Join Scott as he continues polishing CircuitPython on Zephyr and answers questions folks ask.

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

Thanks to dcd for timecodes:

0:00 Getting started

1:40 Welcome - and grabs the macropad with rp2040 microprocessor

4:00 discuss debug connections

6:00 finding the schematic

8:08 progress redirected towards building zephyr in CI

9:43 CI and scheduler

12:00 tricks for building on windows

13:50 circuitpython/ports/zephyr ( fetching blobs for CI builds )

15:08 UART and USB I/O with ports/zephyr-cp

19:53 using sublime merge to review recent changes

24:05 on big flaw in ninja - concurency management

25:00 back to zephyr2cp.py

26:00 split out USB vs storage

28:40 adafruit usb_vid_pid.csv tracking

30:35 commit recent changes

32:30 pre-commits are failing - why?

34:00 scheduler failed?

37:25 trying out the new sublime outline extension

38:00 shared_bindings_matrix.py

42:26 changing autogenede file generation

43:03 git mv ST autogen files

46:00 boldly git rm */*..... and regenerate them

47:48 TOML Kit (tomlkit ) allows comments!

50:12 more cptools work

51:00 stm32 discovery kit

51:44 RA8 may be in the future :-)

57:00 review stm32h7b3i_dk.dts

1:07:00 continue work on renesas_ek_ra8d1 port

1:24:00 what goes onto the second core of disimilar dual core systems like Portenta

1:31:48 hello from ra8 zephyr!

1:35:16 ra6 building too!

1:35:50 see if "make html" works

1:38:20 need to exclude the zephyr docs

1:42:00 peek at MCUmgr - Zephyr project docs

1:43:20 add zephyr-cp docs to supported_ports.rst

1:44:00 update README.md in zephyr-config

1:46:00 pushed to github tannewt/circuitpython.git

1:50:57 look at things that broke the build

1:55:07 commit a few changes - to be squashed later :-)

1:59:30 next steps in the zephyr thread

2:01:42 protothreads discussion

2:02:48 tasks for next week - (nordic)

2:05:17 wrap up - but first - investigate build failures :-)

2:10:00 re-wrap up :-)

-----------------------------------------

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/

-----------------------------------------

#circuitpythonparsec

Easily shift pixels around your display with LED matrix shifting.

code example: https://github.com/jedgarpark/parsec/blob/main/2025-01-30/code.py

https://www.adafruit.com/product/902

Learn about CircuitPython: https://circuitpython.org

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

-----------------------------------------

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/

-----------------------------------------

Adafruit 1.28" 240x240 Round TFT LCD Display with MicroSD - GC9A01A

with EYESPI Connector (0:09) https://www.adafruit.com/product/6178

RJ-50 (10P10C) Round Panel Mount Adapter Plug (0:49)

https://www.adafruit.com/product/6117

NeoPixel LED Outdoor Netting - 100 x 20 LEDs - 1x5 Meter Sizing (2:02)

https://www.adafruit.com/product/6166

NeoPixel LED Outdoor Netting - 80 x 20 LEDs - 1x4 Meter Sizing (2:02)

https://www.adafruit.com/product/6165

Adafruit Sensirion SHT45 Precision Temp amp; Humidity with PTFE - STEMMA

QT / Qwiic (6:12) https://www.adafruit.com/product/6174

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

-----------------------------------------

New nEw NEWs New Products, News, and more: https://www.adafruit.com/newsletter #newnewnew

Shop for all of the newest Adafruit products: http://adafru.it/new

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

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

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/

-----------------------------------------

JOHN PARK'S WORKSHOP LIVE 1/30/25

Tank Meter

CircuitPython Parsec

JPPPoW recap

Projects

espresso shot pulling demo

and more!

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

-----------------------------------------

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/

-----------------------------------------

This week's EYE ON NPI is as ethereal as it is magical: it's Bel Fuse's 1xN port MagJack and specialty ICMs (https://www.digikey.com/en/product-highlight/b/bel-fuse/1xn-port-magjack-and-specialty-icms). These are specially made Ethernet and Ethernet-USB combo jacks that have magnetic transformers inside to make integration with your Ethernet PHY (https://en.wikipedia.org/wiki/Ethernet_physical_layer) in order to communicate on the network. MagJacks make designs smaller, and less noisy - they're a great way to simplify your next Ethernet design and get it to market faster!

Wireless this, 5G that - what we sometimes need are WIRES! Wired networking is much reliable than wireless, and can go far distances with no loss of signal strength. Particularly as you can also put power over the same wires for nodes that need no other cabling, Ethernet is a reliable networking standard - don't discount it just because of its age! One nice benefit of it is you don't have to do SSID/password setup, it's truly plug and play.

Three things are required to add Ethernet. First is a microcontroller or microcomputer that has built in Ethernet Medium Access Control (https://en.wikipedia.org/wiki/Medium_access_control), the low level packet forming technology. Some chips have this built in, such as the ESP32 (https://www.digikey.com/short/dz5pv22m) - or you can use a companion chip like the WIZ5xxx series (https://www.digikey.com/en/supplier-centers/wiznet) that can be controlled over SPI. Then, to get onto a network, you'll want the ubiquitous mechanical RJ-45 connector (https://www.digikey.com/short/t28834zr) that will lead to Cat-5 or Cat-6 cable (https://www.digikey.com/short/pnjh3t8d).

In between, the signal levels need to be isolated and converted to the +-2.5V differential signal. To do that we need what is colloquially referred to as the 'magnetics': a cluster of transformers and chokes that will make the signal differential, isolate the PHY from the outside world and also reduce the risk of outside spikes and shocks. Both the Wiznet and ESP32 datasheets, for example, have example wiring to help you identify the right configuration. Note that not all chips have the same magnetics impedances / configurations: it depends on the output signal and impedance. Second, this is separate than PoE magnetics (https://www.adafruit.com/product/3847) which are separate from the data transfer.

If you don't care about optimizing board size and complexity, you can always use external magnetics with a plain jack. Bel has a full selection of dozens of magnetics for any configuration you may need (https://www.belfuse.com/product-detail/icm-s-discrete-lan-magnetics). For example the Seeed Ethernet shield (https://www.digikey.com/short/70cvntbm) uses this technique because the PCBA is so big they have space to spare. However, when you want to keep your board compact, you can upgrade your design to use one of Bel Fuse's 1xN port MagJacks. (https://www.digikey.com/en/product-highlight/b/bel-fuse/1xn-port-magjack-and-specialty-icms)

MagJacks provide two big benefits (https://www.digikey.com/en/product-highlight/b/bel-fuse/1xn-port-magjack-and-specialty-icms): one they're smaller than separate magnetics/jacks and second, the magnetics get enclosed in the metal shell of the jack which provides some EMI shielding. For example, we used a combo-jack on the Ethernet Featherwing (https://www.digikey.com/short/9w49r80j) to keep the design single-sided. Which is why we were excited to see the Bel Fuse MagJacks pop up on https://www.digikey.com/new - they're a trusted component we've used before.

For this week's EYE ON NPI, DigiKey is highlighting a selection of the new Bel Fuse MagJacks, with dozens of options available (https://www.digikey.com/en/product-highlight/b/bel-fuse/1xn-port-magjack-and-specialty-icms). There's classic horizontal ones with LEDs (https://www.digikey.com/en/products/detail/bel-fuse-inc/P01-0002-01/25588398). Vertical ones! (https://www.digikey.com/en/products/detail/bel-fuse-inc/P01-1AF2-01/25588382) Countersunken for low clearances (https://www.digikey.com/short/5b9mb454) As well as some nifty combo-units that contain both USB type A and Ethernet. (https://www.digikey.com/en/products/detail/bel-fuse-inc/P01-3CG3-01/25588395) Just make sure that the internal magnetics match your chipset's needs before selecting it for integration.

DigiKey is in the process of stocking all the varieties, but if you want to get started, the P01-1AA2-01 (https://www.digikey.com/short/pw02p9m9) is in stock now for immediate delivery. Order today and you can get this part in your hands by tomorrow morning to help optimize your next Ethernet design!

The hush-hush news from Adafruit in Industry City, Brooklyn, New York. Broadcast January 29, 2025

These are items or concept products that may/might/could be introduced into the Adafruit store in the future (or not)! It's not out yet, so please don't ask questions or ask when it'll be available....

Check out the Adafruit store for all the great products that are available and for coming soon products you can sign up to be notified when they are in stock. https://www.adafruit.com/new

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

Also visit DigiKey for Adafruit products at http://www.digikey.com/

-----------------------------------------

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/

ASK AN ENGINEER 1/29/2025 LIVE!

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

-----------------------------------------

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/

-----------------------------------------

#adafruit #aşk #engineering

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.

This week @adafruit we’re taking a look at our motorized turntable learn guide. Pedro’s time visualizer for toddlers now has working CircuitPython code. Checking out projects from the community. Our Timelapse for this week features a print-in-placed articulated cat designed by Salvadori.#13;

#13;

Turntable Video#13;

https://youtu.be/w7RCZIHGNE4 #13;

#13;

Turntable Learn Guide#13;

https://learn.adafruit.com/stepper-motor-turntable #13;

#13;

TMC2209 Driver: #13;

https://www.adafruit.com/product/6121#13;

#13;

KB2040: #13;

https://www.adafruit.com/product/5302#13;

#13;

1.3in OLED: #13;

https://www.adafruit.com/product/938#13;

#13;

Rotary Encoder STEMMA QT#13;

https://www.adafruit.com/product/5880#13;

#13;

MPM3610 5V Buck Converter#13;

https://www.adafruit.com/product/4739#13;

#13;

Timelapse Tuesday#13;

#13;

Kawaii Cat Valentine By Salvadori#13;

https://makerworld.com/en/models/1005325 #13;

https://youtu.be/oMWQ5ggYZTw #13;

#13;

Community Makes#13;

#13;

https://www.printables.com/make/2366928?comment_id=2366928 #13;

https://www.printables.com/make/2370861?comment_id=2370861

#newproducts

JP’s Product Pick of the Week 1/28/25 Newxie TFT Display RECAP

https://www.adafruit.com/product/6113

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

-----------------------------------------

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/

-----------------------------------------