A Simple ESP32 Bluetooth A2DP Library (to implement a Music Receiver or Sender) that supports Arduino, PlatformIO and Espressif IDF

ATS Mini firmware fork

DEC VT240 Emulator

High performance UI layout library in C.

Inkscape Extensions For Creating and Using Stroke Fonts

Realtime cycle exact emulation of the C64 using multiple microcontrollers in parallel.

Encryption and funny APIs for meshtastic serial devices

Tools for pen plotting in Python

Raspberry-Pi Pico based USB DAC with 2ch parametric equalizer

Tweaks or add-ons for the PiDP-10

A pack of retro shaders to Godot!

CPU КР580ВМ80А

24 channel, 100Msps logic analyzer hardware and software

Handheld RISC-V Mini Game Console with OLED Display

Open source minimal stack for the ch32 line of WCH processors, including the ch32v003, a 10¢ 48 MHz RISC-V Microcontroller - as well as many other chips within the ch32v/x line.

AY-3-8910 made out of discrete 74-series logic ICs

ROM cartridge for Vector-06C home computer

HDMI Audio/Video signal generation for HW emulators of retro comuters

Trying to get the Raspberry Pi RP2040 chip's PIO to generate a colour PAL composite video signal, using only a resistor ladder digital-to-analogue converter (DAC).

BootROM for PC Vector-06c (Вектор-06ц)

MSX-Network

Dexed FM synthesizer similar to 8x DX7 (TX816/TX802) running on a bare metal Raspberry Pi (without a Linux kernel or operating system)

Plyuk ApogeyBK01C

Docker base SDK for Raspberry Pi Pico