Motorola Chip 6821 HDL

16u2 Bootloader to reprogram 16u2 + 328/2560 with Arduino IDE

Retro emulation for the ODROID-GO and other ESP32 devices

A Simple Program which enables communication between a Serial Device (like an Arduino) and the Flight Simulator 2020

Floppy disk images for ZX Spectrum

RunCPM is a multi-platform, portable, Z80 CP/M 2.2 emulator.

Sarien for the Sinclair QL

Sinclair QL Z80 emulator, used for CP/M 2.2

A collection of scripts and tools for Atmel ATF150x and GAL Programmable logic devices, some of the only standing active 5V programmable logic parts still available.

Emulation of the SPO256-al2 chip on RP2040

program to modify the ROM of my cheap game console

This is the software component of my RP2040 based USB to Quadrature mouse adaptor

AY-8912 chip emulation library

ST Sound library, modified for accurate AY-3-8912 emulation.

Misc projects for ARM family

nRF24-based RC car receiver, compatible with HobbyKing HK310 and Turnigy 3XS

Hack the channels on the HobbyKing HK310 and Turnigy X3S RC transmitter

TAP/TZX Digital cassette recorder for 8-bit machines

Floppy Disk Interface for ZX Spectrum +2A/B

Convert any LCSC components (including EasyEDA) to KiCad library

Recreation of the ZX Spectrum Issue 4B board in KiCAD

Vintage General Instrument Speech Synthesizer CTS256 with SP0256

ESP8266/ESP32/Arduino custom modem<->internet simulator with lots of features

A ZX spectrum 48K, 128K and Pentagon 128 emulator running on the Espressif ESP32 SoC

Keyboard for ZX Spectrum based on 48p-KDLX scheme, but used Cherry MX and atypical formfactor

DivTIESUS is a SD/MMC interface for the ZX Spectrum, compatible with ESXDOS. It is not a clone of Mario Pratto's DivMMC.

Video-to-VGA converter for Sinclair QL

[Unofficial] Tiny Linux distribution for TomTom™ devices

zx spectrum 128 emulator on single esp32