#circuitpythonparsec

It's simple to made cool disco light patterns for NeoPixels using random integers for color component values.

To learn about CircuitPython: https://circuitpython.org

https://github.com/todbot/qtpy-tricks#disco-party-on-built-in-neopixel

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The news from Adafruit in New York. Broadcast May 11, 2022

https://www.adafruit.com/new

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 - we are shipping!

Also visit Digi-Key for Adafruit products at http://www.digi-key.com/

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Soldering headers onto panels of SCD-30 breakouts (0:03)

https://www.adafruit.com/product/4867

Stencil machine stenciling (0:38)

PnP machine picking and placing parts in slow motion (1:11)

eInk display being tested, and viewed through a magnifying glass (1:40)

https://www.adafruit.com/product/3625

Kitting table covered in kits (2:21)

Tester table loaded up with testers (2:23)

Box full of Raspberry Pi SD cards (2:26)

Construction forklift (1:30)

#AdavancedManufacturing #NYC #Manufacturing

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

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Chip Shortage is a new feature video by Adafruit's Ladyada to highlight items that are in short supply or possibly "unobtainium" (with no known return date to the market).

This week is the Texas Instruments (TI) INA sensors, including the INA219. These are used in the Adafruit INA219 breakout https://www.adafruit.com/product/904

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Adafruit is working night and day to keep products in stock and deliver new products during the chip shortage. Visit https://www.adafruit.com/new to see what new items have been released to find redesigned products with chips that are available.

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

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

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

This week's EYE ON NPI has an extra I bonus feature - we're featuring the NXP P3S0200GM I3C Switch with Hardware Select and Enable. (https://www.digikey.com/short/td77904f) You might be thinking we made a typo there, as you may be familiar with I2C but have you heard of I3C? Yep, that's three I's for ya, and you'll probably start seeing more sensors, devices and microcontrollers that support I3C which is an extension of I2C with many improvements.

I2C is a sensor interface you are probably well familiar with, just about every microcontroller has I2C hardware support, and about half of peripheral devices and sensors use I2C for data transfer or configuration. I2C is easy to wire up: you only need two data lines. It's a fairly simple overall communication system: each devices has a 7-bit address, with 1 bit for read/write commands, then data is sent after. You can put multiple devices on one I2C bus as long as the addresses don't collide, (https://learn.adafruit.com/i2c-addresses) great for low-pin-count setups or chaining. And, hey did you know that NXP invented I2C? Philips, which then became NXP, originally published version 1.0 the I2C specification in 1992 in app note UM10204 (https://www.nxp.com/docs/en/user-guide/UM10204.pdf) - and because it was a well-written, open, and royalty/license-free standard, the entire industry joined in.

But, there are a few things about I2C that can drive folks a little batty. First up is the speed limitations. I2C uses pull-ups for raising the voltage on the 'open drain' connections, but it takes time to charge and drain the capacitance of lines and gate inputs through a resistor. I3C does not use external resistors, instead there's an active pull-up that transitions between Open-Drain and Push-Pull mode. (https://www.mipi.org/node/2604) This reduces power usage and allows I3C to run at a spicy 12MHz, well in line with SPI speeds.

Next up, there's bus contention - woe is the engineer who has to deal with clock stretching on a bus, or missed clocks. I3C thankfully does not permit clock stretching! (https://www.mipi.org/node/1247) peripherals cannot take control of the clock by keeping it pulled down. Instead all devices must respect the clock. "But!" you are saying "what if I'm designing a peripheral and over I3C we get a sensor wakeup or read request, and I'm not ready to immediately answer in time?" Normally you'd have to have to either use polling for a data-ready bit (yuck, uses a lot of power, bandwidth and time) or you can use an IRQ pin. But if you're using IRQ pins then you've just lost the benefits of having a shared 2-wire bus! Well there's another nifty capability in I3C for in-band interruption management where the controller can hand off the bus to peripherals to notify when they are ready to be listened to. There's a great document from NXP showing the high and low level implementation / trace details of I3C vs I2C that we recommend you check out here (https://community.nxp.com/pwmxy87654/attachments/pwmxy87654/tech-days/256/1/AMF-DES-T2686.pdf)

As you start adding I3C controllers and targets into your embedded systems, you may still find yourself dealing with address collisions, or maybe you want to have two controllers connect to one peripheral. Since I3C has a stricter timing requirement for dealing with the high speeds it can perform at, you'll want a switching chip that is designed for I3C. That's where the NXP P3S0200GM I3C Switch will come to your rescue. (https://www.digikey.com/short/td77904f) It's from NXP who helped bring I3C to market so you know it's going to work exactly as the specification intends and will also be back-compatible with I2C devices.

And, best of all, the NXP P3S0200GM I3C Switch (https://www.digikey.com/short/td77904f) is in stock now for immediate shipment from Digi-Key, perfect for placement into your next design. Even if you're only using I2C right now, you'll be future-proof ready for when sensor and chip revisions start coming out with I3C support. Order today and you'll be switchin' by tomorrow afternoon.

JOHN PARK'S WORKSHOP LIVE 5/12/22 ESP32 QT Py Video Clock

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

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WiFi Antenna with w.FL / MHF3 / IPEX3 Connector (0:17)

https://www.adafruit.com/product/5445?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts

EYESPI Cable - 18-pin 50mm long Flex PCB (FPC) A-B Type (1:34)

https://www.adafruit.com/product/5462?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts

STEMMA QT / Qwiic JST SH 4-Pin Cable - 400mm long (1:50)

https://www.adafruit.com/product/5385?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts

Magnetic USB Charging Cable for 4 Pin 0.1" Magnetic Connector - 60cm

long (3:04) https://www.adafruit.com/product/5412?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts

Computer Repair Screw and Standoff Kit (4:30)

https://www.adafruit.com/product/5411?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts

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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

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

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The wonderful world of Python on hardware! Episode 180 (May 11, 2022). This is our weekly Python video highlights! Ladyada and PT review the Python on hardware news of the week.

The news comes from the Python community, Discord, Adafruit communities and more. It’s part of the comprehensive newsletter we do each week.

The video playlist of episodes is here:

http://adafru.it/pohepisodes

Sign up for the Python on Microcontrollers weekly email newsletter here:

https://www.adafruitdaily.com/

Read the newsletters past and present at

https://www.adafruitdaily.com/category/circuitpython/

Learn all about CircuitPython here:

https://www.circuitpython.org/

https://adafruit.com/circuitpython/

Join us on Discord! https://adafru.it/discord/

Visit the Adafruit shop online, we're open for business - http://www.adafruit.com

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

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

This week @adafruit we’re making LED neon signs! Prototyping more of the nintendo switch slash steam deck inspired TFT display pendant. The timelapse this week is a storage holder shaped like a coiled snake by 3D_NIDO, it’s gonna be sick!

Learn Guide -

https://learn.adafruit.com/led-neon-signs-with-neopixels

YouTube Video

https://youtu.be/kxFSyqw5DW4

Code on github

https://github.com/adafruit/Adafruit_Learning_System_Guides/blob/main/NeoPixel_Neon_Signs/code.py

Neon NeoPixel Strips

https://www.adafruit.com/product/4310

QT Py RP2040

https://www.adafruit.com/product/4900

USB-C Cable

https://www.adafruit.com/product/5044

5V Power Supply

https://www.adafruit.com/product/1994

Timelapse Tuesday

Snake Storage - 3D_NIDO

https://cults3d.com/en/3d-model/game/snake-3d_nido

https://youtu.be/JmNCwGQRSc8

Sea Dragon - DIVINE3DDESIGN

https://cults3d.com/en/3d-model/art/majestic-sea-dragon-fully-articulated

https://youtu.be/IdSn5vWH-vo

https://www.printables.com/model/7260-raspberry-pi-zero-stand/comments#preview-comment

https://www.thingiverse.com/make:1031004 tripler stand

https://www.thingiverse.com/make:1031000 qtpy case

https://www.thingiverse.com/make:1031267 iphone case

https://www.thingiverse.com/thing:5364356 rgb matrix handle

https://www.printables.com/model/41426-handles-for-rgb-matrix-sand/comments#preview-comment

https://www.printables.com/model/7149-links-hylian-shield/comments#makes hylian shield

https://www.thingiverse.com/make:1028556 hylian shield remix

https://www.thingiverse.com/thing:5357332 midi fighter case remix

https://www.printables.com/model/7173-star-trek-combadge-circuit-playground/comments

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

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ASK AN ENGINEER 5/11/2022 LIVE

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 #askanengineer #diy