Lexicographically sortable Canonically encoded as a 26 character string, as opposed to the 36 character UUID Uses Crockford's base32 for better efficiency and readability (5 bits per character) ...
The E-Paper display base class is a subclass of Adafruit_GFX, to have graphics and text rendering. It needs up to 15kB available RAM to buffer the black/white image for the SPI displays, double for ...