Posted tagged ‘arduino’

BeatBearing and more electronics!

February 20, 2010

The title should probably be the other way around as I’m going to mention the electronics bit first.  I am really trying to figure out exactly what I’m going to need for my proto-typing for my next personal deadline. It’s dawning on me that this is way out of my comfort-zone. I don’t know where to start. However, I have come across some friendly and mostly helpful people so far and I’m hoping that will continue to be the case.

Leon Barker (PhD Student at SCIRIA) will be in uni again doing workshops in a couple of weeks on Arduino circuits and the like (I hope!). I have looked up bits of info randomly here and there about equipment and materials that I may need for AC lighting manipulation (which is really dangerous and so I’m slightly scared) and I’m also trying to find some pressure sensitive mats. The ones at Maplin seem to be very basic and have a switch for an open or closed circuit. This means there can only be two states and therefore two conditions for me to work with. I guess this could potentially do the trick depending on how I set up the lighting. An alternative is to project light on to my work instead of illuminating it from behind. I think both could work. Maybe I’ll need to use both anyway. But that’s another thing I won’t know till I’ve tried it.

I can’t believe how much there is to think about! I’ve had to stall on the sculptural aspects of the work for now as I fear the electronics will take much longer and is a higher hurdle. I did find some interesting acrylic materials but none of these would be suitable for what I need. I also found many steel.aluminum suppliers and cutters but they are very industrial based and so charge huge amounts for bulk amounts (can’t afford it and don’t need that much anyway).

So anyway while looking up these things I came across Peter Bennett’s work on YouTube. He is a PhD student at the Sonic Arts Research Centre (SARC) at Queens University Belfast. His current work can be read about and viewed on this site: http://www.sarc.qub.ac.uk/~pbennett/index.htm But I really want you to see is this video which shows his BeatBearing project. You can figure out how it works just from watching:

The cool thing is Peter has used Arduino and Processing for BeatBearing and has made his code and methods available for others to re-construct and experiment with. More about this project can be read here: http://www.beatbearing.co.uk/index.html

And before I finish off this post here is another link to a video in which you can see Peter Bennett and Sean Toru’s Transparency in Digital Art installation. They’ve used processing as well as pressure sensitive mats to allow users to create and edit shapes projected onto the wall through their movement on the floor: http://www.youtube.com/watch?v=Yyc-zMKeI70

Hmmm – lots to think about!

Electronic circuits, Arduino and others

May 27, 2009

It must seem like I’ve been quiet recently but I have been doing stuff. ‘Stuff’ is probably the best word to use here because it is encompasses quite a varied group of ‘things’ as a description.

Here’s a break down of my recent activities:

Reading Digital Arts, by Christiane Paul: I was actually supposed to have done this at the start of the academic year as it was listed as ‘recommended reading’ but no one really does that right?

More Pattern making: some were failures – I started giving in and doing my own thing again but I pulled back and said ‘No Sara you must follow the rules’ so I went back to using my handy Islamic Design book and did some new patterns.

Remember doing this in school?

Remember doing this in school?

This one had potential but then I didn't like the way it was going

This one had potential but then I didn't like the way it was going

Another naughty pattern

Another naughty pattern

It’s always frustrating trying to get the lines, angles and circles in the right places but I persevered. Now I have some new patterns to work with to create some more laser cut panels. I want to do more complicated patterns to really experiment with light and shadow effects.

Back to following the rules

Back to following the rules

Underlying grid is easy to see in this image which looks quite interesting as a whole

Underlying grid is easy to see in this image which looks quite interesting as a whole

Hand cut pattern in black card

Hand cut pattern in black card

I’m pleased with this (above image) – even though it looks quite simple it took a while to get to that stage. The star shaped flowers are not accurate at all but I’ll be fixing that up when I make a digital version using Photoshop and Illustrator. I will probably add more detail to the larger shapes though, as I think details look better when enlarged with a light source on a wall – almost like a projection.Using this hand cut method allows me to get a rough idea of what the laser cut design will look like in mdf.

Visiting the Library: I rarely go to the library anymore. Not because I don’t like reading or even just looking at the pictures in books but because I prefer to have my own copies. That way I know I won’t find any unusual stains in between the pages, nor will I have to worry about returning it in time in order to avoid a fine. Anyway so back to the story at hand – I decided that forking out £26 for ‘Physical Computing’ by Dan O’Sullivan and Tom Igoe, was slightly beyond my current budget and it would make sense to just go and borrow it. So off I went to LCC and I’m glad to say no stains have been discovered as yet.

I’ll write a review on both books at some point.

Electronics/Arduino board workshop: Leon, a current Camberwell PhD student was doing this workshop for us last Wednesday (20th May). A brief overview of how it works was provided, as well as some useful links (http://www.arduino.cc/). I spent a good amount of time trying to familiarise myself with the different parts of the boards whilst putting together a set for infra-red detecion. Had to look up different types of resistors, transistors, and all those kinds of bits and bobs to make sure I was putting the right ones in the right places.

Arduino board image from arduino.cc

Arduino board image from http://www.arduino.cc

We then moved on to testing Isaac’s (fellow student: http://www.isaac.alg-a.org/) motor circuit which had a light sensitive resistor attached to it. This set was programmed to turn on an LED and start a motor faster or slower according to the light detected by it. The code looks quite similar to PHP and other complicated programming languages that I really need to start learning at some point. Or maybe I think they are complicated because getting to know it better is something I keep putting off and is almost my excuse for delaying the process?

Getting to know a circuit

Getting to know a circuit

My fear of learning this new but potentially hard stuff is not greater than my wanting to complete my project to a high standard.