Tag Archives: Arduino MEGA

Building an ATmega1284P prototyping board

For his latest vintage CPU/MCU mashup, Maker Dave Cheney recently decided to replace an Arduino Mega board with a bare megaAVR microcontroller to create a two chip solution — just the Atmel and the 6502, no glue logic or external support chips.

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“While toying around with the project, [Cheney] found the microcontroller he was using, the ATMega1284P, was actually pretty cool. It has eight times the RAM as the ever-popular 328P, and twice as much RAM as the ATMega2560P found in the Arduino Mega,” Hackaday’s Brian Benchoff writes.

The minimal design was laid out in Fritzing along with a crystal, load capacitors, an ISP connector, and pins for a serial connector. “The trickiest piece was fitting the crystal and load capacitors into the design without disrupting to many of the other traces. It worked out well so I decided to add ICSP and FTDI headers,” Cheney notes.

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Since the ATmega1284P MCUs that he ordered were unprogrammed, all the bootloading was done through Manicbug’s Mighty1284 Arduino Support Package. Though the package only supported Arduino 1.0, the Maker still had a nifty little prototyping board on hand.

“I’m smitten with the ‘1284P. It feels like the right compromise between the pin starved ‘328 and the unfriendly ‘2540 series. The 1284P supports more SRAM than either of its counterparts and ships in a package large enough that you get a full 24 pins of I/O.”

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Interested in learning more about Cheney’s build? You can get a detailed breakdown of the prototyping board here.

This electronic mystery box is full of puzzles

What’s better than the build up of anticipation and excitement before unboxing a present? Originally conceived as a birthday gift, Maker Raffael Herrmann has devised an electronic puzzle box that will take a little longer than usual to open. Though the Captain Herrmano Mystery Box contains an actual present inside, the recipient must first go through a series of puzzles. Beat that, wrapping paper!

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“The box is a so-called ‘reverse geocaching puzzle.’ The inspiration for this project was a reverse geocaching box built in 2009 by Mikael Hart. Unlike Mikael’s version of the box, it’s not enough to simply find and visit the target place. To unlock the treasure of Captain Herrmano, the player has to solve more tasks,” Herrmann writes.

The length of the gameplay is contingent upon how quickly the gift recipient, or player, solves the riddles. Theoretically, one could finish it within an hour or two.

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Inside its trunk-like housing, the project is controlled by an Arduino Mega (ATmega1280) and hooked up to several components, including a temperature sensor, a GPS receiver, a carbon monoxide sensor, an ultrasonic sensor, a speaker, a display, a mini-SD card, and a servo. The box also is equipped with a numeric keypad and an LCD screen for user input and output.

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Why a GPS unit or CO sensor? Some of the puzzles require outside interaction in order to advance to the next level, such as blowing tobacco smoke into a tube, carrying the box several meters above sea level and even grabbing a telephone. Others, however, simply command players to enter answers to numeric problems and sending emails with the word “secret.” You can watch it all in action below!

Tired of someone opening your presents too quickly? Not a huge fan of wrapping paper? You’ll want to read about the Maker’s entire build here.

This robotic workbench is powered by an ATmega1280

Looking to channel your inner Bob Vila? Then, you will surely enjoy this fully-automated workbench created by “Dirk the Eingineer.” First brought to our attention by MAKE: Magazine, the project will make for a welcomed (robotic) addition to any garage or shed.

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Let’s face it: The basic design of workbenches really haven’t changed much over the last hundred-somewhat years, so Dirk’s recent innovation certainly has some mainstream appeal. Comprised of baltic birch plywood, maple, and walnut, the beautifully-constructed bench consists of eight torsion boxes — four on the base, three on the “elevator car” and one under the maple skin of the table– — each of which were cut using his homemade CNC machine. As the Maker points out, the table is finished with linseed oil, making it super easy to clean and repair.

Unlike those of today (and yesterday), the bench is driven by an Arduino Mega (ATmega1280) which enables the workpiece to move up and down in Transformers-like fashion. The Maker also hopes to expand upon its current capabilities, ranging from measuring the distance of the bench to the floor and boasting an interactive display.

At the moment, the bench simply functions with a remote that he purchased from our friends at SparkFun, which interfaces with the Arduino. According to Dirk, the remote is a “simple one to one relay” that sets pins high when the button is pushed. The Arduino reads and transmits those direction signals to a stepper motor driver, which is linked to sprockets and a roller chain.

Think your workspace could use an AVR based bench like this? You can read all about Dirk’s build here. Meanwhile, watch it in action below!

Sort through M&M’s in speed with this iPhone-controlled machine

While we’ve seen plenty of candy-sorting machines in recent months, an anonymous reviewmylife blogger has devised a pretty sweet creation that’ll have you sifting through treats faster than ever before. Not only for the everyday chocolate lover, this contraption can be quite useful for concert venues looking to book Van Halen or Mariah Carey, whose rider requests demand no brown and yellow M&M’s, respectively, in their backstage candy bowls.

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The Maker claims that the DIY device is faster than most other sorters, which works by registering the candy’s’ color using an iPhone 5 camera. The high-speed M&M machine is equipped with a 12V 80RPM high torque motor that controls a rotating plate, before releasing one candy at a time through a hole.

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As the M&M falls, the iPhone deciphers its color and communicates via Bluetooth to an Arduino Mega (ATmega1280). The Arduino then uses an eight-channel relay to fire off electromagnet-controlled gates that send the candy piece down a chute and into the appropriate bin.

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Although much quicker than other DIY M&M sorting projects, the blogger notes that there is still plenty of work to do. As good as the iPhone’s color sensing capabilities may be, the device still has trouble deciphering brown candies. “They are a pain to distinguish from orange and shadow. Obviously it can be done but it would need a bit more software work and perhaps some LED lighting on the chute to reduce the effect of the shadows,” he added. The Maker also says that he’d like to get the parts for the machine 3D-printed in the near future.

Pretty sweet, right? See it in action below!

Intrigued? You can read all about the project on its official page here. Meanwhile, you can satisfy your sweet tooth with a number of some other Atmel powered candy contraptions here.

Rewind: Some abstract and awesome Arduino projects from 2014

Atmel powers Arduino. Arduino enables Maker. Maker inspires the world. While there are countless creations all over the web, we’ve compiled just a few of the most dynamic and different ‘duino projects from the past 12 months. Feel free to share some of your favorites as well!

Right on pointé

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Designed by Lesia Trubat, Electronic Traces (E-Traces for short) are a pair of embedded pointé shoes which allow ballerinas to recreate their movements into visual sensations using an accompanying mobile app.


Chameleon-like jacket

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Designed by Oslo, Norway design firm Drap go Design, the Interacket is an ATmega328 powered jacket that lets a wearer interact with the objects around them by mimicking their color.


Click your heels three times and call an Uber ride

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Designed by Maker DJ Saul, Dorothy is a physical trigger that can turn a dumb ol’ shoe smart. Adhering to the “if this, then that” principle, the Ruby is an Arduino-based device equipped with a Bluetooth chip, accelerometer and coin cell battery, while its housing is 3D-printed. The small gadget can be either slipped into or clipped onto any piece of footwear and connected to a smartphone app that will automatically call a cab or send a message.


This talking fridge can sell itself

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Earlier this year in an attempt to provide shoppers with a less intrusive experience, Samsung equipped a number of its refrigerators with Arduino units that were capable of detecting customers and speaking to them in real-time. Whenever movement was sensed by any of the fridge’s interior compartments, the Arduino sensors activated a voice playback and explained the appliance’s features and benefits to the prospective buyer.


When ‘duino found Nemo

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Dutch design group Studio Diip modded an existing tank with wheels and sensors that would allow its inhabitant to operate the vehicle by swimming in a specific direction. The project, dubbed Fish on Wheels, is an attempt to “liberate fish all over the world.”


Color-changing fabrics react to heat and sound

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Judit Eszter Karpati, a Budapest-based textile designer, wanted to further blur the fading boundaries between the digital realm and physical world. To do so, the Maker created an e-textile that alters its patterns based on its surroundings, which is made possible by an Arduino board, a 12V power supply and nearly 20 custom PCBs. These components control four industrial 24V DC power supplies that are responsible for heating the two moving textile displays — each of which are woven with nichrome wires, screenprinted with thermochromatic dye, and pre-programmed with Karpati’s patterns.


An interactive fabric you’ll want to touch

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Developed by Esteban de la Torre and Judit Eszter Karpati, OCHO TONOS is an audible textile interface for multi-sensorial interaction, involving both touch and sound. According to its creators, the objective of the project was to create a soundscape through sensor technology inviting audiophiles to perform and explore with reactive textile elements. In order to accomplish this feat, EJTech employed an Arduino Mega ADK (ATmega2560).


Re-imagining the radio interface

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Audio broadcasting radios have been around since the 1920s. In fact, their control interface share many similarities — knobs, sliders and switches — with those designed by our ancestors nearly 100 years ago. Now, what if we could re-imagine the entire radio control experience to create a more meaningful relationship between the user and the artifact? Seeking to do just that, Carnegie Mellon University design student Yaakov Lyubetsky has developed a fully-functional prototype of his latest The Experimental Form Radio using an Arduino Uno (ATmega328).


Wake up and smell the coffee

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For a majority of us, mornings just aren’t complete without your daily cup ‘o joe. Now, what if your instant coffee literally woke you up? Earlier this year, Nestlé teamed with Mexcio City-based agency Publicis Mexico and Los Angeles studio NOTlabs to debut the Alarm Cap — a limited-edition, 3D-printed lid powered by an Arduino. The unique design is comprised of seven distinct alarm sounds, including a bird song, that are played in tandem with a gently pulsing light. To switch off the alarm, the user opens the lid and is greeted with the invigorating smell of Nescafé coffee.


This washing machine orders detergent when you’re out

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Cloudwash — designed by the folks at Berg — is a prototype washing machine (based on a standard Zanussi model) connected to a web platform. The team created the futuristic device to explore how the ever-growing Internet of Things would change the appliances most commonly found in our homes, and to discover what new, innovative features would be made possible. With the smart machine, users would be able to remotely program wash loads and even purchase detergent, for instance, all through the touch of a button using its simple companion mobile app. In order to make this a reality, the team modded a Zanussi and intercepted both its connection and system controls by inserting an Arduino Mega (ATmega1280). This would then enable the megaAVR based board to read and write the serial data that was passing to and fro.


A purse that’ll keep you from overspending

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Using an ATmega32U4 MCU based FLORA and a real-time clock, the iBag was designed to physically deter shoppers from accessing their credit cards during their most vulnerable moments. The purse is also equipped with an Adafruit FLORA GPS and LED lights that flash when a shopper gets a bit too close to their favorite stores, or as the company puts it, “danger spending zones.” RFID modules record every swipe of a shopper’s wallet leaving the bag and a GSM module can also send text messages to a responsible other, such as a husband, wife, or parent.


A floating orb captures and replays ambient noise

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The brainchild of designers Francesco Tacchini, Julinka Ebhardt and Will Yates-Johnson, 

Space Replay is a giant ball that constantly records and replays the sounds of public spaces, creating a delayed echo of human activity. To make the floating orb, the Maker trio used a latex balloon filled with enough helium to be able to lift a battery-powered, an Arduino board, an Adafruit Wave Shield and a small speaker.


Samsung is making your bike smarter

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Designed by Italian frame-builder Giovanni Pelizzoli and student Alice Biotti, the Samsung Smart Bike is built around an aluminum frame that boasts curved tubes to soak up vibrations from riding on rough city streets. The frame is also equipped with a battery, an Arduino board, as well as WiFi and Bluetooth modules. Meanwhile, a rearview camera is located between the seat stays of the frame to stream live video feeds to a handlebar-mounted Samsung smartphone.


Designing your own pair of Google Glass

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13-year-old Clay Haight recently designed something not many kids would have even imagined: a Google Glass-inspired, intelligent pair of glasses. The young Maker used the sensors on the Arduino Esplora (ATmega32U4) and an Arduino LCD screen, before piecing it all together on a 3D-printed frame.


This robot wants to add AI to everyday household objects

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Sure, robotic concepts are dime a dozen these days. The question is, however, how close are we to an era of ubiquitous multi-function droids? According to Flower Robotics, soon. The company is envisioning a future where everyday household items, such as lamps and plants, come to life and move freely about our homes. In an effort to lower the barriers for development and adoption of in-house robots, the Tokyo-based design studio recently launched its futuristic device, Patin. Need an extra hand to carry your groceries? A little more light? A reminder to water your plants? To turn up the tunes? Each of these tasks (and more) can be accomplished by the open-source, Arduino-based bot.


Saying ‘I Love You’ with the IoT

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Israeli design student Daniel Sher has developed a trilogy of creations that can transmit silent gestures between loved ones. Using an Arduino for all three devices, the Maker utilized the Internet of Things to establish a new way for loved ones to communicate from afar. With the Atmel based board, the Maker incorporated a series of sensors and wires that allowed various physical traits to be measured and relayed across long distances.


Free beer for your timesheet 

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Let’s face it, no one enjoys filling out timesheets — yet they are imperative in order to get paid. That’s why Minneapolis ad agency Colle + McVoy has devised a new way to not only get employees to fill out their time cards, but to reward them with some draft beer. Dubbed TapServer, the multi-keg beer deployment system combines RFID tags and some custom-written software to seamlessly sync with the agency’s time-keeping application. On the hardware side, the program is comprised of several Arduino Uno (ATmega328) boards, a Node-based server, solenoids and a Raspberry Pi.


TinyScreen is a thumb-sized color display

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With much of the tech community is abuzz about larger screen sizes, the TinyScreen is here to show customers just how adaptable a miniscule display can be in a world overrun by massive screens. The screen itself is only 1.02″ x 0.98″, with a 0.96” viewable area that features 96×64 OLED display and 16-bit color depth. Powered by an ATmega328P, the device is built to be customized and programmed by the clever user base, both novice and expert. The team champions its one-click ability to download new programs and run them with little interuption. Even better, the TinyScreen comes with some incredibly useful programs, such as a clock display, already loaded onto the unit out of the box.


A modern-day message in a bottle

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Created by ECAL graduate David Colombini, Attachment is an ATmega1280 powered poetic machine that enables you to send text, images or videos into the air using a biodegradable balloon with the intention of “rediscovering expectation, the random, and the unexpected” uncommonly found in current means of communication.


A hackable, Wi-Fi-enabled GIF camera

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Oakland-based creative lab Next Thing Co. debuted the OTTO, a smartphone-enabled GIF-making camera that allows users to create GIFs one frame at a time, add image effects, and instantly share their creations on the web. OTTO lets users take photos with a real camera, while still being able to easily share them with their friends, family and other favorite people. Photos taken with OTTO are viewed and shared from your smartphone. By attaching an Arduino-powered FlashyFlash to the USB port hidden under the OTTO logo plug, you can easily add electronics to completely change how OTTO works.


Backpack destroys personal data 

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The backpack — which was originally designed as an Art Center College of Design project — intercepts data that’s about to go to the cloud and ‘vaporizes’ it at the same time, creating both a real and symbolic shield. The backpack includes an ‘inhaler’ device that attaches to your hand and triggers it either when someone gets too close to the inhaler’s proximity sensor or when you breathe into it. An Arduino board then tells a valve inside the backpack to rotate hot water and dry ice and starts a fan that pushes the vapor out. The backpack can be used both to obscure your own data or destroy the data of those around you.


Taste the music on the radio

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Can music be translated from something we hear into something we can taste? A group of students believed so, and decided to find out. Beatballs is a project created by 54 students from the Interactive Art Director program at Hyper Island in Stockholm who developed a code that translates specific songs into different meatball recipes based on tempo, cadence, mood, key, and other tuneful attributes. The team also devised a prototype of a machine made with Arduino and recycled objects.


Turning air pollution into art

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Media artist Dmitry Morozov — more commonly known as ::vtol:: — recently found a way to turn offensive pollution into enticing art through a portable, Bluetooth-connected device entitled Digioxide. In an attempt to raise public awareness of the environmental pollution by artistic means, the Maker’s wireless creation uses a set of sensors to measure the presence of gases such as carbon monoxide, carbon dioxide, methane, and even dust in the air, which are translated into volts. An Arduino algorithmically then converts those volts into the shapes and colors you see below. The interactive project utilizes an Arduino Nano (ATmega328), HC-06 Bluetooth module, gas and dust sensors, as well as an LG mobile printer.


Lamp changes color with your mood

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The Mood Lamp is an Arduino-based project created by Italian developer Vittorio Cuculo. As the name suggests, the hacked IKEA lamp adjusts its lighting output based on the facial expression of a user.


A shape-shifting, morphing table

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Dubbed inFORM, the table is equipped with 900 individually actuated white polystyrene pins that make up the surface in an array of 30 x 30 pixels. The interactive table can display 3D information in real-time and in a more accurate and interactive manner compared to the flat rendering often created by computer user interface. An overhead projector provides visual guidance of the system, with each pin capable of actuating 100mm and exerting a force of up to 1.08 Newtons each. Actuation is achieved via push-pull rods that are utilized to maximize the dense pin arrangement — making the display independent of the size of the actuators. The actuation is achieved by motorized six  slide potentiometers mounted on a custom-designed PBC, driven by an ATmega2560 and TB6612FNGCT-ND motor drivers.


A kinetic-audio installation

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In collaboration with FutureEverything and Moscow’s Laboratoria Art & Science Space, media artist Dmitry Morozov has designed a kinetic audio installation that creates quantum entanglement-inspired sounds. The artwork is comprised of six rotating acrylic discs, each equipped with spinning speakers and microphones. The microphones are connected via computer and the rotary axis to the speakers on the discs. In addition, the installation features an Arduino and a Geiger-Mueller counter that detects the ionizing radiation in the surrounding area. The synchronizing phases of the spinning hardware produces feedback, generating sound when the rotational phases are in sync. These sounds are then processed through digital signal processors, which results in the variations experienced by the viewer.


Putting a unique spin on political debates

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This interactive installation by Maker Georgios Cherouvim features a real-life demonstration of a vocal debate between two characters. Instead of a productive dialogue promoting their ideas on a range of issues from voting and local government to war and taxes, the “politicians” share a constant yet indecipherable argument with one another, causing the viewers to lose interest in the conversation and politics all together. A rather noticeable dissimilarity between the installation, which is aptly named Debate, and an actual politician showdown is that the figures are actually plastic mannequins. Each character is an autonomous and independent unit, powered by a combination of custom electronics and a conversation-simulating program along with an Arduino Uno (ATmega328).


This wireless iPhone charger is a work of art 

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Developed as part of a diploma project by a University of Contemporary Design and Applied Arts (ECAL) student, Spira is a magnetic docking station that wirelessly restores power to an iPhone while turning the device into a decorative wall clock. Described by its creator Alica Robbiani as an interactive picture, charger and clock, Spira was built around an Arduino board and the principle of inductive charging. Utilizing a blend of wood, metal and plastic, the Maker sought to devise an ambient frame that would enable a magnetized iPhone case to hang decoratively on the wall thereby giving it a “place of honor in the home atmosphere.”


Etching graffiti for those in the distant future

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As we look into the future, have you ever considered how you might communicate with your distant offspring — say 50,000 years from now? Well, German artist Lorenz Potthast has. The Maker has created what he calls a “positive vandalism machine,” for communicating with next generations. The Petroglyphomat is a portable, computer-operated milling cutter that can pass along messages by etching them into ancient monuments.


Long exposure photos reveal invisible motions in sports

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Canadian photographer Stephen Orlando has introduced a new way to visualize action sports through the use of LED lights and an Arduino. The technique reveals beautiful light trails, which are not artificially created using applications like Photopshop, and represents the actual paths of familiar objects. Orlando’s long exposure photos turn repetitive, invisible motions seen in outdoor activities such as kayaking, canoeing, tennis, swimming and soccer into enchanted braids of light. Each sport requires the photographer to fine-tune his technique. Orlando’s images use programmable strips of blinking LED lights that are capable of changing colors over time. A custom Arduino-based rig enables him to not only program the color and pattern of the LEDs, but accentuate the movements of whatever activity is being captured. In an exposure of 20 or 30 seconds, for instance, the kayak becomes invisible, yet the trail of light left behind as the kayakers paddle gets picked up and transformed into a vibrant light show.


This lamp mimics thunderstorms

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Richard Clarkson has created Cloud, an interactive lamp and speaker system out of an Arduino, fluffy cotton and cloth cord. According to the designer, the Cloud acts as both a semi-immersive lightning experience — or as a speaker with visual feedback — to mimic a thunderstorm in both appearance and entertainment. The outer fluff is fastened to a styrofoam core that’s embedded with the Arduino, LED lights, a motion detector and other electrical inputs.


Gaming system draws actual blood every time your character bleeds

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It’s no secret that today’s video games are inching closer to bridging the gap between our digital and physical worlds? But, one Maker project may have taken that concept to an entirely new level. What if, when you were injured and lost blood in a game, you lost blood in real life as well? While the premise may sound completely horrific and downright absurd, a pair of former digital advertising creatives are hoping that their latest project, aptly dubbed Blood Sport, will make donating blood more enjoyable. The technology behind Blood Sport is relatively simple. Using a modified game controller, an Arduino and a sharp needle, a player is hooked up to a blood collection system (like the ones typically used during blood drives). A wire is connected from the controller’s “rumble pack” to the blood collection machine via the ATmega328 based board. That way, every time a player’s character is injured and loses blood in the game, the connected controller vibrates and the collection system withdraws blood.


Experiencing the Northern Lights with Arduino

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Many travelers consider the Northern Lights to be a mysterious phenomenon that is nearly impossible to explain to someone unless they have experienced it as well. French graphic designer Bertrand Lanthiez wished to bring that indescribable occurrence to the masses. The Maker traveled to Northern Europe to find inspiration for this illuminating project. He recorded the sights, sounds and happenings throughout his journey. In turn, he created an art installment that would demonstrate the sounds, emotions and visuals that his trip instilled within him. The installation itself focuses on a flat surface sewn with conductive thread, which reveals map of Bertrand’s Northern European trip. Each thread is attached to an Arduino, which scans the touches of the user in real-time. The installation then responds with a series of colors and sounds that recreate the artist’s trek.


Brightening the Japanese waterfront with wind-powered lights

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GwaGwa — a creative duo comprised of Makers Masamichi and Kozue Shimada — is known for a number of their innovative installation, hand drawing and stop motion animations. Most recently, the team was commissioned by Smart Illumination Yokohama 2014 to design “Colors of the Wind Way” along the Japanese city’s waterfront. To bring this vibrant idea to life, GwaGwa apportioned 50 wind-powered lighting devices in a grid across the breakwater, which runs approximately 100m (328 ft) in Yokohama Bay. Each device was embedded with a sensor, a wind power generator, a full-color LED and an ATmega328P MCU, each of which were controlled by an Arduino-based program to visualize the paths. Meanwhile, a stepper motor was installed for the generator unit.


This talking foundation wants you to drink more H2O

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The Drink Up Fountain — recently created by YesYesNo Interactive Studio in collaboration withPartnership for a Healthier America — dispenses entertaining greetings intended to encourage everyone to drink more water more often. While the Drink Up device may look like a regular fountain, it sure doesn’t sound like one. When a drinker’s lips touch the water, the Arduino Mega (ATmega1280) powered fountain utters phrases like “Refreshing, isn’t it” and “Your feeding one trillion thirsty cells right now,” thereby completing a circuit and activating its built-in speakers. Once the drinker pulls his or her head away from the water, the circuit breaks and the fountain stops talking.


Drawing on glow-in-the-dark surfaces with lasers

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An Instructables user named “ril3y” has devised a slick CNC single point projector that can draw on glow-in-the-dark surfaces with lasers, aptly named Laser Glow Writer. The gadget is driven by Arduino Due (Atmel | SMART SAM3X8E), which runs the TinyG CNC motion controller firmware. The SAM3X8E based board then controls the two stepper motors (X and Y axes) in a coordinated fashion, while turning the small laser on/off. Currently, ril3y is converting SVG images to Gcode, and putting them up on some glow-in-the-dark vinyl.


Wearing your Wi-Fi signal

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Whereas a vast majority of us are in search of Wi-Fi signals on a regular basis, not many have been on a quest to visualize the networks that keep us connected in order to gain a better understanding of these wireless systems. In an attempt to do just that, architect Luis Hernan created a psychedelic Kirlian Device capable of picking up on Wi-Fi signals and translating them into colored lights. Built around an Arduino and LED lights, the device was tasked with translating Wi-Fi networks into colors — red indicating the strongest signal and blue, the weakest.


A night at the museum — with robots

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For several nights back in August, four robots roamed around London’s Tate Britain, each streaming video to the masses. If it wasn’t cool enough to have bots navigate a museum in the dark, it got even cooler as people from all around the world were able to control their movements right from their computers. Built in collaboration with RAL Space, the nocturnal tour guides each featured an on-board Wi-Fi receiver, an Arduino, a Raspberry Pi unit, lights, sensors, a powerful electric motor, and of course, video streaming technology. The units maneuvered around the grounds using a sonar sensor and a custom 3D-printed enclosure.


 Humanoid robot drives its own car

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Aldebaran Robotics teamed up with RobotsLab to unveil a NAO robot that was able to autonomously drive a miniature BMW Z4. The vehicle was equipped with an integrated laser range finder linked to an onboard ‘duino, which was responsible for analyzing its surroundings and then relaying steering inputs to the NAO unit in the driver’s seat. In addition, the robot boasted a two-camera computer vision system, a sonar distance sensor, two infrared emitters and receivers, nine tactile and eight pressure sensors.

Fixing a 3-zone reflow oven with ATmega1280

Ed from over at ESTechnical owns a three-zone reflow oven. While the device had performed well for several years, like with anything, age took a toll on its belt speed and temperature control displays. Unfortunately, the speed became so inconsistent that most boards running through the conveyer weren’t completed reflowed. Meanwhile, the LCD displays were on their way out as well. Worst of all, the belt speed appeared to be varying with temperature. Since not a whole heck of a lot was wrong with the oven mechanically, in true DIY fashion, Ed decided to tinker around a bit to keep it functioning.

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In doing so, Ed elected to remove the oven’s inner workings and swapping it out with an Arduino Mega (ATmega1280), thereby solving the belt problem and replacing the oven’s existing interface.

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When Ed began looking into his belt speed problem, he discovered that the belt motor was controlled by an adjustable linear regulator and was completely open loop.

“I assume that as the temperature was increasing, so was the output voltage (some sort of power dissipation limiting in the IC?). I removed the conveyor belt drive motor and powered it up on the bench with a variable power supply. It didn’t sound good running with no load, lots of chattering of the shaft wobbling in loose bushings,” he writes.

After realizing that closed-loop speed control would really help make the oven more consistent, Ed decided to overhaul all of the electronics in the oven.

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“To make the closed loop control possible, clearly a microcontroller needed to be involved in the new controller. I considered making a one off PCB for the oven, but rapidly settled on the idea of making as much use as possible of ready made prototyping stuff that’s widely available online. The Arduino Motor Shields seemed like a great time saver, and I found a range of screw terminal breakout boards with prototyping space for the Arduino family of boards.”

Upon determining that the new controller would be based on an MCU, Ed went on to substitute the temperature control and all of the functions of the oven with the ATmega1280 based board. The Maker also selected a breakout board for the Mega, a motor shield and a 4-input MAX31855 breakout board.

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Upon completion, the Arduino now controls the belt speed and runs PID loops which drives the heating elements in each of the oven’s three zones. In addition, the ‘duino can be programmed with different profiles, stored in EEPROM, which are made up of three-zone temperatures and a conveyor speed.

Interested in learning more? You can access Ed’s detailed breakdown of the build here, as well as check out a writeup from our friends over at Hackaday here

Converting solar radiation into sound, light and electric discharges

Remember as a kid being warned by your parents not to look directly at the sun? A perfect combination of caution and curiosity, Dmitry Morozov — more commonly known as ::vtol:: — recently unveiled his latest interactive installation called undlarman at the Polytech Museum in Moscow. The project, which was a collaboration with Julia Borovaya and Edward Rakhmanov, utilizes 64 ultra-bright LEDs, 12-channel sound system and eight-electrical nerve stimulation electrodes controlled by Arduino Mega (ATmega2560).

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The exhibit features an 8 x 8 LED grid that flashes and flickers according to information from a satellite observing the sun.

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“Data on power of X-radiation flux from the sun is received in real-time from the satellite GOES15 which is tracking solar activity. It is being converted into streams of sound, light and electric discharges, thus allowing a spectator to experience in more intensive and evident way the influence of the main luminary of the solar system,” Morozov writes.

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“The data, which is measured in watts per square meter, come with a frequency of once per minute. A special computer algorithm transforms it in sound waves, distributed by 12 channels in the space. The radiation power directly controls the height of tones and spectral changes in the sound. The speed of sound displacement in the space is also dependent on these parameters. Light is generated by algorithmic transformation of X-ray emission into physical modeling of light particles, which also affect the muscle stimulators in the chair to produce weak electric discharges.”

Those intrigued by Morozov’s latest installation will surely enjoy several of his earlier ATmega328 powered pieces, including a wearable machine that turns tattoos into tunesa Russian folk bot electronic-acoustic orchestra, or even air pollution-inspired art.

This talking fountain wants you to drink more H2O

The Drink Up Fountain — recently created by YesYesNo Interactive Studio in collaboration with Partnership for a Healthier America — dispenses entertaining greetings intended to encourage everyone to drink more water more often. While the Drink Up device may look like a regular fountain, it sure doesn’t sound like one.

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When a drinker’s lips touch the water, the Arduino Mega (ATmega1280) powered fountain utters phrases like “Refreshing, isn’t it” and “Your feeding one trillion thirsty cells right now,” thereby completing a circuit and activating its built-in speakers. Once the drinker pulls his or her head away from the water, the circuit breaks and the fountain stops talking.

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“Water is often taken for granted,” explained Drew Nannis, Partnership for America CMO. “The Drink Up Fountain is yet another effort to remind people that you are what you drink, and when you drink water you Drink Up.”

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While there are currently only two talking fountains that will be moved around to various events and cities throughout the U.S., the goal is to make more fountains permanent fixtures in time. Drink Up recently set up a number of hidden cameras to catch unsuspecting individuals using the Atmel based fountain in New York City’s Brooklyn Bridge Park.

Celebrating Pong’s anniversary Maker style

November 29, 1972: A day that will forever hold a place in the heart of all video gamers. It was the day in which Atari Corporation announced Pong, one of the first video games to reach mainstream popularity in both homes and arcades everywhere. In the simulated table tennis game, players were represented by paddles that could move up and down to try to deflect a ball, all while keeping it from passing into their goal. Despite its simplistic two-dimensional graphics, Pong started a craze. A craze that still exists today.

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And, what better way to honor the iconic game originally designed by Nolan Bushnell and Ted Dabney than with a set of Pong-inspired, Atmel powered Maker projects?

While it may be 2014 and Pong obviously pales in comparison to games like Crysis or CoD, some of us are clearly more prone to nostalgia than others, including James Bruce of MakeUseOf, who recently penned a detailed guide on how to recreate the retro console using an Arduino board.

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“I won’t lie – it’s unlikely your daughter will be giving up her Nintendo DS, and this isn’t going to provide hours of fun for the whole family – but it is an awesome and easy project to improve your Arduino coding,” Bruce writes.

Essential ingredients for this retro masterpiece?

  • 470 ohm resistor x1
  • 1k ohm resistor x1
  • 10k ohm Potentiometer (twiddly variable resistor) x2
  • Arduino x1 (any version)
  • RCA plug x1 (if you have more than one, you can hook up sound too. One for the video is a bare minimum)
  • Pushbutton switch x1
  • 10k ohm resistor x1

Oh, and yes, you’ll also have to download the TV Out Arduino library (TVoutBeta1.zip), subsequently placing all resulting folders in your /arduino/libraries directory.

Now, this project probably isn’t for the faint-hearted, as you will definitely need to break out the soldering gun for the 470 ohm and 1k ohm resistors – which are to be soldered to the center signal line of an RCA plug.

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Meanwhile, others even wear their love for the game on their sleeve — or the front of their shirt at least. A young Maker by the name of Spencer recently shared an Instructable detailing the creation of a flexible 14 x 15 pixel, Pong playing garment.

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After a year’s worth of hard work, Spencer finally had the chance to adorn the wearable at a few Halloween parties back in October where it was (understandably) a big hit.

The Maker created a screen using a series of RGB LED strips, soldered together into a large flexible panel of 14 x 15 full color pixels. In addition, an Arduino Mega (ATmega1280) serves as the brains of the game, along with a cleverly designed controller using a slide-potentiometer and single button. To play back, the computer AI uses about 15 lines of code.

Oh, and yes, Spencer made the pong project removable (the batteries and the ‘Magic Box’ go into a pocket) so the shirt can be washed after it is shown off.

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Then, there is Maker Fernando Vicente who revealed how easy it is to transform an ATtiny45 MCU into a fully-functional Pong game. The design was accomplished by connecting a set of RGBs to a PBo. For storing purposes, Vicente utilized fifteen registers throughout the project to achieve a horizontal resolution of 120 x 96, giving the screen a more square appearance.

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“There are also other parts of the code that might be of interest. For example, I’ve use LFSR to add some pseudo-random variables to the ball direction and the paddle ‘computer’ movements,” the Maker explains.

Next, Onur Avun recreated a new rendition to the classical game on an Arduino Uno (ATmega328) using a PCD8544 LCD screen — more commonly known as the Nokia 5110 screen. Player bars are controlled by a potentiometer for each player, meaning if you want the bar to go left, just turn the potentiometer left.

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Lastly, our friends over at Evil Mad Scientists decided to pay homage to the pop sensation by building a real-life tabletop Pong game. Driven by an ATmega168, the Makers devised a project which combined the awesomeness of ping-pong, foosball and pinball. In the recreation, two players each have a single knob responsible for controlling the position of a paddle along a short track.

Using the paddles, the ball is bounced back and forth, with each player attempting not to miss the ball. The paddle surfaces are curved, so that the ball reflects in various directions depending on the position of impact. The paddles are also powered, thereby enabling the ball to maintain a fairly constant speed between the two sides, gradually increasing as the game goes on.

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“The playfield is level and has a dotted line down the middle, and the scores are displayed on either side of that line. There are top and bottom walls of the playfield that the ball can bounce off of. Sounds possible, right? So we built it. We documented the build with (a heck of a lot of) photos, which are available in this Flickr set,” EMSL notes.

This smart washing machine can order detergent when you’re out

Cloudwash — designed by the folks at Berg — is a prototype washing machine (based on a standard Zanussi model) connected to a web platform. The team created the futuristic device to explore how the ever-growing Internet of Things would change the appliances most commonly found in our homes, and to discover what new, innovative features would be made possible.

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With the smart machine, users would be able to remotely program wash loads and even purchase detergent, for instance, all through the touch of a button using its simple companion mobile app. In order to make this a reality, the team modded a Zanussi and intercepted both its connection and system controls by inserting an Arduino Mega (ATmega1280). This would then enable the megaAVR based board to read and write the serial data that was passing to and fro.

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This reverse engineering provided essential infrastructural information on the machine, which through logging, allowed the Berg crew to gather intel on how the interface system instructs the control system to begin or end a wash, and the manner in which it relays data back to update the view on the interface.

“Given this knowledge, we used a custom PCB and our own Devshields to give the Zanussi a web API via the Berg platform. Using this API we could (a) listen for wash instructions from the machine; and (b) send commands to trigger washes and update the interface, all from a regular website.”

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The communication network was built around Node.js and MySQL, serving as a virtual database of each connected machine’s programed state. Initiated events are updated in the database and subsequently sent to a paired iOS device via push notification.

Currently, Cloudwash offers three basic customizable options, which can be configured using the smartphone app. The control system is capable of presetting washes, timing cycles, and pushing notifications/e-commerce.

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What if you never had to run out to the corner store again? What if you no longer had to be yelled at by your significant other for forgetting to remind them that the detergent was empty? Imagine a day when simply pressing one of a washing machine’s buttons results in either a reminder to the user to buy detergent, or even more convenient, directly alerting a vendor to purchase the soap.

While the device is merely a prototype, it does offer both the industry and masses a glimpse into how the Internet of Things (IoT) is capable of significantly changing our daily routine.

Most recently, our friends at EDN explored Berg’s IoT prototyping case study, which “makes [an] interesting reading for those considering or involved in IoT development, especially if they are updating a product to make it Internet ready.” (You can read that resourceful piece here.)

Indeed, the IoT comprises a combination of multiple market segments, tens of thousands of OEMs and hundreds of thousands of products. To be sure, the IoT is seen by many as the next wave of dramatic market growth for semiconductors and is expected to be worth trillions of dollars for a wide range of industries.

As this market takes shape, you’ll find Atmel continue to power the edge nodes that form the link between individual devices (like washing machines) and the gateways that connect to the cloud. From embedded processing and connectivity to sensors, security, and software, we’re connecting each of the IoT’s building blocks with a rich ecosystem of design tools and development partners.