and sleep between clocks can be overriden by passing parameters respectively:
sbt "run-main org.rntech.runner.Main 10 2000"
Running the tests:
sbt clean test