• A scary project: diy animatronic eyes using ArduinoJune 17, 2013


    Thanks to Lance who created a project on Instructables, you’ll be able to create remote-controlled eyes using:

    - Arduino Uno,
    - 2x servos,
    - some plexiglass
    - a couple of doll’s eyes.

    If you like animatronics, watch the video: the result is pretty scary!

    Via: Arduino Blog, Source: Instructables

  • A painting machine sensing your touchJune 12, 2013


    Kris Temmerman, a freelance creative developer based in Belgium, just published a nice report on how he built a painting machine running on an Arduino Due and an Android tablet.

    I was always interested to remove the perfection from computer graphics. So thought it would be fun to try to make the most obvious thing first. A machine that uses a paint brush to print a drawing.

    As you can see from the video, Kris was able to translate the pen pressure on the tablet into specific brush strokes on the paper.

    Via: Arduino Blog, Source: GitHub

  • Internet of Things and 3D Printer Summer CampJune 11, 2013

    [Versión en Español aquí]

    (Click for enlarge)

    From 4th to 7th July, there will be a big event in Zaragoza (Spain), the Internet of Things and 3D Printing Summer Camp. It will include Open Hardware keynotes, biometrics sensors, Arduino, Raspberry Pi and Waspmote workshops, a 3D Printer course and a Hackathon for Makers!!

    The sessions are free and they are organized by Cooking Hacks (Libelium's Open Hardware Division), with the collaboration of Zaragoza City Council and the most important development groups of the city: Púlsar, D-Labs, Arduteka, CADesigns, etc.

    In addition, the best projects made during the Hackathon will be awarded with a 3D Printer and a grant in Cooking Hacks.

    To join in, you must subscribe in the links showed in the event site. Hurry up! Very limited seats!!

  • A DIY magnetic levitation vehicle using ArduinoJune 10, 2013


    Next to our Arduino booth at Makerfaire Bay Area we had a cool project created by Antipodes, a girls robotics team headquartered in Pacifica, California, USA. It’s a Do It Yourself (DIY) remote controlled (RC) model maglev with electromagnetic propulsion, or shortly called maglev.

    A maglev is just like a conventional train but instead of wheels it has magnets and it levitates!

    The team did a great job not only for the results achieved but especially in sharing the project’s documentation, detailed with all the steps for the construction through videos and pictures so that others can more easily follow in their footsteps.

    The maglev, which won the Maker Faire Editor’s Choice blue ribbon, contains Arduino UNO, Arduino Wireless Protoshield, plus many other components you can explore in their videos below and in the project page.

    Via: Arduino Blog, Source: The one Robot

  • How I connected my Graduation Cap to the InternetJune 7, 2013


    In 2012, when I completed my undergraduate degree at Cornell University, I had a last minute idea to put an LED array on my graduation mortar board. The night before graduation I wired up a bunch of LEDs to a protoboard and an Arduino. The resulting product worked well, and garnered all kinds of excited remarks from friends and onlookers. But, it wasn’t bright enough in the outdoor sunlight, and it left me yearning to do something a bit more … intense.

    Lucky for me, I stayed at Cornell for a fifth year to get my Masters degree in Electrical Engineering, and I therefore got to graduate again. This time, I was determined to do something over-the-top. Utilizing the super-high-intensity LED circuit board that I had designed for my masters thesis on Hybrid Fiber Optic LED Lighting, I built a web-connected LED graduation cap that would be truly ridiculous. Graduations can be a bit boring, so I wanted to develop an interactive platform (on my head) that others could fiddle with during the ceremonies. And thus, the “Control my Cap” project was born.

    Via and Source: Jeremy Blum

  • Automated aquarium fertilizer doserJune 5, 2013


    If you are using live plants in your aquarium you must remember to fertilize them at regular intervals. Being a bit forgetful, [Deven] automated the process by building this auto-doser.

    There are three different chemicals which are dispensed by the system. They are stored in the drink bottles seen above. Each has a plastic tube which runs up to the dosing motors mounted on the black box.

    Inside the black box is the Arduino that handles timing and switches the motors. The control circuitry is protected using one MOSFET for each. To keep the fish safe the outflow is directed right into the aquarium pump so that the concentrated chemicals are quickly dispersed through the entire tank.

    Now that he’s made it this far he might as well add the ability to feed the fish and control the lighting.

    Via: Hack a Day, Source: Fish Tank Projects

  • Scratch Day 2013May 31, 2013

    Scratch Day event was the last 25th May in Zaragoza. Many people attended the event with their children along the day. There were 2 dedicated rooms in the building for Scratch: one related to beginners, where children learnt to use Scratch to create animations, and the second for advanced. In this one, the kids played with Scratch and Arduino to interactuate with hardware and software.

    Banana piano with Makey Makey, 3D Printers, Printer Bots, Little Bits... too many educational games for children.

  • Automated cat feeder and large plastic screws using ArduinoMay 30, 2013


    We’ve seen automated food dispensers for pets, but none that go so far as to build large plastic screws for dispensing kibble.

    This isn’t [Mathieu]‘s first automatic cat feeder; an earlier version used a wheel to dispense cat food in excessively large version. To improve upon his first build, [Mathiu] decided to use an Archimedean screw to dispense food in 5 gram increments. There was a problem, though: a proper industrial screw cost about $1500 and the ‘consumer’ versions of what he wanted were trash. He though about casting one in epoxy but didn’t want to poison his cat with strange chemicals. He ended up using PolyMorph for his screw, a plastic that melts at 60º C and is also used in medical devices.

    The electronics of the build are an Arduino, a  DS1307 real-time clock, LCD display, and a relay board powering an electric screwdriver motor. From the video demo below, we’re going to say [Mathieu] put together a pretty nice automated cat feeder.

    Via: Hack a Day, Source: Blogouillage

  • Arduino Yun and Raspberry Pi: let's get the battle startedMay 29, 2013


    In the Maker Faire Bay Area 2013, Arduino Team showed the new incoming release: Arduino Yun. This board is a new proof of concept for makers. People who want to have an all-in-one board to use in their projects. At first sight, Arduino Yun looks like an Arduino Leonardo + Ethernet + WiFi, but not like the old Arduino Ethernet or Arduino WiFi. In this case, Arduino Yun controls the I/Os with the well-know ATMega and use an ARM processor with Linino (Linux Distribution similar to OpenWRT) to control the communication protocols like Ethernet, USB and WiFi). Both (ATMega and ARM) are connected by two interfaces (SPI and Serial).

    What is the difference with a Raspberry Pi?
    The ARM processor is more limited than in the Raspberry Pi. Arduino Yun works at 400 MHz instead of 700 MHz and doesn't include a GPU, so many applications like Media Center, Web Server, File Server can not be work with Arduino Yun properly. The purpose in Arduino Yun is to manage the network using the ARM processor, not the I/Os. You can create scripts and small apps in Linux to parse data and communicate with Web Services through existing APIs. Once Linux has made the "Hard Work", it sends the managed data to the Arduino using SPI or UART.

    Could it be compared to a Raspberry Pi then?
    Yes and no. It depends of the use. If you need time control or PWM applications, Arduino Yun is the perfect tool for you, but if you need  to control a device through USB, basic I/O connections, to run a web server or to use a GPU, then Raspberry is cheaper and more complete. Both, Raspberry Pi and Arduino are two powerful devices in the market. Each one has their followers and supporters. Raspberry can be used like a PC and also use the GPIOs for wireless communication or even the Arduino Shields. Arduino Yun doesn't compete with Raspberry Pi in the first feature (miniPC, web server...). The second one (GPIOs) is where Arduino Yun can fight.

    Arduino Yun will be released next month. We expect to get them in our site and we will do a detailed review about this new Arduino.

    Cooking Hacks Team.

  • Fake bathroom window using ArduinoMay 28, 2013


    Are you a student living in a closed dorm? Ever wished for a window on a blank wall but maybe the house owners would not allow you to build? All of you would have seen tutorial about moodlamp with RGB LED strips and Arduino. This seems to be the perfect application for it.

    For this tutorial the maker used Superlight LEDs and an Arduino which provides an effect directly corresponding to the preset daytime light outside.
    Arduino time library is the core of the project.

    For a very detailed tutorial on how to make it by yourself at home, head here!

    Via and source: Arduino Blog

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