Upsizing

Arduino Mega

Due to time constraints and resources our group began researching other methods of controlling a large number of LEDs. After trawling the internet I discovered the existence of the Arduino Mega. The Mega has 54 I/O pins which should be enough to run a 5×5 grid of LEDs and Earcons. Today in class Mikael pointed us in the direction of Nicholas Ward. Within an hour of us emailing Nicholas he arrived with the Arduino Mega. Scridb filter

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Multiplexed!

After taking a look into the technical aspects of our build we realized that the Arduino only has 13 outputs and we need 32. To over come this we have been researching a method known as multiplexing and charlieplexing. This approach allows us to regulate the 5 volts that the Arduino allocates to each pin on a clock to a number of LED’s using a shift register. Basically each LED is attached to one pin of the shift register and it is counting up to 8 bits and lighting each one incrementally. So fast that the eye can’t see the LED turn on and off. This is a very simplified explanation of multiplexing. Below is a video that goes into greater detail. below is an example of our attempt of using this method to light 8 LEDs from 3 Pins on the Arduino. We succeeded in doing this but it was very tedious and complicated with more the set up of electrical components over the programming aspect. With time constraints in mind we have decided to look into the Arduino mega.   Experiment Scridb filter

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Experimenting with Arduino

For the last couple of weeks Mikael Fernstrom has introduced us to the Arduino. We were given a basic kit consisting of the Arduino, Piezo sensor, a potentiometer, resisters, light dependent resistors and wires. Before we began attaching electrical components and programming the Arduino we were introduced to the fundamentals of electronics. We looked at measurements and schematics examples of a curcit layouts of different components e.g switches, capacitors, sensors etc. Once familiar with the logic of electronics the experimentation began. The first program manipulated the piezo sensor (normally a pressure sensor) to play a melody. Following that we re-appropriated examples given by the Arduino programming environment. e.g. to accept analog inputs and outputs, to change the LED blink rate using the light dependent resister and to change the LED blink rate using the potentiometer as a dimmer switch. Scridb filter

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8-Bit Classic

One of the large projects the iMedia class is undertaking is the contemporary art in the public realm waste project. The task is to change the publics attitude towards littering around campus. This could be an art installation or an interactive installation. Am example we looked at was BinIT.  This project consisted of a set of bins in Limerick train station. They had the ability to move and produce sounds independently. They would follow people who had littered around the station reminding them to place their rubbish inside the bin. They area around campus we chose was the living bridge. We discovered after interviewing one of the cleaning staff that it is a major trouble spot. He explained that the litter isn’t exactly visible as people passing by have a habit of throwing it over the bridges edge. After getting this insight we decided to visit the bridge ad document the bridge itself e.g. shape, length, foot traffic and amount of bins etc. We noticed there is not one bin on the bridge. Not even at the seating areas. With this information we chose to design a bin that attracted passers by to it. Maybe something with a visual rewards system that entices them to return or at least spread the word. The document above discusses our idea of our LED 8-bit Bin. We envision a bin with a small 8-bit LED matrix that attracts users. The 8 bit design will hopefully evoke a response from the target age group (18+) especially using matching chip tune earcons.  There 8-bit corresponding hanging display will have larger icons with a screensaver when the bin is not in use. Now to figure the build! Scridb filter

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Visual Thinking

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Today myself and three other classmates presented a seminar to the class as part of the Principals of Interactive Media module. Our goal was to discuss an area of the topic we have chosen (preferably an area that would help the final project) and give the class an exercise that would engage them and inspire them to use in their own projects to aid a better final result. The top we chose was Visual Thinking. I decided the area of paper prototyping would fit well into this area and   personally I believe it is a wonderful prototyping method. The flexibility and disposability of paper allows for ideas to change and flourish with cost and budget implications. Details of paper prototyping can be read in the supporting document below. Further research into the area can be found here on our wiki page.  Paper Prototype Report   Seminar Slides: Here are some examples of paper prototypes the class came up with: Scridb filter

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Explained teleconferencing system

Continuing on from “in a perfect world” this is an earlier version of the teleconferencing system. The video below goes into some nice detail of how the eye tracking works and how it is able to render multiple layers to get the desired effects. Again this is done with several depth cameras (Kinects)   Scridb filter

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In a perfect world

A First Look at a Telepresence System with Room-Sized Real-Time 3D Capture and Life-Sized Tracked Display Wall” by Maimone and Fuchs, ICAT 2011. 10 Kinect cameras were used for capture and 1 for tracking. Display is on two 65″ LCD panels. This system is a similar idea to my thesis idea. It basically pulls in the image that the kinect sees into a window like LCD panel. The person looking at the panel almost gets the sense that the rooms is right next to them, especially with the clever tracking system that changes the perspective of the room. Seeing the level of resources and difficulty involved in recreating this effect to suit may change the functionality of my project to a certain degree. I may explore creating a 3D environment where the users can customize their surroundings. Please View the Video Below.   Scridb filter

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The Issue of my Thesis

As part of the Interactive media In Society module It was required to explore an area, issue or domain that I would like to explore with my Final Master Project and Thesis. The goals of the project were: Describe the selected area With different perspectives in play Discuss actors, politics and issues that I intend to investigate Produce an info-graphic Please feel free to read my report below. Scridb filter

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