By default, the debugging is mostly suppressed (although you can change that). You have to issue a serial port command to turn on higher level logging and debug functions.

An Arduino is a popular open-source single-board microcontroller. Learn how to program one and let the possibilities take shape.

Unfortunately documentation on this feature is hard to come by, but with some work [Wayne] has managed to figure out how most of it works and create an Arduino Sketch that lets the user interact ...