Penkesu Computer

by Penk Chen · Hard · manifest draft — being verified

A clamshell handheld built around a Raspberry Pi Zero 2 W, a wide 7.9-inch touchscreen and a 48-key low-profile ortholinear keyboard.

Penk Chen designed Penkesu as a compact, retro-style homebrew computer with deliberately minimal internal electronics. The repository publishes the bill of materials, enclosure files, keyboard firmware and assembly notes needed to reproduce or remix it.

Original: github.com

Parts

Qty	Part	Buy
1×	Waveshare 7.9-inch HDMI LCD Named and linked in the repository BOM.	Waveshare
1×	Adafruit DIY HDMI right-angle adapter Exact Adafruit product linked in the repository BOM.	Adafruit
1×	Adafruit DIY mini-HDMI adapter Exact Adafruit product linked in the repository BOM.	Adafruit
1×	Adafruit DIY HDMI 20cm ribbon cable The BOM specifies the 20cm ribbon.	Adafruit
1×	Game Boy Advance SP replacement hinges One replacement hinge pair; the repository links a marketplace listing.	Amazon (budget)
6×	M2 × 6mm machine screws Use 8 if securing the keyboard to the bottom tray.	DigiKey
6×	M2 × 6mm heat-set threaded inserts Use 8 if adding inserts at the keyboard tray front corners.	DigiKey
1×	Raspberry Pi Zero 2 W The repository BOM names the Zero 2 W.	PiShop.us PiShop.us Amazon (budget)
1×	3.7V 606090 LiPo battery Creator specifies 606090 or similar size, without capacity or connector details.	Amazon (budget)
1×	Adafruit PowerBoost 1000C Exact Adafruit PowerBoost 1000C linked in the BOM.	Adafruit Amazon (budget)
1×	Miniature SPDT slide switch Required by the wiring diagram; creator does not specify an exact model.	DigiKey
48×	Kailh Choc v1 low-profile switch The BOM specifies Kailh Choc v1 switches.	Adafruit
48×	MBK Choc low-profile keycap The BOM specifies MBK Choc low-profile keycaps.	Pimoroni
48×	1N4148 through-hole switching diode The BOM specifies one 1N4148 diode per key.	DigiKey Mechboards
1×	SparkFun Pro Micro (ATmega32U4) The BOM says Arduino Pro Micro; listed product is a compatible original-design board.	SparkFun
1×	Koda 48-key keyboard PCB Fabricate from the linked Koda Gerber archive; keyboard design is CC BY-NC-SA 4.0.	JLCPCB

Printed parts

Penkesu clamshell enclosure set — Six STL files plus a STEP assembly are in the official repository; repository license is MIT.

Notes

Official repository README, BOM, file tree and license checked on 2026-10-15. Kept as draft because the battery capacity and connector, power-switch model, PCB fabrication choices and some assembly consumables are not fully specified.

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