Hardware projects tagged retrocomputing

Open hardware projects tagged retrocomputing on BoardRepo. View schematics and PCBs in the browser and download the sources.

Projects

29 boards
zacchaeus
@pozsarzs

8-bit microcomputer built from commercially available and home-built components

schematicpcbbomAVRswitchregulatorcrystal
No license0 stars0 commentsOct 2, 2026
tkmem128-ii
@lrrosa

TKMEM-128 II — expansão de 128K/512K paginados (padrão ZX Spectrum 128) para TK90X, TK95 e ZX Spectrum 48K, redesenhada em KiCad. Derivada do projeto do Velesoft (2009) e da TKMEM-128 da Luccas Eletrônica (2012). CERN-OHL-S v2.

schematicpcbbomgerbersresistorcapacitordiodeled
CERN-OHL-S-2.00 stars0 commentsOct 1, 2026
retrosc-pong
@lrrosa

Pong para Raspberry Pi Pico (RP2040) com saida composta NTSC, audio PWM, controles por potenciometros e attract screen. Feito para a maquina arcade do evento RetroSC.

schematicpcbbomgerbersRP2040switchpotentiometerresistor
AGPL-3.01 star0 commentsOct 1, 2026
Z280-S100
@cm68

16-bit Zilog Z280 CPU card for the IEEE-696 S-100 backplane; glue logic in two ATF1508AS CPLDs

schematicpcbbomgerberscrystalresistorcapacitorconnector
CERN-OHL-S-2.01 star0 commentsOct 1, 2026
cga2vga
@poisk-1

ПОИСК-1 CGA-to-VGA converter

schematicpcbbomregulatorresistorcapacitordiode
MIT3 stars0 commentsSep 30, 2026
ROsiM
@hkzlab

ROsiM is a ROM simulator/emulator, supporting up to 512k/16bit ROMs

schematicpcbbomAVRUSBswitchcrystal
AGPL-3.011 stars0 commentsSep 30, 2026
386DX_QFP_PGA_Adapter
@hkzlab

A QFP -> PGA adapter for 386DX CPUs

schematicpcbbomcapacitor
CC-BY-SA-4.017 stars0 commentsSep 30, 2026
RP2040_Mouse_KiCAD
@black-fx

This is the hardware side of an RP2040 USB to Quadrature mouse adaptor used with retro computers, the software is available at https://github.com/Black-FX/RP2040_Mouse

schematicpcbbomRP2040USBswitchregulator
BSD-3-Clause8 stars0 commentsSep 30, 2026
tashtwenty
@lampmerchant

An interface for the DCD protocol used by Apple's Hard Disk 20.

pcbbom
AGPL-3.034 stars0 commentsSep 30, 2026
C64-RF-Modulator
@pmandes

Commodore C64C RF modulator replacement with S-Video and stereo audio output.

schematicpcbbomgerbersresistorcapacitorinductorconnector
MIT9 stars0 commentsSep 30, 2026
kim1-power-board
@wfd3

Power and breakout board for the KIM-1

schematicpcbbomgerbersswitchresistordiodeled
MIT0 stars0 commentsSep 30, 2026
mackerel-68k
@crmaykish

A series of single-board Motorola 68k computers with support for modern Linux

schematicpcbbomswitchregulatorcrystalresistor
MIT87 stars0 commentsSep 24, 2026
z80computer-release
@armcoderbr

A Z80-based computer for nostalgic enthusiasts. With video output!

schematicpcbbomUSBswitchcrystalpotentiometer
GPL-2.05 stars0 commentsSep 23, 2026
floppy_disk_shield_2d
@yas-sim

This is a project to retain 2D/2DD floppy disk data as a raw bit-stream data. The project includes both HW and SW.

schematicpcbbomAVRcrystalresistorcapacitor
Apache-2.049 stars0 commentsSep 23, 2026
tashrecorder
@lampmerchant

Clone of the Farallon MacRecorder and Apple MIDI Interface.

schematicpcbbomPICswitchpotentiometerresistor
GPL-3.08 stars0 commentsSep 23, 2026
oldworld
@demik

Development ressources for Old World Macintosh (68k and NuBus PPC) and a few related things…

schematicpcbbomPICUSBswitchcrystal
CERN-OHL-P-2.026 stars0 commentsSep 23, 2026
retrolighting-app
@nicolaeandreivasile

Embedded lighting application to be used in various scenarios

schematicpcbbomresistorcapacitordiodeled
No license1 star2 commentsSep 22, 2026
digits
@justinlindh

Encrypted retro phone network — private VoIP over vintage desk phones

schematicpcbbomRP2040switchregulatorcrystal
AGPL-3.04 stars0 commentsSep 17, 2026
picowifimodem
@mecparts

A Pico W based RS232 <-> WiFi modem with Hayes AT style commands and LED indicators

pcbbomRP2040resistorcapacitordiode
GPL-3.059 stars0 commentsSep 5, 2026
rc1802-cosmac-elf
@tebl

With the RC6502-project for making an Apple 1 replica done I wanted to do something different, so I started designing a simple version of the RCA 1802-based Cosmac ELF instead.

pcbbom
GPL-3.030 stars0 commentsSep 5, 2026
teensyboardz80
@mecparts

A Teensy 4.0 emulated Z80 ZCPR3.3/ZSDOS computer.

pcbbom
MIT13 stars0 commentsSep 5, 2026
retroz
@formix

An S80 Single Board Retro Computer

pcbbom
Apache-2.021 stars0 commentsSep 5, 2026
isa_quaduart
@hkzlab

ISA 8-bit Quad serial adapter

pcbbom
CC-BY-SA-4.05 stars0 commentsSep 5, 2026
lm80c
@leomil72

A Z80-based homebrew computer withTMS9918, AY-3-8910, Z80 CTC, Z80 PIO, and Z80 SIO

pcbbom
GPL-3.0118 stars0 commentsSep 5, 2026
retro-uart
@rkujawa

Retro-fitting 16C750E into DIP socket! For all your retro hardware project needs.

schematicpcbbomcrystalresistorcapacitorconnector
GPL-3.00 stars0 commentsJul 9, 2026
vt100-atx-adapter
@lysol

Another VT100 ATX power supply adapter, with an integrated -23V supply for the NVRAM

schematicpcbbomswitchregulatorresistorcapacitor
GPL-3.01 star0 commentsJul 9, 2026
tinydiskii
@glgprograms

Homemade floppy disk emulator for Apple II series computers

schematicpcbbomAVRUSBswitchregulator
GPL-3.011 stars0 commentsJul 9, 2026
retrowifimodem
@mecparts

An ESP8266 based RS232 <-> WiFi modem with Hayes AT style commands and LED indicators

schematicpcbbomESP8266buzzerresistorcapacitor
GPL-3.0250 stars0 commentsJul 9, 2026
memotron
@inmbolmie

Retro-inspired DIY 256KB memory expansion for the Amstrad CPC 464 computers

schematicpcbbomresistorcapacitordiodeconnector
GPL-3.04 stars0 commentsJul 9, 2026

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