Spoiler alert: not all characters are visible at once. The heart of the project is a MAX7219 4-in-1 LED display that costs well under $10. The board has four LED arrays resulting in a display of 8 ...

It’s something [Michael Rule] has done some work on, with his ILI9341TTY, a USB serial terminal monitor using an Arduino Uno ... Computing, an array of semigraphics characters that may be ...