Adafruit Industries

Build your own glowing LED bubble wand with Adafruit's Mini Sparkle Motion controller and waterproof LEDs. We provide the 3d printable files and detailed instructions on how to assemble the wand, and even tell you our secret recipe for giant bubbles.

This project uses WLED, a free, open-source LED control program. Control the lights on your bubble wand using your smart phone or any web browser over WiFi.

Check out the full tutorial here: https://learn.adafruit.com/light-up-bubble-wand-with-wled/overview

Visit the Adafruit shop online - http://www.adafruit.com

Mini Sparkle Motion Controller - https://www.adafruit.com/product/6160

Erin St Blaine Designer - http://www.erinstblaine.com

Shane Romick Bubble Artist: https://shaneromick.com/

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LIVE CHAT IS HERE! http://adafru.it/discord

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New tutorials on the Adafruit Learning System: http://learn.adafruit.com/

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Notes document is available here, with timecodes: https://github.com/adafruit/adafruit-circuitpython-weekly-meeting/blob/main/2026/2026-07-20.md

Join here for the chat all week: http://adafru.it/discord

The CircuitPython Weekly normally is held at 2pm US ET/11am us PT on Mondays. Check the #circuitpython-dev channel on Discord for notices of change in time and links to past meetings. Meeting times are also available in iCal format using the following link: https://raw.githubusercontent.com/adafruit/adafruit-circuitpython-weekly-meeting/master/meeting.ical.

CircuitPython development is sponsored by Adafruit. Please support them by purchasing hardware from https://adafruit.com.

Reminders: Podcast available on most services. Let us know if we’re missing some.

Visit the Adafruit shop online - http://www.adafruit.com

0:00 Housekeeping

1:56 Community News

4:20 State of CircuitPython, Libraries & Blinka

11:26 Hug Reports

14:54 Status Updates

22:33 In the Weeds

23:10 Wrap-up

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LIVE CHAT IS HERE! http://adafru.it/discord

Subscribe to Adafruit on YouTube: http://adafru.it/subscribe

New tutorials on the Adafruit Learning System: http://learn.adafruit.com/

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Join Scott as he hacks on the CircuitPython powered gameboy cart. He'll also answer any questions folks have.

Visit the Adafruit shop online - http://www.adafruit.com

Thanks to dcd for timecodes:

0:00 Getting started

1:57 hello and welcome to Deep Dive

2:40 Circuit Python (CP) from Adafruit makes it easy to program microcomputers

3:16 This week - working on GameBoy (GP) custom cart to use CP

5:08 GB cart features

7:27 Power up GB showing Nintendo

9:43 switch to Konsole and CP REPL - showing "Adafruit"

10:34 the "Adafruit" logo trick explained

11:47 continue Gameboy cart hacking

12:33 rp2350 gameboy cartridge firmware - croco cartridge V2 (github )

13:43 emulate RAM without CPU (using PIO) https://github.com/shilga/rp2350-gameboy-cartridge-firmware

15:57 game boy memory access sequence ( https://iceboy.a-singer.de/doc/mem_patterns.html )

18:30 CP _gbio PIO code ( https://github.com/tannewt/circuitpython/blob/pygb2350/ports/raspberrypi/common-hal/_gbio/__init__.c )

21:30 rp2040 and rp2350 PIO datasheets and PIO overview

26:30 CRC 'trick' to transform address from GB to RAM ( summation )

37:53 check out mermain.live to visualize the generated block diagram using mermaid-cli

44:00 back to the PIO code

47:46 LLM discussion - DeepSeek 4 / DwarfStar

51:17 CP with latest PICO_SDK ?

55:10 USB vs. Serial Logging

56:20 PIO debug trace shows all the bits...

1:02:10 RP2 I/O input/output driving discussion

1:05:10 CP docs on circuitpython.org

1:06:30 gbdev.io and vsync

1:07:04 plan on next week with scott, and visit the discord

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LIVE CHAT IS HERE! http://adafru.it/discord

Subscribe to Adafruit on YouTube: http://adafru.it/subscribe

New tutorials on the Adafruit Learning System: http://learn.adafruit.com/

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Demoscene graphics demo running on Fruit Jam. Music by kqvc.

John Park Learn Guide coming soon.

Visit the Adafruit shop online - http://www.adafruit.com

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LIVE CHAT IS HERE! http://adafru.it/discord

Subscribe to Adafruit on YouTube: http://adafru.it/subscribe

New tutorials on the Adafruit Learning System: http://learn.adafruit.com/

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#circuitpythonparsec

Rotate a bitmap with ease using bitmaptools.rotozoom in CircuitPython.

code example: https://github.com/jedgarpark/parsec/blob/main/2026-07-16/

https://www.adafruit.com/product/5872

Learn about CircuitPython: https://circuitpython.org

Visit the Adafruit shop online - http://www.adafruit.com

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LIVE CHAT IS HERE! http://adafru.it/discord

Subscribe to Adafruit on YouTube: http://adafru.it/subscribe

New tutorials on the Adafruit Learning System: http://learn.adafruit.com/

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John Park's Workshop Live 7/16/26

Projects

JPPPoW recap

CircuitPython Parsec

Learn Guide

tool tips

gear report

retro tech

and more!

Visit the Adafruit shop online - http://www.adafruit.com

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LIVE CHAT IS HERE! http://adafru.it/discord

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Adafruit on Instagram: https://www.instagram.com/adafruit

Subscribe to Adafruit on YouTube: http://adafru.it/subscribe

New tutorials on the Adafruit Learning System: http://learn.adafruit.com/

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To show and share a project at 7:30pm Eastern today, view the chat or in discord https://adafru.it/discord and look for the JOIN link to join. For best results, be on a wired network connection and use a headset and microphone.

Rotozoom demoscene graphics demo running on Fruit Jam. Music by kqvc.

John Park Learn Guide coming soon.

Visit the Adafruit shop online - http://www.adafruit.com

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LIVE CHAT IS HERE! http://adafru.it/discord

Subscribe to Adafruit on YouTube: http://adafru.it/subscribe

New tutorials on the Adafruit Learning System: http://learn.adafruit.com/

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This week @adafruit Pedro continues his work on the flight tracker with lunar transit features. Noe is designing the enclosure for a voicebox with effects. This week’s timelapse features a pool noodle numchucks.

Qualia ESP32-S3:

https://www.adafruit.com/product/5800

2.1in TTL Round Display with Touch:

https://www.adafruit.com/product/5792

Adafruit Feather RP2350 with 8MB PSRAM:

https://www.adafruit.com/product/6130

I2S Amplifier MAX98357A

https://www.adafruit.com/product/3006

I2S MEMs Mic IC-43434

https://www.adafruit.com/product/6049

Timelapse Tuesday

Pool Noodle Numchucks By CompliantDesigns

https://makerworld.com/en/models/1497093-pool-noodle-numchucks

https://www.youtube.com/watch?v=hf8gYLe6R9Y

Community Makes

https://www.printables.com/make/3519285

https://www.printables.com/make/3521614

https://www.printables.com/model/1771557-adafruit-perma-proto-quarter-sized-breadboard-case

https://www.thingiverse.com/make:1263796

#newproducts

JP’s Product Pick of the Week 7/14/26

ADS7128 8 Channel ADC & GPIO Expander

https://www.adafruit.com/product/6494

Deep discount during livestream

Visit the Adafruit shop online - http://www.adafruit.com

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LIVE CHAT IS HERE! http://adafru.it/discord

Adafruit on Instagram: https://www.instagram.com/adafruit

Subscribe to Adafruit on YouTube: http://adafru.it/subscribe

New tutorials on the Adafruit Learning System: http://learn.adafruit.com/

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