When you press the Start flag, you will be prompted for the name of the white player, then the name for the black player. To get the clock going for white, click on the White circle, A or the left arrow. Similarly to get the clock going for Black, clci on the Black circle, L or the left arrow. The clock master is to be able to pause the time.Use the Space bar for a timeout for both sides.
The base project was done by a student of mine. He asked fme for feedback to improve his chess clock project. Please realize this is a work in progress.