Uno R4

Building a controller for tiny Z scale model trains

Arduino Team — March 16th, 2026 Electric model trains are brilliant in their simplicity. The locomotives have little electric motors and the rails on the tracks act as wires to get power to those motors. But as is always the case with electric motors, there are varying levels of sophistication when it comes to speed control. To upgrade his ancient Z scale model train set, Clem Mayer from element14 Presents built this high-quality controller. Model...

March 16, 2026Uncategorized, , , , 0 Comments
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This LEGO alarm clock is as loud as a rocket launch

Arduino Team — February 16th, 2026 So many of us struggle to wake up in the morning and end up sleeping through our alarms. You may even be the kind of person who will continue sleeping, even as your alarm clock is blaring right next to you for 10 minutes. If so, you’ll want to check out this megaphone-powered LEGO alarm clock built by Milos Rasic. The starting point for this project was LEGO’s new...

February 16, 2026Uncategorized, 0 Comments
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The MicroBox is a handheld game console that runs on an Arduino UNO R4

Arduino Team — February 10th, 2026 That shiny new Arduino UNO R4 board that you got has quite a bit of power under the hood, thanks to its Renesas RA4M1 Cortex-M4 microcontroller. It has more than enough power to run games and one great way to take advantage of that is by building Szymon Kubica’s MicroBox handheld console. The MicroBox design should be suitable for both the UNO R4 Minima and UNO...

February 10, 2026Uncategorized, , , , 0 Comments
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This Twister-inspired coffee table controls things resting on it

Arduino Team — January 29th, 2026 Smart home and IoT devices are nice and all, but controlling them always feels a bit clunky. It seems like it always comes down to trying a voice command and then, when that fails, opening an app on a smartphone and pushing a button. That’s why Unnecessary Inventions’ Matty Benedetto came up with this much more natural coffee table-based control system. This is a coffee table with several large colorful...

January 29, 2026Uncategorized, , , , , 0 Comments
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A super-sized set of digital calipers for giants

Arduino Team — December 26th, 2025 Every year, some of YouTube’s most prolific makers get together to coordinate a Secret Santa exchange among themselves, then post videos of the results. The only rule is that they have to create the gifts. This year, Matty Benedetto (Unnecessary Inventions) got Austin Bradley in the exchange. For Bradley’s present, Benedetto constructed this set of digital calipers suitable for giants. These calipers may be huge, but they do the same...

December 26, 2025Uncategorized, , , 0 Comments
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Fixing the garage fridge with an Arduino controller

Arduino Team — December 10th, 2025 Every garage needs a refrigerator to keep drinks cold during sweaty projects, but Rick Fryar’s Sanyo mini fridge was on the blink. Seemingly at random, it would either run the condenser constantly until everything was frozen, or not run the condenser at all. To get it working again without spending a fortune, Fryar used an Arduino to control the refrigerator. Old refrigerators and cheap modern refrigerators are very basic...

December 10, 2025Uncategorized, , , , 0 Comments
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University of Padua students celebrate Arduino’s 20th anniversary with innovative projects

To mark Arduino’s 20th anniversary, the IEEE Student Branch at the University of Padua organized a special competition that challenged students to push the boundaries of what’s possible. The summer-long contest culminated in a presentation on November 19th at the Department of Information Engineering, where three teams showcased projects ranging from gesture-controlled vehicles to environmental monitoring stations and smart swimming sensors.

Inspiring student innovation through hands-on engineering

Professor Matteo Meneghini, advisor of the IEEE Student Branch, explains...

December 9, 2025Uncategorized, , , 0 Comments
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How artist Davide Sgambaro brought “Goosebumps (dark times)” to life with Arduino UNO R4 Minima

At Arduino, we love seeing creative people use technology in unexpected ways – especially when it shows how accessible tools can empower anyone to bring their idea to life. That includes artists, designers, performers, and people who don’t see themselves as “technical” at all. That’s why we’re proud to have supported Davide Sgambaro and his new installation, Goosebumps (dark times), now on view at GAM – Galleria Civica d’Arte Moderna e Contemporanea in Turin, as part of the museum’s...

November 25, 2025Uncategorized, , , , 0 Comments
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Convert a cheap air fryer into a high-performance 3D printer filament dryer

Arduino Team — October 24th, 2025 Post about a 3D printing problem — any 3D printing problem — online and all the top comments will be: “Is your filament dry?” That is a prudent question to ask, because filament that has absorbed moisture will wreak havoc on print quality and can even cause total print failure. If you want to keep your plastic nice and moisture-free on a budget, then check out Milos Rasic’s element14...

October 24, 2025Uncategorized, , , , 0 Comments
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Provision, configure, and deploy, all from your phone

Back in September, we introduced the new provisioning flow on Arduino Cloud, starting with the UNO R4 WiFi. It means that you can now connect and configure your UNO R4 WiFi on Arduino Cloud straight from your phone, with the IoT Remote app. It’s a game changer, making your device setup faster, smoother, and cable-free.But here’s where it gets really exciting: with Arduino Cloud templates, you can now go from powering up a board to...

October 22, 2025Uncategorized, , , , , , 0 Comments
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