Theme

Homebrew Hardware

Single-board computers, EEPROM programmers, cartridge readers, ISA cards, keyboards, and small embedded systems.

Story

These projects sit at the bench: PCBs, firmware, microcontrollers, buses, ROMs, and the pleasant discipline of making electrons behave.

Projects in This Theme

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pico-sst39sf0x0-programmer

Raspberry Pi Pico-based flasher utility for SST39SF0x0 EEPROM chips — flash ROMs for retro computers without specialist hardware.

eeprom-programmer raspberry-pi-pico sst39sf040
C++ 12 Homebrew Hardware
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bytecradle-6502

Homebrew 65C02-based single board computer — complete hardware schematics, memory map, and assembly firmware built from scratch.

6502 65c02 single-board-computer
Assembly 5 Homebrew Hardware
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sap-smd

Modular 8-bit SAP (Simple as Possible) computer built entirely with TTL logic chips — a Ben Eater-inspired homebrew CPU in SMD form.

homebrew-computer ttl-computer ben-eaters-cpu
Python 2 Homebrew Hardware
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cx16-kakuro

Kakuro logic puzzle game for the Commander X16 retro computer. Written in C with a clean text-mode UI.

cx16 retrogame kakuro
C 2 Homebrew Hardware
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cx16-othello

Othello (reversi) game for the Commander X16 — a faithful port of the classic strategy game with a computer opponent.

cx16 retrogame othello
C 2 Homebrew Hardware
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mmk

Mini Matrix Keyboard — a compact mechanical keyboard built around an STM32 microcontroller with custom PCB design.

mechanical-keyboard microcontroller pcb
C++ 2 Homebrew Hardware
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picobeam

Compact VGA text display generator for the Raspberry Pi Pico 2 — outputs 80×30 text at VGA resolution using PIO state machines.

raspberry-pi-pico-2 vga picovga
C 1 Homebrew Hardware
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atari-2600-composite-video-mod

Small PCB module to output clean composite video from an Atari 2600, replacing the aging RF modulator.

atari-2600 composite-video mod
1 Homebrew Hardware
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zeta-80

Single board computer designed around the Zilog Z80 processor — full hardware design with schematics and firmware.

z80 single-board-computer homebrew
Homebrew Hardware
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morseboard-8088

Single board computer built around the Intel 8088 processor — minimalist design with 8088 assembly firmware.

8088 intel-8088 single-board-computer
Assembly Homebrew Hardware
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bytecradle-6502-operating-system

Operating system for the ByteCradle 6502 Mini — provides a basic shell, memory management, and I/O drivers.

6502 65c02 operating-system
Assembly Homebrew Hardware
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slot-otter

8-bit ISA card to interface with a FAT32-formatted SD card — adds mass storage to vintage ISA-bus systems.

isa-card sdcard fat32
Assembly Homebrew Hardware
View on GitHub