…0049C board. This allows those who do not have an oscilloscope to verify the user interface loop is running.

…pper microsteps, stepper resolution, and encoder resolution. When displaying brightness, + and - buttons cycle brightness through five levels. Add lower case letters to seven-segment patterns.

…pper microsteps, stepper resolution, encoder resolution, and back to normal operation. Any display will timeout in a couple seconds if the cycle isn't completed. When displaying brightness, + and - buttons cycle brightness through five levels. Add lower case letters to seven-segment patterns.