While most of us take being able to remotely control a television or other appliance for granted, for the millions of people with some form of disability, this can present a challenge. In order to help those with limited mobility, Cassio Batista along with Erick Campos have come up with a system that translates head movements into infrared (IR) control signals.

In the project’s video seen below, Batista shows off how he can move his head to turn a TV on and off, as well as control channel selection and volume. A webcam captures these gestures, which are passed on to a Linux-based C.H.I.P. board that translates the movements using OpenCV. Finally, an Arduino Uno receives these commands over Bluetooth and signals the TV as needed via IR.

In addition to television, this system could easily be applied to other IR-based appliances, making lives easier, or perhaps simply eliminating a physical remote altogether.

When you’re the best man at a wedding, you could get the groom a nice knife, shaving kit, or some other sentimental and/or useful item. If, however, you’re Imgurian “msx80,” you make a video poker machine with an Arduino!

The game itself is controlled using five switches to hold or change cards, along with a deal and bet button. The play field is shown on a small LCD screen via I2C, which uses custom characters to reveal the different card suits.

Everything is housed in a nicely decorated wooden box, giving it a retro, almost steampunk feel. As you can see from the Imgur photos, it’s certainly a unique display piece and looks like something that would be fun to play. And yes, the groom was happy with the gift as well!

Want to read more, remember to take your vitamins, or even take out the trash? With the “Dory” Arduino-based tracking device from YouTuber YellowRobot.XYZ, now you can!

Dory–which comes in both a circular and smaller square version–uses an NFC reader to sense tags attached near the object that needs work. When you complete a positive action, you simply tap the nearby tag and the small gadget will light up its corresponding LEDs via an Arduino Pro Mini.

If you’d like to know where you are on your habit count, this is displayed with a button in the middle, and can be reset by holding it down. Beside from tracking habits, Dory is a great reminder of what can be done with NFC tags!

Planning on attending Maker Faire New York this month? We’re looking for volunteers to join the Arduino team for the weekend—staffing tables and displays, assisting with one-on-one demos, and providing technical assistance when necessary.

Those who help us out will receive a day pass so you can explore and enjoy everything happening around the faire grounds. Water, snacks, and a t-shirt will be provided, and we’ve even prepared a small gift to show our appreciation at the end of the your shift.

If interested, please fill out this questionnaire and we’ll get back to you soon! We also have a paid position available for a NYC-based photographer, who will be responsible for taking pictures of our booth, Arduino projects, and talks. Sound like you or someone you know? Send us a note at events@arduino.cc! 

You may think that visually sensing colors is a complicated operation, requiring a camera or other advanced sensors. This isn’t always the case, as engineer “Tech Martian” illustrates in the video below, using a photoresistor and RGB LED along with an Arduino 101 board.

His setup uses the LED to shine on a piece of paper in three colors, measuring the reflected light intensity. These reflections are first calibrated by reflecting light off of white and black paper, which can then be combined to show the colors presented in front of the emitter/sensor pair.

Be sure to check out the project write-up for more information, including the Arduino code!

As seen on Make:, Barton Dring wanted to make something interesting to bring to a hardware meetup, along with learning more about the Grbl Arduino machining package. What he came up with was a pair of drawing robots that are both small enough to fit inside of a backpack, and are used to decorate coasters!

The first of these projects, known as “Coasty,” employs a laser to mark, or even cut, square coasters. They are fed in from the side, then pop out again with a new pattern.

The second device uses a much different method, showing off Grbl’s versatility as a polar plotter. Round coasters are placed on a rotating base, and a pen goes around and around until a new doodle is produced.

Be sure to check out both of these machines in action in the videos below!

Blow guns can be very helpful around your workshop, but sometimes you want a subtle shot of air instead of a full blast. There are several ways to take this on, but YouTuber “MBcreates” decided on a novel method using an Arduino Nano for control.

In his setup, a stepper is used to turn a screw as a linear actuator, pushing an intermediate blow gun’s trigger at progressively more aggressive intervals. This effectively regulates the air flow going into the handheld blow gun, allowing for a more subtle burst of air when needed.

Simple is often better. So I grabbed an old blow gun and used this a valve. The Arduino Digital Air Pressure Regulator uses a NEMA 17 stepper motor to press the lever of the blow gun. A micro end switch was placed against the lever. When the Arduino Nano goes through the setup, the stepper hits the end switch, now the program knows the exact position of the stepper.

The video seen here features some very clever build techniques, and it really turned out spectacular, especially considering it was MBcreates’ first Arduino project!

YouTuber “austiwawa,” apparently not satisfied with other methods of causing mayhem in his garage and backyard, has come up with an innovative disc shooter.

His homemade device uses a brushless motor controlled by an Arduino Nano and an ESC to pull a vacuum belt at high speeds. A clear plastic tube on top holds a stack of about 27 3D-printed discs. At the press of a button, they are then fed one by one onto the belt surface by another motor, which accelerates the disc to ejection velocity and out the “muzzle.” There’s also a potentiometer that allows him to adjust the fire rate.

Although it appears to work quite well, destroying items like an apple and eggs, austiwawa notes that this is only a prototype, and plans to make a fully 3D-printed version in the future. At that point, he’ll release the Arduino code and STL files, making it easy for others to duplicate!

Until then, check it out in action below!

We’ve all seen clips of people careening down mountain roads on luges, but if landing on concrete or careening off a cliff doesn’t look like your cup of tea, perhaps something meant for the beach would be more suitable. Taking inspiration from these luges, as well as kite surfing rigs, and even Land Speeders from Star Wars, UK-based maker John Dingley came up with his Electric Beach Luge.

Foot pegs straddling a single go-kart tire in the front are used for steering the vehicle, while power is transferred to the sand by a pair of wheels in the back. A potentiometer is wired into an Arduino Uno for speed input, which uses this information to signal a 500W, 24V golf cart motor via a robot combat controller, capable of producing 160 amps continuously.

You can check out the project page for more info and see it in action in the videos below!

When you, perhaps after being late for an important event one too many times, decide to build a wall clock, there are many DIY options from which to choose. But none may be as massive or unique as the aptly named “Titan Clock.”

To justify this particular design, hacker “ProtheanSoft” lists several of its advantages, such as its large size, energy efficiency (runs on a smartphone charger), thinness (only 18mm thick with casing), and of course, affordability.

The Titan Clock—which can be assembled for less than $50—consists of RGB LEDs, inexpensive craft materials like foamcore board, acrylic and aluminum sheets, as well as recycled components including the diffuser from a broken LCD monitor or TV to generate a uniform glow for each segment. 

ProtheanSoft’s project uses an Arduino Nano for control, along with with a DS3231 RTC module for accurate timekeeping. In this version, the Arduino is programmed to display the time and change color every hour based on a predetermined table.

Interested in creating your own? You can find more details on the build here, as well its code and a wiring diagram on GitHub.