Challenges

Featured Challenge:
#188 — Voice Chatbot

In this coding challenge, I build a conversational voice chatbot entirely in the browser with p5.js. I combine three pieces: speech-to-text with OpenAI's Whisper model, text-to-speech with Kokoro TTS, and a "brain" for the bot. I also explore the transformers.js pipeline API and the Web Audio API. For the bot's brain, I start with a simple ELIZA-style therapist, then incorporate a RiveScript number-guessing game, and finally a local LLM.

apr 27, 2026

Voice Chatbot

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Pi

Happy Pi Day 2024! In this video, I attempt to create an Apollonian Gasket using the Descartes Circle Theorem and complex numbers. So many circles!

Apollonian Gasket

How do toothpicks approximate the value of pi? I'll show you by coding a simulation in p5.js!

Buffon's Needle

Happy Pi Day! How many delicious digits of Pi can you catch from the sky? In JavaScript!

Pi in the Sky Game

In this coding challenge, I use the Leibniz formula (aka infinite series) to approximate the digits of Pi and graph the convergence.

Leibniz Formula for Pi

In yet another “Pi Day” coding challenge, I attempt to generate a pdf “Book of Pi” with the first 10 million digits of Pi mapped to color. Processing (Java) is used for this project.

The Book of Pi