If, for whatever reason, you need your computer to stay awake without changing its settings, that’s easy—just remember to shake your mouse back and forth intermittently! If remembering to do that over and over seems like too much work, then here’s a simple solution: a device setup to optically wiggle your mouse using an Arduino Nano and a micro RC servo.

The 3D-printed unit sits underneath a mouse and rotates a printed grid left and right in order to trick it into thinking that you’re moving the mouse, and thus keeping the computer awake.

Place your mouse on top of the Mouse Wiggler and make sure the optical sensor on top of the wheel. Power the device up use a USB power adapter and you’re good to go.

There’s no software to install, which makes it easy to enable and disable as needed! You can find more details on the build on its Instructables page.

When faced with the need to cut thousands of parts from reels in order to make them into kits, “Der Zerhacker” decided to automate the process.

For his robotic machine, an Arduino Pro Mini pulls strips of tape into position with a stepper motor, coloring them along the way with a marker. An infrared sensor is used to align the correct number of parts with a pair of scissors, which are then cut via a second motor and tumble into a basket.

If you’d like to build your own, 3D print files and Arduino code can be found on Thingiverse. As the author doesn’t have a ton of spare time, wiring and other project details will need to be figured out, but you can get a few clues from the video below…

With Halloween around the corner, hackers are gearing up for festivals and trick-or-treaters, hoping to spook visitors or simply impress others with their automation prowess. DIY bloggers Ash and Eileen are no different, and decided to enter a local scarecrow contest in the “Out of this World” category. Their entry? Moo-Bot, an Arduino-powered sheet metal cow that looks like it came straight off the set of a 1950s sci-fi flick.

Not that that is a bad thing; somehow this retro-futuristic bovine looks quite interesting. Making it even better is that the robotic cow’s eyes are made out of two OLED displays, and that it can interact with observers through an internal speaker.

When someone presses a button on its nose, the onboard Uno powers up and tells a pre-recorded series of cow jokes via an MP3 player module. Power is supplied by eight D batteries, which is enough to keep the Moo-Bot going for a few months.

You can read more about the project here, and see it in action below!

Retrocomputers are fun, but ultimately limited in capability compared to modern hardware. One popular pursuit to rectify this is the connection of early home computers to the Internet. To that end, [que] built the Retromodem for the Commodore 64.

The build starts with a case from an Intel 14.4 modem. A little fast for the Commodore 64 era, but anachronism is charming when done tastefully. Inside is an Arduino with an ethernet module to handle the heavy lifting of carrying packets to the outside world.  [que] took the time to wire up status LEDs for the proper vintage look, which really adds something to the project. They switch on and off to indicate the various settings on the modem – it’s great to see in the video below the break the “HS” LED light up when the baud rate is changed to a higher speed.

The project implements most of the Hayes command set, so you can interface with it over a serial terminal just like it’s 1983. [que] doesn’t go into too many details of how it’s all put together, but for the experienced code warrior it’s a project that could be whipped up in a weekend or two. For a more modern take, perhaps you’d like to hook your C64 up over Wifi instead?

Do jumper wires pulling out of your Uno have you pulling your hair out? Is troubleshooting loose jumpers making you lose your mind?  Are your projects backing up because of all the time you’ve lost keeping jumper wires secure in your Arduino Uno? Then you need the all new Ardunio Strain Relief Enclosure!

[Jeremy Cook] has had it with loose jumpers pulling out of his Uno, so he designed a case that not only secures the Arduino; it also keeps those dastardly jumper wires from pulling out at the most inconvenient times.

Composed of 3/4 inch thick MDF and 1/8 inch thick polycarbonate, the Arduino Strain Relief enclosure is sure to be a hit for every hacker’s work bench. [Jeremy] used a CNC router to cut the enclosure and top. The plastic top is secured to the MDF base via four 4-40 screws. Interestingly – he applied super glue to the screw holes in the MDF before tapping them. We’ll have to try this trick on our next project!

Primary image

This robot is from the book "Computer Controlled Robots for C64, VIC20, Spectrum and BBC", which can be downloaded, along with other books of a similar vintage, from the publisher's website: https://usborne.com/browse-books/features/computer-and-coding-books/

I used to borrow the book from the library as a child, but never actually got to build the robot from the book. Recently, after finding the book online for free, I decided to finally build the robot for myself.

read more

Primary image

This robot is from the book "Computer Controlled Robots for C64, VIC20, Spectrum and BBC", which can be downloaded, along with other books of a similar vintage, from the publisher's website: https://usborne.com/browse-books/features/computer-and-coding-books/

I used to borrow the book from the library as a child, but never actually got to build the robot from the book. Recently, after finding the book online for free, I decided to finally build the robot for myself.

read more

While instruments are available for those with visual impairment to read electronic media, they can be quite expensive, costing over $1,000. This is good for adults, but something more kid-friendly (and possibly replaceable) is needed to open up this world to those just learning.

For this purpose, Jacob Lacourse, whose daughter Rebecca was born with Usher Syndrome, developed the BecDot educational toy.

The device–which is now in a prototype form–senses when a plastic object (a letter block, a plastic animal, etc.) is placed in the reader via preprogrammed NFC tags, then raises the corresponding dots on four Braille pads. The prototype uses an Arduino Uno for control, and a system that he developed to raise the Braille dots as needed.

I incorporated an NFC reader (Adafruit PN532) into the device.  The idea was that the reader would read a preprogrammed tag that a parent, caregiver or educator could place on a toy such as a letter block, a plastic dog, cow, goat, etc. When the child places the toy in the reader the device will display the braille equivalent of the object on the four cells.  Of course lights and sounds would also come later in the development of the device.

Lacourse hopes to one day bring the BecDot to market for under $100. Until then, you can check it out in the video below and read more about this amazing project here!

[Ash] built Moo-Bot, a robot cow scarecrow to enter the competition at a local scarecrow festival. We’re not sure if Moo-bot will win the competition, but it sure is a winning hack for us. [Ash]’s blog is peppered with delightful prose and tons of pictures, making this an easy to build project for anyone with access to basic carpentry and electronics tools. One of the festival’s theme was “Out of this World” for space and sci-fi scarecrows. When [Ash] heard his 3-year old son sing “hey diddle diddle, the cat and the fiddle…”, he immediately thought of building a cow jumping over the moon scarecrow. And since he had not seen any interactive scarecrows at earlier festivals, he decided to give his jumping cow a lively character.

Construction of the Moo-Bot is broken up in to three parts. The skeleton is built from lumber slabs and planks. The insides are then gutted with all of the electronics. Finally, the whole cow is skinned using sheet metal and finished off with greebles to add detailing such as ears, legs, spots and nostrils. And since it is installed in the open, its skin also doubles up to help Moo-bot stay dry on the insides when it rains. To make Moo-Bot easy to transport from barn to launchpad, it’s broken up in to three modules — the body, the head and the mounting post with the moon.

Moo-Bot has an Arduino brain which wakes up when the push button on its mouth is pressed. Its two OLED screen eyes open up, and the MP3 player sends bovine sounding audio clips to a large sound box. The Arduino also triggers some lights around the Moon. Juice for running the whole show comes from a bank of eight, large type “D” cells wired to provide 6 V — enough to keep Moo-Bot fed for at least a couple of months.

Check out the video after the break to hear Moo-bot tell some cow jokes – it’s pretty funny. We’re rooting for it to win the competition — Go Moo-bot.

If you’re hungry for more scarecrows, this isn’t the first we’ve seen.

Who owns Arduino? We don’t mean metaphorically — we’d say that’s the community of users and developers who’ve all contributed to this amazing hardware/software ecosystem. We mean literally. Whose chips are on the table? Whose money talks? It looks like it could be ARM!

The Arduino vs Arduino saga “ended” just under a year ago with an out-of-court settlement that created a private holding company part-owned by both parties in the prior dispute over the trademark. And then, [Banzi] and the original founders bought out [Musto]’s shares and took over. That much is known fact.

The murky thing about privately held companies and out-of-court settlements is that all of the details remain private, so we can only guess from outside. We can speculate, however, that buying out half of the Arduino AG wasn’t cheap, and that even pooling all of their resources together, the original founders just didn’t have the scratch to buy [Musto] out. Or as the Arduino website puts it, “In order to make [t]his a reality, we needed a partner that would provide us with the resources to regain full ownership of Arduino as a company… and Arm graciously agreed to support us to complete the operation.” That, and the rest of the Arduino blog post, sure looks like ARM provided some funds to buy back Arduino.

We reached out to [Massimo Banzi] for clarification and he replied:

“Hi arm did not buy nor invest in arduino. The founders + Fabio Violante still own the company. As I wrote in the blog post we are still independent, open source and cross platform.”

We frankly can’t make sense of these conflicting statements, at least regarding whether ARM did or didn’t contribute monetary resources to the deal. ARM has no press release on the deal as we write this.

Announcing a partnership without details isn’t a new activity for Arduino. Recently we wrote about open questions on the Arduino Foundation. [Banzi] was willing to speak with Hackaday at length about that topic, suggesting more details were just weeks away but we have yet to see follow-through on that.

What we can tell is that [Banzi] and Arduino want us to know that they’re still independent. The Arduino post mentions independence and autonomy eight times in a 428-word post. (The lady doth protest too much?) They’re very concerned that we don’t think that they’ve been snapped up by ARM.

And there’s also good reason to believe that Arduino will remain autonomous even if ARM owns a big stake. ARM sells its intellectual property to a number of silicon manufacturers, who then compete fiercely by offering different peripheral sets and power budgets, and they’re very serious about providing them all with a level playing field.

Anyway, the various ARM chips are nice to work with from a hacker perspective. If the AVR-based UNO was the last non-ARM Arduino board ever made, we’d only shed a tiny little tear. On the other hand, if you’re an MSP430 or PIC fanboy or fangirl, we wouldn’t be holding your breath for a light-blue board sporting your favorite silicon but that is just conjecture.

So we have seemingly conflicting information on the details of this deal, but also promises of openness and transparency. On one hand we’re pleased that ARM is the apparent silent partner, but on the other hand we’re left confused and wanting more. Who owns Arduino?