Engineering & Technology

Cobras are some of the most venomous snakes on the planet, also known for their intimidating hoods and swift strikes. But while their venom and striking power make them feared by many, the role of the cobra snake in ecosystems is invaluable, from controlling rat populations to maintaining a balance among predators.

The Python on hardware news wrap-up!

Episode 296 (October 23, 2024)

This is the Adafruit weekly Python on Microcontrollers newsletter video highlights!

The news comes from the Python community, Discord, Adafruit communities and more. It’s part of the weekly newsletter we do with has 11,429 readers! Subscribe to receive free every week (with zero spam).

Ladyada and PT provide this week’s video on Python on hardware news and more below.

Unlike most other animals, snakes do not have limbs to help them get from one place to another. Instead, they slither — but there's a little more to snake anatomy than how they move. Finely tuned for survival, snakes have specialized anatomy that let them thrive in diverse environments.

The racer snake is sleek and swift. Despite their sometimes intimidating speed, mostly harmless to humans. You may confuse racers for other snakes because of their color, but they have unique behaviors and characteristics that make them stand out.

Today, we’re diving into the world of the glass snake, more commonly known as a glass lizard. They aren’t actually snakes at all; they’re several species of legless lizard. That's right, glass lizards look an awful lot like snakes, but they have some key differences that set them apart.

Hakko’s polls are open – would you be interested in a PINK CHP-170 Cutter next year? Let them know here!

Here’s more from last night’s Ask an Engineer:

The Adafruit Feather ecosystem is so rich with hardware diversity, we wanted to share them, one each day. Today is the Adafruit RGB Matrix Featherwing Kit – For RP2040, M0 and M4 Feathers!

Ahoy! It’s time to create a dazzling light up project with our new RGB Matrix FeatherWing. Now you can quickly and easily create projects featuring your favorite 16 or 32-pixel tall matrix boards. Using our RGB Matrix library is easy and works wonderfully with any of our M0 or M4 based Feathers.

Please note: This wing is only tested/designed to work with the RP2040, SAMD21 M0 and SAMD51 M4 Feathers. It’s not for use with any other Feathers at this time. (That said, if you’d like to add support, we’d be happy to take a pull request on the library repo) For nRF52840 Feathers, see this ‘Wing.

This wing can be assembled in one of two ways. You can either solder in a 2×8 IDC shrouded header on the top, then plug in the IDC cable that came with your matrix. This makes it easy to stack on top of your Feather. Or, you can solder in the 2×10 socket header on the bottom of the Wing, and then stack your Feather on top. That way you can plug it directly into the back of the matrix *mind blown*

This FeatherWing will work great with any of our 16×32, 32×32 or 64×32 RGB matrices, and is definitely the easiest way to glow and go.

Either way you decide to go, you can plug a 5V DC power pack into the 2.1mm DC jack. That 5V is polarity protected and then output on the other side to a 5.08mm terminal block. An onboard regulator will provide 3.3V power to your Feather so you don’t need a separate USB or battery, this makes for a very compact build!

USE

The Adafruit RGB Matrix FeatherWings Guide provides details and use examples.

Guides:

• Adafruit Protomatter RGB Matrix Library
• RGB LED Matrices with CircuitPython
• RGB Matrix Slot Machine

Video:

Matthew North has both a Radio Shack 75-in-one electronics kit from the 1970s and a Cambridge Digital Recording Studio kit from the 1990s. While each kit is capable of various audio effects, combining them, perhaps running them through a digital audio workstation (DAW) provides many retro to modern possibilities.

Check out the video below and more on Hackaday.

On the heels of #SepTandy, Adafruit is celebrating #ShackToberFest, a celebration of all things Radio Shack and Tandy. Tag your social media posts #ShackToberFest!

Every week we’ll 3D print designs from the community and showcase slicer settings, use cases and of course, Time-lapses! This Week:

Crawling Pumpkins
By jajaum3d
https://www.printables.com/model/1011362-tiny-crawling-pumpkins
CR10S SmartPro
Green Purple PLA
04hr 07mins
X:254 Y:180 Z:73mm
.2mm layer / .4mm Nozzle
6% Infill / 1mm Retraction
200C / 60C
41g
60mm/s

Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!

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

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

Shop for parts to build your own DIY projects http://adafru.it/3dprinting

3D Printing Projects Playlist:

3D Hangout Show Playlist:

Layer by Layer CAD Tutorials Playlist:

Timelapse Tuesday Playlist:

Connect with Noe and Pedro on Social Media:

Noe’s Twitter / Instagram: http://instagram.com/ecken

Pedro’s Twitter / Instagram: http://instagram.com/videopixil

Harken back to the last time you found yourself trick-or-treating. You’re dressed in an amazing costume, you’ve warmed up your “Trick or treat!” call, you rap on the door — and oh no! Even though the house still has the orange glowy lights on and it’s Jack-O-Lantern flutteringly lit by a candle, they’re out o candy! If you’re not a treat giver and not a treat taker, let’s make sure you never run out of candy with this WiFi Candy Bowl Monitor from Tony DiCola via the Adafruit Learning System, featuring the Adafruit METRO 328 Fully Assembled – Arduino IDE compatible:

Build this candy bowl you can monitor remotely over a WiFi network so trick-or-treaters never leave your home empty handed. A simple infrared light sensor detects when the bowl is empty or full, and a CC3000 WiFi chip exposes the sensor data to your wireless network. You can telnet to a simple server running on the Arduino and ask it if the bowl is full of candy!

This tutorial is a great demo of using the CC3000 breakout/shield in server mode, and also with mDNS so you don’t need to know the IP address of the module!

See the project!

It’s Saving time! Subscribers to the Newsletter get 15% off The Halloween Gift Guide with the Code HALLOWEEN15

Working on a project for Halloween this year? Share it with us in the comments below, the Adafruit forums, Facebook, Discord, Instagram or Twitter [aka X]– (tag your posts #ElectronicHalloween). You can also send us a blog tip!

stoh4321_190445 shares:

for the correct position use pieces of filament inserted into the prepared holes in the models

download the files on: https://www.printables.com/model/990923-egg-dispenser

Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!

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

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

Shop for parts to build your own DIY projects http://adafru.it/3dprinting

3D Printing Projects Playlist:

3D Hangout Show Playlist:

Layer by Layer CAD Tutorials Playlist:

Timelapse Tuesday Playlist:

Connect with Noe and Pedro on Social Media:

Noe’s Twitter / Instagram: http://instagram.com/ecken

Pedro’s Twitter / Instagram: http://instagram.com/videopixil

tokyo2ooo shares:

German Ikea has the 3-piece cactus set, I designed a 3-pronged holder for them.

My girls wanted it to be “pink and cloud”, so that is what has been printed ^^

download the files on: https://www.printables.com/model/991134-ikea-cactus-stand

Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!

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

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

Shop for parts to build your own DIY projects http://adafru.it/3dprinting

3D Printing Projects Playlist:

3D Hangout Show Playlist:

Layer by Layer CAD Tutorials Playlist:

Timelapse Tuesday Playlist:

Connect with Noe and Pedro on Social Media:

Noe’s Twitter / Instagram: http://instagram.com/ecken

Pedro’s Twitter / Instagram: http://instagram.com/videopixil

ParazitCAT_2337775 shares:

An endless modular snake. It is completely modular, its idea is that it can be modified and extended indefinitely!) In the near future, various Heads, Tails and links will be made that can be combined to create a unique Snake!

download the files on: https://www.printables.com/model/991176-endless-modular-snake

Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!

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

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

Shop for parts to build your own DIY projects http://adafru.it/3dprinting

3D Printing Projects Playlist:

3D Hangout Show Playlist:

Layer by Layer CAD Tutorials Playlist:

Timelapse Tuesday Playlist:

Connect with Noe and Pedro on Social Media:

Noe’s Twitter / Instagram: http://instagram.com/ecken

Pedro’s Twitter / Instagram: http://instagram.com/videopixil

Discover the dynamics of Aries and Capricorn compatibility, where fire meets earth. Learn how passion and practicality blend in love, trust, and challenges.

Discover how Virgo and Aquarius compatibility works in love, friendship, and life. Learn how their differences can create both challenges and unique connections.

PhiRequiem shares:

3D-printed ring carabiner to use with a Nalgene water bottle, and I made it using PLA.

download the files on: https://www.thingiverse.com/thing:6751580

Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!

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

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

Shop for parts to build your own DIY projects http://adafru.it/3dprinting

3D Printing Projects Playlist:

3D Hangout Show Playlist:

Layer by Layer CAD Tutorials Playlist:

Timelapse Tuesday Playlist:

Connect with Noe and Pedro on Social Media:

Noe’s Twitter / Instagram: http://instagram.com/ecken

Pedro’s Twitter / Instagram: http://instagram.com/videopixil

Discover the calming power of a worry stone! Learn how this ancient tool relieves stress, boosts mindfulness, and promotes emotional balance through touch.

3DBob shares:

Jar holder and Jar opener; specifically for 24 ounce jar. The jar is 80mm square.

Suggest 6 perimeters, 20% infill, PETG for strength.

If you need to scale this, suggest you print a thin amount and determine the scale factor.

download the files on: https://www.printables.com/model/991087-jar-holder-and-opener

Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!

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

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

Shop for parts to build your own DIY projects http://adafru.it/3dprinting

3D Printing Projects Playlist:

3D Hangout Show Playlist:

Layer by Layer CAD Tutorials Playlist:

Timelapse Tuesday Playlist:

Connect with Noe and Pedro on Social Media:

Noe’s Twitter / Instagram: http://instagram.com/ecken

Pedro’s Twitter / Instagram: http://instagram.com/videopixil

PaulPhillips shares:

This jig will allow you to compare the relative strengths of neodymium magnets.
Press fit a single magnet into the hexagonal base and leave it.

download the files on: https://www.printables.com/model/992120-6×3-neodymium-magnet-strength-comparator-testing-j

Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!

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

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

Shop for parts to build your own DIY projects http://adafru.it/3dprinting

3D Printing Projects Playlist:

3D Hangout Show Playlist:

Layer by Layer CAD Tutorials Playlist:

Timelapse Tuesday Playlist:

Connect with Noe and Pedro on Social Media:

Noe’s Twitter / Instagram: http://instagram.com/ecken

Pedro’s Twitter / Instagram: http://instagram.com/videopixil

CoitusMysteri_112431 shares:

Simple USB/SD Card holder for pegboards

download the files on: https://www.printables.com/model/991365-usb-sd-micro-sd-card-holder-for-pegboard

Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!

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

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

Shop for parts to build your own DIY projects http://adafru.it/3dprinting

3D Printing Projects Playlist:

3D Hangout Show Playlist:

Layer by Layer CAD Tutorials Playlist:

Timelapse Tuesday Playlist:

Connect with Noe and Pedro on Social Media:

Noe’s Twitter / Instagram: http://instagram.com/ecken

Pedro’s Twitter / Instagram: http://instagram.com/videopixil