Tag Archives: Arduino Uno

Simplify your home gardening with this automated controller system


The CoreConduit is a modular garden control system that makes it easier for you to grow plants.


When it comes to gardening, maintaining a regular watering schedule, ensuring proper light and delivering the right nutrients can be quite difficult. Luckily, electronic controllers can assist planters in creating an optimal environment by controlling fans, heaters, lights and pumps, then sending an alert when attention is required. With that in mind, Maker Cory Potter recently set out to make automated home gardening more accessible and feasible to the masses with a hydroponic modular system that he calls CoreConduit.

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“I believe everyone should be able to grow their own plants at home without having to go through the painful process of learning what does and doesn’t work. I’ve distilled it down to an electronic control system that provides you with the insight you need to get your little green friends growing and thriving. I want to help you learn more about your plants by using the controller and using helpful reminders,” Potter writes.

The system is comprised of two components: an Arduino Uno (ATmega328) based controller and a receiver built around an Arduino Pro Mini (ATmega328) connected to an nRF module for wireless communication of up to 1,000 feet. The receiver easily syncs via I2C to the Arduino Uno, thereby allowing a user to extend its capabilities with add-on shields like an LCD with buttons to show the status and communicate with any messages as well as an SD card module for data logging.

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The Arduino embedded within the controller is programmed with maintaining ideal environmental conditions for the plants to thrive. For instance, users can regulate the temperature, lighting and humidity within an indoor space, or schedule the delivery of nutrients by automating the pump cycle.

As the Maker notes, the safety and simplicity associated with wireless outlets is a much better alternative to traditional relays. With spring in full swing, are you ready to get planting? If so, head over to the project’s official Kickstarter page to learn more.

This robotic guitar can shred all by itself


Maker creates a robotic guitar to bring unseen data sources into the real world.


It all began nearly 30 years ago when Ben Reardon was awestruck by a robot playing a classical guitar at the 1988 World Expo in his hometown of Brisbane, Australia. While he may have only been a teenager at the time, he promised himself that he’d go on to build one of his own when he grew up. 27 years later, Reardon has indeed achieved his childhood aspirations by creating a pretty slick robotic player guitar — or what he calls the first “network time protocol accurate, Internet of Things connected, Big Ben chiming grandfather clock, firewall log playing, door chiming, guitar playing robot thingy.”

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The Maker realized that all of the technological ingredients were available to bring the idea to life after attending SIGGRAPH 2014, and in order to first test out his concept, Reardon devised a prototype robotic tambourine using a vibrating disk, Raspberry Pi, some Python script, a few LEDs and a pair of piezo speakers.

“I wired up a vibrating disk (like the one you have in your mobile phone that makes it vibrate) into a Raspberry Pi GPIO pin. The vibrating disk sat just above the drum skin and vibrated when it received a current. The Pi was connected to the Internet and a python script tailed the firewall logs so that when the Pi was hit from an IP, the firewall blocked the connection and a current was sent to the vibrating disk, which then jumped up and down on the tambourine. Also at this point, the blue and red LEDs strobed in sequence and a pair of piezo speakers sounded in turn,” he writes.

Whilst this prototype was a mere proof-of-concept, it was a significant ‘hello world’ moment as the gap had been bridged between an esoteric real-time data source and the real world. Moving ahead, Reardon equipped his guitar with both an Arduino Uno (ATmega328) and a Raspberry Pi as well as a RC servo for each of the six strings. In addition, actual picks were employed to strum the harmonic sounds of the acoustic guitar. These were affixed to the servo horns using a screw at the pivot and a small copper pin. The Maker also ended up using aluminum extrusion to mount the servo — three per side to leave space for pick adjustments.

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“The servo rig needs to be just right. It has to be stiff enough so as not to move, whilst still allowing the pick to be adjusted up, down and sideways so as to position the tip of the pick just so; critically plucking just enough string whilst remaining at the right angle and depth so as to stay clear and not get stuck — or it would never pluck the string at all,” he writes.

Altogether, the guitar featured six yellow manual buttons to operate and tune each pick up and down individually, along with two additional buttons to run pre-programmed routines. The six tuning buttons were controlled by the ATmega328 board, while the pair of pre-programmed buttons were monitored by the Pi. For some extra effects, LED lights were tasked with illuminating blue lights inside picks. To complete the project, Reardon only need 460 lines of code — Python and a bit of Bash — and Processing sketches for the Arduino.

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Intrigued? Head over to the project’s official page here, or simply listen to the robotic instrument strum a few soothing sounds below.

Hacked 3D printer decorates Japanese bento lunch boxes


And to think, we were told not to play with our food as kids! 


Over the past couple of months, we’ve seen some rather impressive 3D printers extrude a whole heck of a lot more materials than just plastic. One area in particular that has generated quite a bit of interest has been 3D-printed food. From chocolate to pizza to pancakes, additive manufacturing technologies will continue to revolutionize the way in which we prepare and consume our meals. Recently, Maker Yoshihiro Asano hacked an AT90USB1286 based Solidoodle 3D printer to create innovative designs on traditional Japanese packed lunches, also known as bento boxes.

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For those of you who may not be familiar with bento, these are single-portion lunches that you can either make at home or purchase on-the-go. Housed in a box-shaped container, the meals consist of everything you would need to get through a day: rice, fish, meat, and pickled or steamed vegetables. It is also Japanese tradition to decorate the enclosed items with imagery of people, animals, buildings or other everyday things like flowers.

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While the aptly-named Lunchbot doesn’t necessarily 3D print an entire bento lunch for you, it does lend a hand during the decorating process to help you one-up your friends and fellow colleagues while sitting around the table. As Asano explained, the device is essentially a hacked Solidoodle 3D printer that began as a joke yet turned into something much more enjoyable.

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Inspired by a rice flour paste printing Delta bot, the Maker designed a specialty extruder for his Solidoodle and wrote a program in Processing for applying dry furikake to his boxes in any shape desired. The software then converts these pictures into simple patterns, which are translated into G-code and used to instruct Lunchbot how to draw the furikake. In order to make this work, the cartridges holding the seasoning are controlled by an Arduino Uno (ATmega328) and tasked with dropping the flakes onto the rice.

Watch it in action below!

25 dev boards to help you get started on your next IoT project


A closer look at some of today’s most popular development boards to help you get started on your next IoT design.


With billions of everyday objects expected to become Internet-enabled over the next couple of years, Makers are continually seeking new ways to add connectivity to their designs. As a result, hobbyists and engineers are turning to a wide range of IoT development boards and platforms to better accelerate and ease the process.

Being at the heart of the IoT and all, we’ve decided to compile a list of just some of today’s most popular, Atmel powered ones that will surely help as you embark on your next prototype or project. (Keep in mind, there are countless others, with new ones popping up on the daily!)

SAM R21 Xplained Pro

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The Atmel | SMART SAM R21 Xplained Pro is a hardware platform to evaluate the ATSAMR21G18A microcontroller. Supported by the Atmel Studio integrated development platform, the kit provides easy access to the features of the Atmel ATSAMR21G18A and explains how to integrate the device in a custom design. The Xplained Pro MCU series evaluation kits include an on-board Embedded Debugger, and no external tools are necessary to program or debug the ATSAMR21G18A. A great option for those developing an 802.15.4/ZigBee design.

Arduino Uno

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The Arduino Uno R3 is a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which six can be used as PWM outputs), six analog inputs, a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. Simply connect it to a computer via a USB cable or power it with a AC-to-DC adapter or battery to get started.

Arduino Yún

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The Arduino Yún is a microcontroller board based on the ATmega32U4 and the Atheros AR9331. The board comes with built-in Ethernet and Wi-Fi support, along with a USB-A port, microSD card slot, 20 digital input/output pins (of which seven can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a micro USB connection, an ICSP header, and three reset buttons. What’s more, Facebook’s Parse recently unveiled a new line of SDKs for connected devices with the first Arduino SDK targeted for the Yún.

Arduino Pro Mini

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Intended for semi-permanent installation in connected objects, the Arduino Pro Mini is based on the ATmega328. The board boasts 14 digital input/output pins (of which six can be used as PWM outputs), six analog inputs, an on-board resonator, a reset button, and holes for mounting pin headers. A six-pin header can be connected to an FTDI cable or Sparkfun breakout board to provide USB power and communications.

Arduino Nano

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The Arduino Nano is a small, breadboard-friendly board based on the ATmega328. The microcontroller has more or less the same functionality of the Arduino Duemilanove, but in a different package. It lacks a DC power jack, and works with a Mini-B USB cable instead of a standard one.

Pinoccio

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With an Atmel ATmega256RFR2 at its core, Pinoccio is a wireless, web-ready MCU packed with Wi-Fi, LiPo battery and a built-in radio. Each unit can communicate with one another using a mesh network, making them 14 times more efficient than standard Wi-Fi devices.

TinyDuino

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The TinyCircuits TinyDuino is an Arduino-compatible, ATmega328P based board in an ultra-compact package that provides Makers with the full power of an Uno in a size that’s less than a quarter.

UDOO

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UDOO is a multi-development platform solution for Android, Linux, Arduino and Google ADK 2012. The board, which is built upon an ARM Cortex-A9 CPU and Atmel | SMART SAM3X8E ARM Cortex-M3 CPU, is designed to provide a flexible environment that lets Makers explore the new frontiers of the Internet of Things and switch between Linux and Android in a matter of seconds, simply by replacing the MicroSD card and rebooting the system.

Libelium Waspmote

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Waspmote is an open-source, ATmega1281 based wireless sensor platform specially focused on the implementation of low consumption modes to enable the sensor nodes to be completely autonomous and battery powered, offering a variable lifetime between one and five years depending on the duty cycle and the radio used.

The AirBoard

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The AirBoard is a thumb-sized, all-in-one MCU designed for ultra-fast prototyping on IoT projects. The open-source board is equipped with an ATmega328P and pre-loaded with the standard Arduino Fio bootloader. The wireless-friendly computer supports automatic over-the-air programming via Bluetooth, Wi-Fi or XBee, and can be controlled by smartphone or the web.

Tessel 2

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Tessel 2 is an affordable, accessible and robust development platform that lets Makers build connected hardware devices. The board packs built-in Wi-Fi, an Ethernet jack, a pair of USB ports, and a system that runs real Node.js/io.js. Meanwhile, it employs a processor/coprocessor architecture, combining an Atmel | SMART SAM D21 Cortex M0+ MCU to control I/O and a Mediatek MT7260n Wi-Fi router SoC to run user code, host USB devices and handle the network connections.

panStamps

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panStamps are small wireless modules programmable within the Arduino IDE. Each module contains an Atmega328P MCU and an RF interface, providing the necessary connectivity and processing power to create autonomous low-power wireless motes.

Flutter

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Flutter is a $36 wireless Arduino with a half-mile range that lets users develop mesh networking protocols and connected devices in an efficient yet inexpensive manner. It’s perfect for robotics, consumer electronics, wireless sensor networks, and educational platforms. Flutter is packed with a powerful Atmel | SMART SAM3S Cortex-M3 processor, while an ATSHA204 crypto engine keeps it protected from digital intruders.

SODAQ

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SODAQ is a LEGO-like rapid prototyping board driven by an ATmega328P that gives Makers and engineers the ability to easily connect a wide variety of sensors and devices to the Internet efficiently. With its solar powered data acquisition technology, data can be collected virtually anywhere and seamlessly transferred to the web.

IMUduino BTLE

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Billed as the smallest Arduino Leonardo compatible clone, the IMUduino includes an ATmega32U4 at its core, as well as USB keyboard/mouse emulation, on-board Bluetooth LE, real-time orientation and motion sensing IMU, as well as a 10V max voltage regulator.

SparkFun RedBoard

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The SparkFun RedBoard combines the simplicity of the Arduino Uno’s Optiboot bootloader, the stability of the FTDI and the R3 shield compatibility of the latest Arduino Uno. The ATmega328 based board can be programmed over a USB Mini-B cable using the Arduino IDE.

XinoRF

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The XinoRF is an Arduino-compatible electronics development board with an onboard 2-way Ciseco SRF data radio, which supports over-the-air programming, features built-in wireless capabilities and is powered by an ATmega328P.

The Rascal

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The Rascal is a small, AT91SAM9G20 powered computer that Makers can use to monitor and control their connected world remotely. In addition, it features its own web-based editor on-board, is compatible with most Arduino shields, and can be programmed in Python.

Microduino

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Microduino is a quarter-sized Arduino-like board with an ATmega328P at its heart. With a unique UPin-27 pinout, Microduino’s plug-and-play modules can be easily stacked together to add functionalities.

Nanode

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Nanode is an open-source, Arduino-like board that is equipped with built-in Internet connectivity and based on an ATmega328P. The low-cost, upgradeable board is ideal for those looking to bring their IoT ideas to life.

OpenKontrol Gateway

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The OpenKontrol Gateway is an ATmega328 driven kit that enables communication between many common mediums and protocols. It is totally compatable with the Arduino IDE and supports Wi-Fi, low-power RF, Ethernet and Bluetooth. Beyond that, it can be configured with on-board SRAM, an SD card, a real-time clock, and a coin-cell battery and sports an FTDI programming port.

Arietta G25

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Arietta G25 is an uber-mini system-on-module powered by a SAM9G25 ARM9 processor. The 20mm x 50mm board, which was developed with the Maker community in mind, is ideal for low-power, embedded gadgets and other DIY IoT devices.

WIOT

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WIOT is an open-source, rechargeable development board for the Internet of Things built around the ATmega32U4. WIOT also boasts integrated Wi-Fi capabilities through an on-board ESP8266 module.

SmartEverything

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SmartEverything is a dev board equipped with sensor options, communication interfaces and connection to the cloud for IoT designs. An Atmel | SMART ARM Cortex-M0+ based CPU USB host orchestrator chip manages traffic between peripherals, while an Atmel CryptoAuthentication device (ATSHA204) enables the implementation of a full security SHA-256 hash algorithm with message authentication code. The board utilizes the SIGFOX global network cellular connectivity solution to enable access to the IoT.

Apio

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Apio is an open-source IoT platform, which lets Makers and designers create their own smart systems and connected objects in a matter of minutes. It is comprised of two USB devices, the General and Dongle, both of which are based on an ATmega256RFR2 and ATmega16U2, along with a custom operating system and SDK.

LightBlue Bean

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The LightBlue Bean is a Bluetooth Low Energy, Arduino-compatible microcontroller. Using Bluetooth 4.0, it is wirelessly programmed, runs on a coin cell battery and is perfect for smartphone-controlled projects. Powered by an ATmega328P, the board features a three-axis accelerometer, a temperature sensor, an RGB LED, and includes iOS, OS X and Windows 8 support.

Painting random patterns on Easter eggs with Arduino


What an eggs-ellent idea!


First conceived in the spring of 1990 by Bruce Shapiro, the Egg-Bot is an art robot capable of drawing on rounded objects ranging in size from a ping-pong ball to a softball. The Maker initially came up with the idea as he grew fascinated by controlling stepper motors from his computer. And given the timing, the obvious canvas had been an Easter egg.

Since then, there have been a slew of Egg-Bot styled machines to come out of the DIY community. While many of them have been tasked with complex geometric patterns, Maker Curtis Swartley decided to take a different approach.

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In order to bring his Random Pattern Easter Egg Machine to life, the Maker employed an Arduino Mega (ATmega2560), a pair of Arduino Unos (ATmega328), two motor shields, a couple of servos, some stepper motors, a few limit switches, and a Sharpie marker. Oh, and don’t forget the egg.

Watch the end result below!

Modding a post-WWII Craftsman table saw into a fully-functioning 3D printer


Boy, would our grandfathers have loved to see this!


While 3D printing’s roots only date back to the 1980s, do you ever wonder what an additive manufacturing machine would’ve looked like had the processing power of today been available 70 years ago? Fortunately, Maker Chad Bridgewater has given us at least a faint idea.

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The Maker recently took the shell of a post-WWII Craftsman table saw and modded it with modern-day technologies to create a fully-functional 3D printer. As you can expect, the antiquated piece of equipment that he had bought for $5 at a tag sale no longer worked as its motor was shot. So, Bridgewater decided to gut the entire thing and house a set of electronics inside the machine’s original motor casing.

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At the internal base of its shell, the Maker bolted together a set of laser-cut panels that would hold its components, which consisted of an LCD screen, a power supply, an SD card slot, an Arduino Uno (ATmega328) and an Arduino shield. He then disassembled the stepper motors and powder coated them white, and used a 1941 lathe to machine pulley shafts, aluminum spacers, and motor shaft extensions.

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Sure, the Maker could’ve stopped there. However, channeling his inner DIY spirit, he decided to go on by retrofitting the old post-WWII Craftsman table saw into a working laser engraver.

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To accomplish this, Bridgewater employed a Mr. Beam Shield on top of an Arduino Uno (ATmega328) and hooked up the device’s 16 x2 LCD screen to a Raspberry Pi B. Once again, a 1941 lathe was used to machine steel and aluminum spacers, motor shaft extensions and pulley shafts. Finally, the Z-axis is controlled manually by a rotary encoder, which is mounted to the original chromed blade adjustment knob on the unit’s front panel.

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Want to learn more? Head over to the project’s official page here.

Playing the game of Labyrinth using your brain


One group’s project is bringing a much more literal meaning to the term ‘mind game.’


First launched in 1946, Labyrinth is a skill game consisting of a box with a maze, holes, and a steel marble. The object of the game is to try to tilt the playfield to guide the marble to the end of the maze, without letting the ball fall into any of the holes. While versions of the game featured a suspended maze surface that rotates on two axes using a knob, other handheld versions have included an entirely closed transparent cover on top. However, none have ever been controlled by the human mind. That was, at least, until now.

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As part of Autodesk’s neuroscience themed hackathon event, BrainiHack 2015, a team of Makers going by the name Blue GSD —  Daniel Harari, Gal Weinstock, and Maxim Altshul — created their own iteration of the classic game, all powered through brainwaves. The contraption was entirely 3D-printed and based on the OpenBCI open-source platform (ATmega328P).

To start, the game’s movement was enabled through a pair of micro servo motors, each controlled with an Arduino Uno (ATmega328). Meanwhile, the mechanism was comprised of three nested frames that were anchored in various places to achieve two degrees of freedom – roll and pitch. Given the limited amount of time to complete the project, the motors and motor arms were all attached to the frame using zip ties, while some nuts and screws were employed to keep the frames in place.

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For those who may not know, OpenBCI offers a GUI that lets users visualize and analyze data in a more efficient and easier manner. The interface provides time-domain and frequency-domain (FFT) graphs, as well as a map of the head with electrode activity. OpenBCI allowed the team to attach electrodes wherever they wanted, and carry out experiments with various methods and brain waves.

“Once the data is captured with OpenBCI, it is transferred to the computer for analysis, the computer runs a Processing program that computes the Fourier Transform of the signal over a defined interval of time, filters the spectrum to look at relevant frequencies and finds the most powerful frequency in the range,” the team writes. “If the peaked frequency is the one we are looking for, a command is sent to an Arduino board via serial port. The Arduino then controls the servos according to the command received.”

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However, the problem with brain-reading technology is that it can be on the slower. Given the real-time nature of the Labyrinth game, any sort of delay can cause a lapse in judgement and the ball to fall through a hole. As a result, the team decided to simplify the game into a basic maze with two different signals to study — the left-right position toggle was controlled via Alpha waves, while up-down positioning driven by SSVEP. By combining both Alpha and SSVEP, the team was presented with two types of waves that were capable of control and anticipation, which provided them the ability to control the game with just one person.

As it turns out, the team who admits to having absolutely no background in neuroscience ended up winning the OpenBCI prize for the best project in the open-source category. Those interested can head over to its official page to read more. Meanwhile, the project’s files are available on Thingiverse so that Makers can download and create their own Labyrinth game.

Which Arduino board is right for you?


Picking an Arduino is as easy as Uno, Due, Tre! 


Thinking about starting a project? See which Arduino board is right for the job.

Arduino Uno

This popular board — based on the ATmega328 MCU — features 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, USB connection, power jack, an ICSP header and a reset button.

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The Uno does not use the FTDI USB-to-serial driver chip. Instead, it features the ATmega16U2 (ATmega8U2 up to version R2) programmed as a USB-to-serial converter.

In addition, Revision 3 of the Uno offers the following new features:

  • 
1.0 pinout: added SDA and SCL pins that are near to the AREF pin and two other new pins placed near to the RESET pin, the IOREF that allow the shields to adapt to the voltage provided from the board. Note: The second is not a connected pin.
  • 
Stronger RESET circuit.
  • ATmega16U2 replace the 8U2.

Arduino Leonardo

The Arduino Leonardo is built around the versatile ATmega32U4. This board offers 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, microUSB connection, power jack, an ICSP header and a reset button.

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The Leonardo contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started. Plus, the ATmega32U4 offers built-in USB communication, eliminating the need for a secondary processor. This allows it to appear as a mouse and keyboard, in addition to being recognized as a virtual (CDC) serial / COM port.

Arduino Due

The Arduino Due is an MCU board based on the Atmel | SMART SAM3X8E ARM Cortex-M3 CPU.

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As the first Arduino built on a 32-bit ARM core microcontroller, Due boasts 54 digital input/output pins (of which 12 can be used as PWM outputs), 12 analog inputs, 4 UARTs (hardware serial ports), an 84 MHz clock, USB OTG capable connection, 2 DAC (digital to analog), 2 TWI, a power jack, an SPI header, a JTAG header, a reset button and an erase button.

Unlike other Arduino boards, the Due runs at 3.3V. The maximum voltage that the I/O pins can tolerate is 3.3V. Providing higher voltages, like 5V to an I/O pin, could damage the board.

Arduino Yún

The Arduino Yún features an ATmega32U4, along with an Atheros AR9331 that supports a Linux distribution based on OpenWRT known as Linino.

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The Yún has built-in Ethernet and Wi-Fi support, a USB-A port, a microSD card slot, 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, microUSB connection, an ICSP header and 3 reset buttons. The Yún is also capable of communicating with the Linux distribution onboard, offering a powerful networked computer with the ease of Arduino.

In addition to Linux commands like cURL, Makers and engineers can write their own shell and python scripts for robust interactions. The Yún is similar to the Leonardo in that the ATmega32U4 offers USB communication, eliminating the need for a secondary processor. This enables the Yún to appear as a mouse and keyboard, in addition to being recognized as a virtual (CDC) serial?COM port.

Arduino Micro

Developed in conjunction with Adafruit, the Arduino Micro is powered by ATmega32U4.

The board is equipped 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, microUSB connection, a ICSP header and a reset button. The Micro includes everything needed to support the microcontroller; simply connect it to a computer with a microUSB cable to get started. The Micro even has a form factor that lets the device be easily placed on a breadboard.

Arduino Robot

The Arduino Robot is the very first official Arduino on wheels. The robot is equipped with two processors — one for each of its two boards.

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The motor board drives the motors, while the control board is tasked with reading sensors and determining how to operate. Each of the ATmega32u4 based units are fully-programmable using the Arduino IDE. More specifically, configuring the robot is similar to the process with the Arduino Leonardo, as both MCUs offer built-in USB communication, effectively eliminating the need for a secondary processor. This enables the Robot to appear to a connected computer as a virtual (CDC) serial?COM port.

Arduino Esplora

The Arduino Esplora is an ATmega32u4 powered microcontroller board derived from the Arduino Leonardo. It’s designed for Makers and DIY hobbyists who want to get up and running with Arduino without having to learn about the electronics first.

The Esplora features onboard sound and light outputs, along with several input sensors, including a joystick, slider, temperature sensor, accelerometer, microphone and a light sensor. It also has the potential to expand its capabilities with two Tinkerkit input and output connectors, along with a socket for a color TFT LCD screen.

Arduino Mega (2560)

The Arduino Mega features an ATmega2560 at its heart.

It is packed with 54 digital input/output pins (of which 15 can be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, USB connection, a power jack, an ICSP header and a reset button. Simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started. The Mega is compatible with most shields designed for the Arduino Duemilanove or Diecimila.

Arduino Mini

Originally based on the ATmega168, and now equipped with the ATmega328, the Arduino Mini is intended for use on breadboards and projects where space is at a premium.

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The board is loaded with 14 digital input/output pins (of which 6 can be used as PWM outputs), 8 analog inputs and a 16 MHz crystal oscillator. It can be programmed with the USB Serial adapter, the other USB, or the RS232 to TTL serial adapter.

Arduino LilyPad

The LilyPad Arduino is designed specifically for wearables and e-textiles. It can be sewn to fabric and similarly mounted power supplies, sensors and actuators with conductive thread.

The board is based on the ATmega168V (the low-power version of the ATmega168) or the ATmega328V. The LilyPad Arduino was designed and developed by Leah Buechley and SparkFun Electronics. Readers may also want to check out the LilyPad Simple, LilyPad USB and the LilyPad SimpleSnap.

Arduino Nano

The Arduino Nano is a tiny, complete and breadboard-friendly board based on the ATmega328 (Arduino Nano 3.x) or ATmega168 (Arduino Nano 2.x).

The Nano has more or less the same functionality of the Arduino Duemilanove, but in a different package. It lacks only a DC power jack and works with a Mini-B USB cable instead of a standard one. The board is designed and produced by Gravitech.

Arduino Pro Mini

Powered by an ATmega328, the Arduino Pro Mini is equipped with 14 digital input/output pins (of which 6 can be used as PWM outputs), 8 analog inputs, an on-board resonator, a reset button and some holes for mounting pin headers.

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A 6-pin header can be connected to an FTDI cable or Sparkfun breakout board to provide USB power and communication to the board. Note: See also Arduino Pro.

Arduino Fio

The Arduino Fio (V3) is a microcontroller board based on Atmel’s ATmega32U4. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 8 analog inputs, an on-board resonator, a reset button and holes for mounting pin headers. It also offers connections for a lithium polymer battery and includes a charge circuit over USB. An XBee socket is available on the bottom of the board.

The Arduino Fio is intended for wireless applications. The user can upload sketches with an a FTDI cable or Sparkfun breakout board. Additionally, by using a modified USB-to-XBee adaptor such as XBee Explorer USB, the user can upload sketches wirelessly. The board comes without pre-mounted headers, facilitating the use of various types of connectors or direct soldering of wires. The Arduino Fio was designed by Shigeru Kobayashi and SparkFun Electronics.

Arduino Zero

Last year, the tandem of Atmel and Arduino debuted the Zero development board – a simple, elegant and powerful 32-bit extension of the platform. The Arduino Zero board packs an Atmel | SMART SAM D21 MCU, which features an ARM Cortex M0+ core. Additional key hardware specs include 256KB of Flash, 32KB SRAM in a TQFP package and compatibility with 3.3V shields that conform to the Arduino R3 layout.

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The Arduino Zero boasts flexible peripherals along with Atmel’s Embedded Debugger (EDBG) – facilitating a full debug interface on the SAMD21 without the need for supplemental hardware. Beyond that, EDBG supports a virtual COM port that can be used for device programming and traditional Arduino bootloader functionality. This highly-anticipated board will be available for purchase from the Arduino Store in the U.S. on Monday June 15th.

Arduino AtHeart

The Arduino AtHeart program was specifically launched for Makers and companies with products based on the open-source board that would like to be clearly identified as supporters of the versatile platform. The program is available for any device that includes a processor that is currently supported by the Arduino IDE, including the following Atmel MCUs:

Participants in the program include startups like:

EarthMake – ArLCD

The touchscreen ArLCD combines the ezLCD SmartLCD GPU with the Arduino Uno.

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Bare Conductive Touch Board

The ATmega32U4 based Touch Board can turn nearly any material or surface into a sensor by connecting it to one of its 12 electrodes, using conductive paint or anything conductive.

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Blend Micro

The RedBearLab integrated dev platform “blends” the powers of Arduino with Bluetooth 4.0 Low Energy into a single board. It is targeted for Makers looking to develop low-power IoT projects in a quick, easy and efficient manner. The MCU is driven by an ATmega32U4 and a Nordic nRF8001 BLE chip.

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littleBits Arduino Module

The fan-favorite Arduino module, which happens to also be based on an ATmega32U4, lets users easily write programs in the Arduino IDE to read sensors and control lights and motors within the littleBits system.

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Smart Citizen Kit

An Arduino-compatible motherboard with sensors that measure air composition (CO and NO2), temperature, light intensity, sound levels, and humidity. Once configured, the Smart Citizen Kit is capable of streaming data collected by the sensors over Wi-Fi.

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Ardusat gives young Makers control of satellites in space


Ardusat lets students to launch experiments in space and collect data from an orbiting satellite.


Ask any classroom of kids what they want to be when they grow up, and undoubtedly a few imaginative youngsters will answer emphatically with “astronaut!” With that lofty goal in mind, Salt Lake City-based startup Ardusat has partnered with satellite-based data provider Spire to launch a program that would bring space exploration to the classroom, allowing students to use programmable sensors onto satellites. And sure, while satellites may conjure up images of bus-sized contraptions, many of those now going into orbit are nearly the size of a softball.

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As previously reported on Bits & Pieces, Ardusat is a first-of-its-kind open satellite platform that enables students to easily design and run applications, games and experiments in space, while also steering onboard cameras to take pictures. Since being first successfully launched back in August 2013 and transferred onto the ISS, Ardusat has already found its way into more than 40 schools that incorporate its space kits. What’s more, the company recently attained $1 million in seed funding from Space Florida, Fresco Capital, Spire and other undisclosed investors, and hopes to use the money to expand its program.

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Ardusat is designed to give ordinary people the chance to easily program and control over 25 different integrated sensors including spectrometers, barometers, magnetometers, radiation measurement devices, gyroscopes, accelerometers and thermometers. Aside from those, each kit contains an Arduino Uno (ATmega328), a breadboard, LEDs, jumper wires, resistors and a USB cable.

The space kits mimic the function and size of actual satellites that are currently overhead. Once students complete their project inside the classroom, Ardusat tests their codes and sends the so-called “CubeSat” to one of the actual satellites. These CubeSats then orbit the Earth at nearly five miles per second, collecting a variety of data that students can actually use.

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While a classroom full of space kits may cost over $2,500, the curriculum and the online resources are available for free. Beyond that, an individual unit, which designed for three to five students working together, will only set you back $150. Interested in learning more? Head over to their official page here.

Here are some unbelievable projects to help celebrate Arduino Day


With Arduino Day celebrations just about to kick off, let’s take a look at some cool ‘duino projects!


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 couple of months to help celebrate March 28th.

As you can tell, the open-source platform has come a long way since its inception a decade ago. Today, the Arduino family has grown to include more than two dozen low-cost boards, a community with hundreds of thousands of tinkerers and over a million (and counting) Arduino units in the wild.

So without further ado, here’s some of our favorite projects to kickoff Arduino Day festivities!

Unlocking doors by saying ‘open sesame!’

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MIT student Dheera Venkatraman has developed a new way for users to wirelessly unlock their doors with simple Google Now-like commands.

Wearing an Enigma machine

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Designed by Maker “Asciimation” the Enigma wristwatch is a fully-functional wearable that replicates the original machine, which was used to cipher secret messages in the 20th century.

Changing the TV channel with your mind

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Maker Daniel Davis — who runs the website “Tinkernut” — has developed a homemade mind-controlled TV remote using an old Star Wars Force Trainer game and Arduino.

A wearable that lets you bring your teacher anywhere

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Like a hawk-eyed professor, this wearable device literally puts a teacher looking over your shoulder.

This book cover judges you instead

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Amsterdam creative studio Moore has turned the tables on an old-school idiom using a book sleeve equipped with an integrated camera and facial-recognition technology that scans the face of whoever comes near. If someone conveys too much emotion – whether overexcitement or under-enthusiasm — the book will remain locked.

Stopping cheaters in online video games

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To end cheating in online video game tournaments, software engineer David Titarenco developed what he calls Game:ref. Built around an Arduino Mega SDK, the device is capable of identifying mouse-based cheats that are typically seen in FPS, MOBA, RTS and other competitive games, ranging from auto-clicking to aimbots.

Catch ‘em all with help of Arduino

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Pepijn de Vos has created a system that acts as a Game Boy, storing a single Pokémon in EEPROM. This enables a user to trade between first-generation games using only a single console, all by themselves.

Tapping out tweets with on an old telegraph

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Maker Devon Elliot outfitted an old telegraph sounder seated in a wooden resonator with some modern-day electronics so that it could tap out tweets.

Detecting air pollution with a Steampunk helmet

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The Jacobson’s Fabulous Olfactometer is a head-mounted contraption that offers sensory augmentation for the human olfactory system under extreme living conditions of polluted cities.

Controlling electronic devices using cords

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Inspired by a water hose, MIT’s Tangible Media Group wants you to control your connected gadgets with their cords. Imagine if tightening a knot could dim a lamp, attaching a clip on a power cord could put a computer to sleep or kinking its wire could power it on/off.

The Internet of Ethical Things?

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Created by Simone Rebaudengo and Matthieu Cherubini, Ethical Things is a project that explores the effects of autonomous systems of the future as they head increasingly towards complex algorithms aimed at solving situations requiring some form of moral reasoning.

A smart table that listens and records meetings

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As its name implies, the Listening Table combines pervasive data collection and the Internet of Things into a new concept, one in which office furniture can listen and record your conversations, using an array of dynamic microphones. When a meeting concludes, participants can see a high-level summary digest showing all the topics discussed.

Now that’s doing-knit-yourself!

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The duo of Varvara Guljajeva and Mar Canet recently debuted the open-source circular knitting machine Circular Knitic. Initially built for a program called DOERS, which was curated by Arduino co-founder David Cuartielles, the DIY device was constructed using a RepRap printer along with some digital fabrication, laser cutting and MakerBeam, and is powered by an Arduino Uno.

Teaching a pup to send selfies

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One Maker proved that, by using the combination of an Arduino Yún, Twilio and a big red button, anyone can train their puppy to send selfies.

Visualize your city’s mood through tweets

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Maker Chadwick Friedman has devised a 3D-printed Twitter Mood Lamp that, as its name would suggest, changes colors to match the attitude of the city. The project is controlled by an Arduino Yún, which causes the device to emit either red, green, or blue based on whether the mood of the city is perceived to be angry, happy, or sad, respectively.

Tracking activities in lower Earth orbit

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Berlin studio Quadrature has developed a custom-built machine, called SATELLITEN, that is capable of keeping tabs on the number of satellite flyovers and plotting them in real-time on a paper map with ink.

Playing real-world Space Invaders with real-world lasers

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Martin Raynsford — who happens to be one of the owners of UK-based laser cutter manufacturer Just Add Sharks — decided to bring the classic game of Space Invaders to life using the hardware of a modified Whitetooth A1 laser cutter along with a laptop keyboard to serve as its gamepad. An Arduino Nano was mounted to a custom 80W laser controller to enable side-to-side movement to help shoot the paper invaders, each clipped to a plate and driven by stepper motors.

Dispensing music with Juice-Box

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For a school assignment, Maker Jae-Hwan Jung devised a soda dispenser-styled jukebox in a project he calls Juice-Box. Programmed with an assortment of musical flavors, users can “dispense” tunes in their own cup-shaped MP3 player. Each dispenser denotes a different genre, such as favorites, jazz, hip-hop or the blues.

Sending encrypted messages using social networks

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Made by Jochen Maria Weber, Cuckoo is device that uses social media as a means of private communication, and encrypts messages into randomly generated words, meanings and noise in order to scatter them over multiple networks simultaneously.

Get ready for your own robotic sidekick

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PLEN2 is a 3D-printable, humanoid robotic kit consisting of a control board, servo motors and other electronic accessories that let Makers of all levels put together themselves. Programmed to mirror its human counterpart, PLEN2 aspires to revolutionize the relationship between homo and robo sapiens.

Time traveling through augmented reality and smell

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A researcher employed an Arduino, an Arduino Wi-Fi Shield, a cheap computer fan and Unity3D software to explore the use of augmented reality within archaeological practice. A mobile app reconstructs real-world images by changing in real-time as the user moves about their environment, while a fan emits scents to make it as if you traveled to another time.

This drone attachment can save your life

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Launched on Kickstarter by a group of Connecticut high school students, Ryptide is an Arduino-powered drone accessory that can deliver an automatically-inflating life preserver to a swimmer in trouble in seconds.

Using your brain and visual stimuli to play music

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In collaboration with researcher Oscar Portolés, digital artist Fèlix Vinyals has developed a hybrid brain computer machine interface installation that allows him to create music and control the lighting during a performance on stage, all through the reading of the electric potential of his brain and visual stimuli.

A Bellagio-like fountain recreated with strings

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Replicating the likes of the Bellagio world-renowned display mixed with a 1950s synchronized swimming performance, Paolo Salvagione has whipped up a kinetic sculpture that uses propulsion to elevate a continuous piece of string into the air.

Art Vader?

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Crafted by Christopher Connell, this ambient Darth Vader poster wirelessly reacts to music playing in a room with various LED color-changing effects.

Automating your Etch-A-Sketch to recreate famous paintings

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Evan Long decided to mod his old Etch-A-Sketch using an Arduino Uno to enable the toy to draw famous pieces of art, including the Mona Lisa. The Maker added 3D-printed custom mounts to its knobs, which housed a pair of two stepper motors and ULN2803 to switch the 12V required for the steppers.

Turning twerking into music

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The Booty Drum is a high-tech musical device that, unlike most instruments, isn’t operated by your hands, feet or head for that matter, but by your posterior. This idea is a collaboration between headphone brand AIAIAI, professional dancer Twerk Queen Louise, Branko from Portuguese electronic band Buraka Som Sistema and Dutch design company Owow.

A robot that shovels for you

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The next time that you’re expecting 12” of snow, wouldn’t it be nice if there was a machine that could do the tedious task for you — without ever having to step foot outside? Well, a Maker by the name of Boris Landoni has devised just that: a remote-controlled snow plow robot powered by an Arduino Uno.

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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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.

An interactive fabric you’ll want to touch

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The brainchild of Esteban de la Torre and Judit Eszter Karpati, OCHO TONOS is an audible textile interface for multi-sensorial interaction, involving both touch and sound. The objective of the project was to create a soundscape through sensor technology inviting audiophiles to perform and explore with reactive textile elements.

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. Seeking to redefine the entire radio control experience, Carnegie Mellon University design student Yaakov Lyubetsky built a fully-functional prototype of an Experimental Form Radio using an Arduino Uno.

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? 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.

A floating orb captures and replays ambient noise

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Created by 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, 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 Wi-Fi and Bluetooth modules.

Designing your own pair of Google Glass

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13-year-old Clay Haight designed something not many kids would have even imagined, particularly at that age: a Google Glass-inspired, intelligent pair of glasses. The young Maker used the sensors on the Arduino Esploraand 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. In an effort to lower the barriers for development and adoption of in-house robots, the Tokyo-based design studio launched a futuristic, Arduino-based device that they call Patin.

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. 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 boards, a Node-based server, solenoids and a Raspberry Pi.

A modern-day message in a bottle

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Created by ECAL graduate David Colombini, Attachment is an Arduino Mega-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.

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.

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:: — 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 various shapes and colors.

Lamp changes color with your mood

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The Mood Lamp is an Arduino-based project created by Italian developer Vittorio Cuculo. 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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MIT’s Tangible Media Group launched a shapeshifting display that lets users interact with digital information in a tangible way. inFORM is equipped with 900 individually actuated white polystyrene pins that make up the surface in an array of 30 x 30 pixels. The interactive piece 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.

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 emits quantum entanglement-inspired sounds.

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.

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. 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.

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 installation acts as both a semi-immersive lightning experience — or as a speaker with visual feedback — to mimic a thunderstorm in both appearance and entertainment.

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.

Brightening the Japanese waterfront 

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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.

This talking foundation wants you to drink more H2O

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The Drink Up Fountain, a collaborative project between YesYesNo Interactive Studio and 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. When a drinker’s lips touch the water, the Arduino Mega-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, 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 put together 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 project 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 can drive 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 Ardduino, which was responsible for analyzing its surroundings and then relaying steering inputs to the NAO unit in the driver’s seat.