Today I learned that the little DC adapter I was trying to use to power a ODROID C1 was insufficient, at least when it came to spinning up a GUI.

I have this old Lenovo power adapter that is pushing 20V, so I’m looking into stepping down that voltage somehow to 5V. I tried to use a potentiometer to achieve this purpose, which likely belies my electronics knowledge - in short, it didn’t work. Some reading is required.