A digital logic designer and circuit simulator.

An Open-Source HardWare (OSHW) recreation of the original 1985 front-loading NES Motherboard

Arduino library for TinyUSB

Very slightly modified version of Alessandro Zummo's GALasm 2.1, for programming GAL devices

A 65C02-based homebrew computer

Arduino hardware package for ATmega1284, ATmega644, ATmega324, ATmega324PB, ATmega164, ATmega32, ATmega16 and ATmega8535

Ken's Rather Useless Symbolic Assembly Development Environment for the Replica 1

Simple stand-alone debugger for AVR DebugWIRE chips connected directly to an FT232R/CH340/DigiSpark/LittleWire on Linux or Windows.

RF transmitter for Raspberry Pi

Driver for SX126x radio

FSK/GFSK Decoder for RTL-SDR

general-purpose software audio FSK modem

Official RC2014 repository for hardware schematics / software and more!

low cost software radio platform

Portable C implementation of Ed25519, a high-speed high-security public-key signature system.

VGA library for Arduino UNO

24MHz sampling rate Logic Analyzer based on fx2lafw

A complete build of a mobile 6502 home computer system

The Advanced Media Framework (AMF) SDK provides developers with optimal access to AMD devices for multimedia processing

GTK+ IRC client

FM-RDS transmitter using the Raspberry Pi's PWM

This repo contains driver samples prepared for use with Microsoft Visual Studio and the Windows Driver Kit (WDK). It contains both Universal Windows Driver and desktop-only driver samples.

The original sources of MS-DOS 1.25, 2.0, and 4.0 for reference purposes

The original source code of Microsoft GW-BASIC from 1983

A collection of programs that can encode JPEG images WAV files using various popular SSTV encodings.

Portable OpenSSH, all Win32-OpenSSH releases and wiki are managed at https://github.com/powershell/Win32-OpenSSH

The new Windows Terminal and the original Windows console host, all in the same place!

IBM AT 80286 BIOS

VGA and BIOS rom font extraction