Uploaded November 2025 | Updated September 2026, 3 weeks ago

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1988's pocket computer (SHARP PC-G801) is radically modified to run Linux using Raspberry Pi Zero 2W and ESP32-S3.

- Original housing (case) is unchanged
- It runs with 4 AA batteries (same to original)
- WiFi connection
- RPN calc on ESP32 standalone mode

For details, visit
shiura.com/dfab/sharp-mod/index.html
(in Japanese, but you can read using machine translation. All figures are in English.)

PCB design and code at
github.com/sh1ura/Radically-modified-pocket-computer