Schlagwort: 3dprinter
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A homemade launchpad for compressed air-powered rockets
Reading Time: 2 minutesA conventional model rocket engine is simple combustible solid fuel (black powder or more advanced composites) molded into a cylinder that uses expanding gas to produce thrust. Though it is minimal, there is some danger there. An alternative is compressed gas, which will also expand to produce thrust — just without the…
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This student made his own odds with a DIY slot machine
Reading Time: 2 minutesToday’s digital slot machines are anything but “fair,” in the way that most of us understand that word. There is tight regulation in most places, but the machines can still adjust their odds of payout in order to maintain a specific profit margin. If the machine thinks it has paid out too…
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Forgot your safe combination? This Arduino-controlled autodialer can crack it for you
Reading Time: 2 minutesSafes are designed specifically to be impenetrable — that’s kind of the whole point. That’s great when you need to protect something, but it is a real problem when you forget the combination to your safe or when a safe’s combination becomes lost to history. In such situations, Charles McNall’s safe-cracking autodialer…
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Quickly digitize your Magic deck with this 3D-printable scanning rig
Reading Time: 2 minutesWe call them “deck builders” for a reason: because players end up with huge piles of trading cards. They can get difficult to manage, which is why the ManaBox app exists for Magic: The Gathering. It lets collectors scan and log their decks, which is handy for everything from finding market values to…
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This Arduino Nano Every-controlled machine automatically mixes acrylic paint of any color
Reading Time: 2 minutesWhen you want to paint the walls in your bedroom that very specific shade of Misty Irish Green, all you have to do is head to your local hardware store and have them scan the corresponding card. The paint-mixing machine will then add the pigment to a white base and, a few…
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SeaPerch II introduces students to underwater ROV exploration
Reading Time: 2 minutesWhile professionals around the world take advantage of Arduino products and the extensive ecosystem, the core Arduino philosophy is to simplify complex technology. A bare microcontroller is intimidating to the uninitiated, but an Arduino development board is friendly and approachable. MIT’s Sea Grant is harnessing that in their new SeaPerch II underwater…
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This DIY experimental reactor harnesses the Birkeland-Eyde process
Reading Time: 2 minutesNitrogen is critical for farming at scale and without some form of nitrogen to enrich the soil, we couldn’t grow staple crops efficiently enough to feed our large global population. Serious science goes into the production of fertilizers and the Birkeland-Eyde process was one early example. It uses electrical arcs to turn…
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Arduino Days 2025 is almost here!
Reading Time: 2 minutesWith just a few days to go, Arduino Days 2025 promises to be one of the biggest and most exciting events in our 20-year history! Join us for two days of live-streamed content on March 21st-22nd, featuring inspiring talks, major product announcements, and community showcases from makers, educators, and industry leaders worldwide.…
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A DIY sous vide cooker for making the perfect steak
Reading Time: 2 minutesSous vide (which means “under vacuum” in French) is a cooking technique in which food is sealed in a plastic bag (or another container) and immersed in warm water for a long period of time. It is great for meat, like steak, because it ensures the food is an even temperature throughout.…
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This Arduino device helps ‘split the G’ on a pint of Guinness
Reading Time: 2 minutesGuinness is one of those beers (specifically, a stout) that people take seriously and the Guinness brand has taken full advantage of that in their marketing. They even sell a glass designed specifically for enjoying their flagship creation, which has led to a trend that the company surely appreciates: “splitting the G.”…
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A lightweight file server running entirely on an Arduino Nano ESP32
Reading Time: 2 minutesHome file servers can be very useful for people who work across multiple devices and want easy access to their documents. And there are a lot of DIY build guides out there. But most of them are full-fledged NAS (network-attached storage) devices and they tend to rely on single-board computers. Those take…
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This vending machine draws generative art for just a euro
Reading Time: 2 minutesIf you hear the term “generative art” today, you probably subconsciously add “AI” to the beginning without even thinking about it. But generative art techniques existed long before modern AI came along — they even predate digital computing altogether. Despite that long history, generative art remains interesting as consumers attempt to identify…
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This three-fingered robot hand makes use of serial bus servos
Reading Time: 2 minutesA small startup called K-Scale Labs is in the process of developing an affordable, open-source humanoid robot and Mike Rigsby wanted to build a compatible hand. This three-fingered robot hand is the result, and it makes use of serial bus servos from Waveshare. Most Arduino users are familiar with full-duplex serial communication,…
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Arduino and System Electronics partner for industrial vision and AI-powered inventory and logistics
Reading Time: 3 minutesArduino and System Electronics are joining forces to create cutting-edge solutions for industrial and building automation, focusing specifically on edge computing to deliver real-time processing, predictive analytics, and seamless integration for AI-driven inventory management and logistics. System Electronics – as an “Innovation accelerators for over 50 years” – brings to the table…
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DIY micro lab analyzes ammonia levels in blood and urine
Reading Time: 2 minutesCirrhosis of the liver is an extremely serious condition that requires extensive medical monitoring and often intervention. Progression of the condition can be fatal, so even if caught early it must be monitored closely. But, like most things in medicine, that gets expensive. That’s why Marb built his own DIY “micro lab”…
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The 2024 Arduino Open Source Report is here!
Reading Time: 2 minutesEvery year, we take a moment to reflect on the contributions we made to the open source movement, and the many ways our community has made a huge difference. As we publish the latest Open Source Report, we are proud to say 2024 was another year of remarkable progress and achievements. A year…
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This mod simplifies single-point threading on mini lathes
Reading Time: 2 minutes“Single-point threading” on a lathe is the process of cutting threads, such as for a bolt, into the material through turning. The spindle/workpiece spin and the carriage moves linearly at a precise amount per turn of the spindle. That linear movement is the thread pitch. But this process usually requires several passes…
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This robotic piano has solenoids for all 88 keys
Reading Time: 2 minutesPianos famously have a lot of keys. A standard full-size piano has 52 white keys and 36 black keys, for a total of 88. Therefore, people need to get clever when they build self-playing pianos. However, the brute force approach works, too. Paul Junkin’s brute force strategy was to add a solenoid…
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MKR Keylock is an open-source IoT keypad for your front door
Reading Time: 2 minutesThe age-old combination of physical locks and keys, although reliable, also comes with a few drawbacks, such as when you lose the key or you want to share access with someone else remotely. Davide Gomba has recognized this and built the MKR Keylock project as a way to address some of these shortcomings. Starting with…
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Wired for success: Inspiring the next generation of women in science
Reading Time: 3 minutesDid you know that it’s International Day of Women and Girls in Science on February 11th, 2025? To celebrate this global event, we’re shining a light on the efforts to make STEM more accessible, inclusive, and inspiring for future generations. Let’s dive in! Mind the gap: gender representation in STEM Science and…