The CircuitPython Show

Latest Episodes:

The Open Pressure Sensor Device Mar 09, 2026

Show notes

Paul welcomes Michelle Hui and Reitwiec Shandilya, master’s students at Cornell Tech. They discuss their project, an open source medical device that helps mastectomy patients, that runs CircuitPython.

00:00 Intro

00:46 The Open Pressure Sensor Device

2:05 Overcoming the problem gaps

2:58 Partnering with clinicians

5:26 The hardware and firmware

8:13 Reverse engineering the proprietary device

13:48 The Open Source Hardware Association

20:09 What’s next for OpenPSD?

21:42 Wrap-up

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Sean Carolan Feb 23, 2026

Show notes

In this episode, Paul is joined by Sean Carolan. Sean shares how he used CoPilot with Claude Opus to create a Pac-Man clone in CircuitPython in just one day.

Show Notes

00:00 Intro

00:32 Sean’s start with computers

1:34 Choosing Pac-Man

2:30 Seeed Wio Terminal

4:04 Coding Pac-Man in CircuitPython

5:17 The game’s art assets

6:51 Re-creating the sounds of Pac-Man

8:29 Pac-Man on the Fruit Jam

Port to Adafruit Fruit jam by relic-se · Pull Request #1 · scarolan/pac-wio

9:51 What worked well when using Claude Opus for Ai

12:50 The challenges in using AI

14:14 Recommendations for someone just starting to use AI to code

16:38 Learn more about Sean

17:01 Which board?

18:36 Wrap-up

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John Ellis Feb 09, 2026

Show notes

Paul welcomes John Ellis to the show. John shares some of his MacroPad projects, TallyCircuitPy, and more.

00:00 Intro

1:18 John’s start with computers

5:13 John’s handle, DeckerEgo

6:28 MacroPad Hotkeys II

8:59 Sleeping the Macropad screen

10:36 MacroPad 4 Chord MIDI

Macropad 4chord MIDI

12:47 TallyCircuitPy and TallyOBS

TallyOBS

15:12 The role CircuitPython can play in saving older hardware

17:20 Where to learn more about John

https://www.deckerego.net

18:15 Which board?

19:53 Wrap-up

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Dan Cogliano Dec 08, 2025

Show notes

Dan Cogliano joins Paul and they discuss Dan’s work with the Z Machine, which allows you to play Zork and other text adventure games.

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Show Notes

00:30 Dan’s start with computers

3:05 The EZ Make Oven

4:53 The Z-Machine

7:59 Challenges in creating the CP Z Machine

9:08 The game of Zork

11:00 CP Z Machine Learn Guide

11:15 Dan’s next game

12:29 Challenges working with graphics

13:37 Where to learn more about Dan

14:27 Which board?

15:13 Wrap-up

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River Wang Nov 24, 2025

Show notes

Paul welcomes River Wang to the show. River was a STEAM teacher before becoming a full time software developer 3 years ago. He created the CircuitPython Online IDE, a browser based platform that allows users to work on a CircuitPython project on the web or as a self-hosted website.

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Show Notes

00:00 Intro

00:29 River’s start with computers and electronics

3:42 River’s start with Python

4:31 Teaching

5:42 Discovering CircuitPython

9:18 Creating the CircuitPython Online IDE

13:04 How the CircuitPython Online IDE works

14:28 The challenges in building the CircuitPython Online IDE

20:34 Self-hosting the CircuitPython Online IDE

19:02 How the CircuitPython Online IDE helps educators

20:34 CircuitPython Online IDE’s key features

23:13 What’s next for the CircuitPython Online IDE

24:41 How to support the CircuitPython Online IDE

25:05 Where to learn more

25:23 Which board?

Enjoying the show? You can now sponsor the show, learn more at www.circuitpythonshow.com. Thank you for your support!

John Romkey Nov 10, 2025

Show notes

John Romkey joins the show and shares his CircuitPython tool, circremote, what it does, how it works, how he used Cursor and Claude to help write it, and more.

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Show Notes

00:00 Intro

00:56 John’s start with computers and electronics

6:25 circremote

9:21 circremote clean and emacs support

12:22 circremote’s sensor support and AI

14:23 Cursor with VS Code and Claude

19:27 Sensor and device support in circremote

21:32 Community sensor work

26:16 Which board?

Enjoying the show? You can now sponsor the show, learn more at www.circuitpythonshow.com. Thank you for your support!

Sam Blenny Oct 27, 2025

Show notes

Sam Blenny joins the show and shares his work with the Fruit Jam, including USB Host, a Color Checker, a Gamepad tester, and more.

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Show Notes

00:00 Intro

00:24 Sam’s start with computers and electronics

5:34 Discovering CircuitPython

Pumpkins vs Skeletons game

7:06 Working with the Fruit Jam and the Gamepad tester

9:24 USB Host MIDI Tester

11:12 The Fruit Jam Color Checker

13:49 USB Host

16:42 Which board?

Enjoying the show? You can now sponsor the show, learn more at www.circuitpythonshow.com. Thank you for your support!

Noe Ruiz Oct 13, 2025

Show notes

Noe Ruiz joins the show and shares how he started learning design and 3D modeling, creating the Layer by Layer tutorials, designing CAD parts, and more.

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Show Notes

00:00 Intro

00:19 Getting started with computers and electronics

1:38 Learning design

4:38 Snap-fit enclosures

6:36 3D Hangouts

8:28 Adafruit CAD Parts

12:05 Layer by Layer

13:35 Which board?

Enjoying the show? You can now sponsor the show, learn more at www.circuitpythonshow.com. Thank you for your support!

John Fletcher Sep 29, 2025

Show notes

In the kickoff of season 6, John Fletcher joins the show. John shares how he ported CircuitPython to web assembly, how it works, and how using Claude Code helped.

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Show Notes

00:00 Intro

00:23 John’s start with computers

4:07 John’s Discord nickname

5:05 CircuitPython and web assembly

6:43 How CircuitPython works in the browser

7:46 Advantages to using CircuitPython in the browser

9:25 Windows Subsystem for Linux

10:25 Using Claude Code

10:49 Managing the prompts

12:48 How to test CircuitPython in the browser

The CircuitPython web-editor with web assembly

13:33 Where to learn more

John’s GitHub repositories

Enjoying the show? You can now sponsor the show, learn more at www.circuitpythonshow.com. Thank you for your support!

Justin Myers May 19, 2025

Show notes

In the final episode of season 5, Justin Myers joins the show. Justin shares how he created the new connectionmanager library for networking in CircuitPython.

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