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

Printable files

File links are being added. Check the original source above in the meantime.

Jump to the parts list ↓ · License tags say whether you may sell prints (NC = non-commercial).

Parts

QtyPartPriceBuy
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
6×M2 × 6mm machine screws
Use 8 if securing the keyboard to the bottom tray.
—Search DigiKey
6×M2 × 6mm heat-set threaded inserts
Use 8 if adding inserts at the keyboard tray front corners.
—Search DigiKey
1×Raspberry Pi Zero 2 W
The repository BOM names the Zero 2 W.
—PiShop.us Search PiShop.us Search Amazon
1×3.7V 606090 LiPo battery
Creator specifies 606090 or similar size, without capacity or connector details.
—Search Amazon
1×Adafruit PowerBoost 1000C
Exact Adafruit PowerBoost 1000C linked in the BOM.
—Adafruit Search Amazon
1×Miniature SPDT slide switch
Required by the wiring diagram; creator does not specify an exact model.
—Search 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.
—Search Pimoroni
48×1N4148 through-hole switching diode
The BOM specifies one 1N4148 diode per key.
—Mechboards Search DigiKey
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.
—Order at JLCPCB
Parts cost estimate coming soon: prices are being checked at reputable sellers.

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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