Pi Day (π) 2026! #PiDay 🥧

Mathematicians rejoice, this is your day, -day is here. We hope you aren’t irrationally excited but 3.14 only rolls around once a year.

From the American Mathematical Society:

The holiday honors a special number: “Pi,” which is pronounced just like “pie”. Pi is an infinite, non-repeating decimal, so it’s usually abbreviated to 3.14, hence we celebrate it on March 14!  Mathematics represents pi with this symbol: $\pi$.

What does the number mean? For every circle, its distance around (circumference) is always a little more than three times its widest distance across (diameter). When you divide the circumference by the diameter, you get this fascinating number that has no end: 3.1415926535897932384…  Indeed, computers have calculated pi to 105 trillion places (and counting) and have found no repeating sequences. As the ratio of a circle’s circumference to its diameter, $\pi$ is irrational and transcendental—qualities sure to bring a twinkle to any mathematician’s eyes.

Read more!

Learn more about Pi!

• Why Pi Matters
• Pi Day Activities for Kids
• 11 fun facts to help celebrate Pi Day
• Calculating Pi with an original Nintendo Entertainment System
• Stand-up Maths Calculated Pi with Colliding Blocks

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Pedal Powered Battery Charger

Gene’s Green Machine shared this video on Youtube!

Charging batteries with a DPS5015 and a couple variations of pedal generators. I also show the difference in effort pedaling a “tire on” trainer verses pedaling an e-bike motor based pedal generator. E-bike motor is much easier!

See more and Find the right battery for your project at Adafruit!

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NEW PRODUCT – Pimoroni Inventor 2350 W (Pico 2 W Aboard) – PIM733

NEW PRODUCT – Pimoroni Inventor 2350 W (Pico 2 W Aboard) – PIM733

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If you want to jump in fast into crafting an electronic project, without needing to solder or even just a breadboard, Pimoroni’s Inventor 2350 W gives you a ‘bento box’ of delicious popular treats with a Pico 2 W already built in for instant gratification.

The Inventor is a multi-talented board that does (almost) everything you might want a robot, prop or other mechanical thing to do. Drive a couple of standard motors (or fancy motors with encoders)? Yep! Add up to six servos? Sure? Attach a little speaker so you can make noise? No problem! It’s also got a battery connector, so you can power your inventions from AA/AAA or LiPo batteries, and carry your miniature automaton/animated top hat/treasure chest that growls at your enemies around with you, untethered.

You also get a ton of options for hooking up sensors and other gubbins – there’s two Qw/ST connectors for attaching breakouts, three ADC pins for adding analog sensors, photoresistors and such, and three spare digital GPIO you could use for LEDs, buttons or digital sensors. Speaking of LEDs, we’ve also somehow managed to fit in 12 addressable LEDs (AKA Neopixels) – one for each servo and GPIO/ADC channel (or just use the whole lot for making rainbows, that’s fine too).

Best of all though, is the brains of the outfit – the onboard Raspberry Pi Pico 2 W, which will give your creations 2.4GHz wireless connectivity. Use it to trigger your mechanical friends to do their thing remotely, or hook your robotic canary up to an API and report the air quality in your neighbourhood.

Since it uses Pico 2 W and RP2350 as the base board, there’s plenty of support for programming it in Arduino, Pico SDK, MicroPython, CircuitPython, or anything else that the Pico 2 W can wrangle!

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Plant Growing Pot – 360° Full Spectrum Simulated Sunlight, Usable Indoors and Outdoors, Compatible with Desktop Plant Stands #3DThursday #3DPrinting

zrl2088 shares:

Plant Growing Pot – 360° Full Spectrum Simulated Sunlight

Usable Indoors and Outdoors, Compatible with Desktop Plant Stands

download the files on: https://makerworld.com/en/models/2481118-plant-growing-pot-360deg-full-spectrum-simulated-s

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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

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John Park’s Workshop — LIVE TODAY 3/12/26

It’s JOHN PARK’S WORKSHOP — LIVE! — Coming up at 4pm ET / 1pm PT Today!  LIVE TEXT CHAT IS HERE in the Adafruit Discord chat!

• Project: ESPectre
• CircuitPython Parsec: MIDI Visualizer
• Tool Tips 
• Learn Guides: Arcade Fightstick
• Retro Gear 
• Stable levels of Lars
• and more!

The live video will be on Youtube LIVE, Twitch, Periscope (Twitter) and Facebook.

Join maker John Park in his workshop each week as he builds, demos, hacks, and mods projects live on air! “John Park’s Workshop — LIVE” is the place to see creative projects come to life, as John uses a wide variety of tools and techniques to make everything from video game controllers to synthesizers to LED dance shoes to coffee robots, using digital fabrication, hand and power tools, microcontrollers, and more. Come on into the chat to participate in the fun! Every Thursday @ 4pm ET/1pm PT!

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LIVE NOW! SHOW and TELL 3/11/2026 with @blitzcitydiy #ShowandTell @adafruit

The biggest and longest running worldwide online Show and Tell LIVE! Right now! 3/11/2026 at 7:30pm Eastern. – video.

Hosted this week by Liz Clark.

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babyshark – Wireshark made easy (in your terminal)

babyshark by Vignesh Natarajan helps make Wireshark made easy (in your terminal).

Wireshark is the world’s leading network protocol analyzer, used for capturing and interactively browsing traffic running on a computer network. It is a free, open-source tool used by network administrators, security professionals, developers, and educators to troubleshoot network issues, perform security analysis, and develop communication protocols.

Babyshark is a PCAP TUI that helps you answer:

• What’s using the network?
• What looks broken/weird?
• What should I select next?

It’s on GitHub under an open MIT license.

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