I have been working on a number of Raspberry Pi projects in various stages of working. To distract from more difficult projects (not to mention nostalgia and fun) I have been building  an Adafruit PiGrrl portable classic game emulator.  At several points with this project or other without a lot of feedback from the device I’m working with, I’ve relied on milliamp readings from the Mico USB Cable/Voltage Display.  This tiny bit of information is incredibly helpful in determining what my Pi is up too. Idle? Booting? Overwhelmed?  In the land of the blind the one eye’d man is king.  At the very least it reduced the total time waisted waiting on crashed or other broken attempts.