8-Pin Linux: A Surprisingly Powerful Single-Board Computer
2025-04-04

This article details the creation of a remarkably compact Linux computer built using only three 8-pin chips. The author cleverly overcomes the limitations of the minimal pin count by creatively sharing pins between the SPI RAM and SD card, and implementing USB-to-serial communication and SD card access in software. The resulting miniature computer successfully runs Debian Linux, supporting tools like vi and gcc, showcasing ingenious design and surprising capabilities.
Hardware
minimal hardware