Collection of ROMs on my RetroPi install.

Copy Fail (CVE-2026-31431): 9-year-old Linux kernel LPE found by Theori's Xint Code

A minimal BASIC interpreter for Arduino UNO (ATmega328P).

Small Device C Compiler

An RP2040-based ROM emulator

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

Microsoft BASIC for 6502 Microprocessor - Version 1.1

The missing PROGMEM_FAR macro for Arduino

All Algorithms implemented in Python

A handheld Arduino-based version of Conway's Game of Life with an OLED display, custom controls, and battery-powered design.

useful Python pandas code

Python-based tool for downloading all your GOG.com game and bonus collections to your local computer for full offline enjoyment.

YubiKey Personalization GUI

Micro-Soft Altair BASIC 3.2 source

Python 101 Community Edition is the free open source version of my book, Python 101.

Library for modular scrolling LED matrix text displays

RunCPM for the Raspberry Pico

PCF8574 8-Bit I/O Expander

LiquidCrystal Arduino library for the DFRobot I2C LCD displays

A version of the keypad library found in Wiring. This is just a copy made compatible with the Arduino IDE library manager.

Useful functions, tutorials, and other Python-related things

Game engine for the classic text-based Adventure games in Python and JSON

Pico emulation for ROMWBW running CPM

pigpio is a C library for the Raspberry which allows control of the General Purpose Input Outputs (GPIO).

A sample weather monitoring program which records the output to a CSV file

C code to receive NEC codes from a GPIO connected to a IR demodulator

A C library (Linux + Arduino) to control 2 line x 16 character I2C LCD displays

A fast substitute for Arduino digital pin functions on AVR MCUs

A software I2C implementation to create multiple I2C buses using GPIO lines

Scan I2C buses and identify devices which respond.