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“I am pushing the limits of how much compute you can get out of an Arduino Nano: - 320x200 pixels of monochrome VGA output (optional: 16 row colors) - PS/2 keyboard readout - requires only 1(!) logic IC 74HC166”

“The Amethyst is a retro-styled “home computer” built around an Atmel ATmega1284 microcontroller. It features composite (NTSC) video output with both high-color and high-resolution modes, mono audio output, and a full-travel mechanical keyboard. It includes a full-featured implementation of the …