⚙️ RISC-V softcore SoC with UART, timer, GPIO and SDCard support — ready for real-time apps on low-cost FPGAs.

Commodore 1541 emulator for the Raspberry Pi

Let your Raspberry Pi Pico pretend to be a Commodore 64 ROM cartridge

Buildroot fork customized for RPI3, iMX6, TK1, Qt, FastBoot.

Affordable, Multifunctional, Nano RISC-V IP-KVM

Commodore C64 core for the Tang Nano 20K Primer 25K Mega 60k Mega 138K Pro Console60k/138k FPGA

CH32V305 DAPLink - USB2.0 High Speed DAPLink firmware for the WCH-LinkE

HDMI CEC with minimal hardware running on ATTINY25

Program, library and reference designs to develop for MacroSilicon MS2106/MS2109/MS2130 chips.

Diary of the bluetooth thermal printer reverse engineering

Optimizing Small memory C Compiler Assembler and Runtime for C64

This project aims to enhance the working environment on Windows

Python and C Bluetooth Library

A tiny shell for Pico and Pico2, with file system, Vi and C compiler

Raspberry Pi + High Quality Camera = High-quality USB Webcam!

An Arduino-like programming API for the CH55X

a cheap CMSIS-DAP debugger by an WCH chip named CH549F

Multi-platform nightly builds of open source FPGA tools

A tiny JavaScript runtime for RP2040 (Raspberry Pi Pico)

Ultra-lightweight JavaScript engine for the Internet of Things.

ARM Run-Time ABI for the Cortex-M0 processor

Packetcraft Open Source products: Controller, Host, Profile and Mesh

CMSIS-DAP using TinyUSB

stuff for Desay/MPOW DS-D6 nRF52832 bracelet

ART-Badge SDK 源码

Centronic USB Stick to control Becker Shutter CC31/CC51

CODAL target for the micro:bit v2.x series of devices

STM32F103 logic analyzer and more

USB to 3 Port Serial (UART) adapter firmware for STM32 Blue Pill.