This was a lecture on May 31st. The Team of the Medialab Prado flew in Ruth Sergel from New York in order to tell us about the media-techniques magican’s have been using for ages. I enjoyed the lecture a lot, to me it show the close relationship between art, magic, and people not understanding the technology used:
Author Archive for Emanuel
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After a series of set-backs in the electronics department of our project, we can celebrate a big step forward today. Most of the electronics are working, all that’s left to do is to increase the power to trigger the cameras in order to overcome the long distances of the extension cables – hurray!
Simone showed me two more really helpful things: what you can see here is called wire wrapping. It’s a technique to create circuits w/o soldering, and it looks great ;) You have to use wrap pins that you simply beat into the board, then you use a little stick to put the wire around the pin, which is actually faster done than soldering.
Also Simone showed me a kind of “Bible” for people hacking around with circuits: The Cmos Cookbook. This seem to be really useful, it contains all cmos components available including description, picture and explanation how to connect them.
Los compañeros walking off the medialab after a hard work’s day…
right into a opening of an exhibition:
I like the way the spanish guys handle their inaugurations ;)
Day 5: nothing but ill. Day 6: great.
We finished all the mounting pieces and found a place inside mataderos where we can set up the installation and leave it there untouched until the end of the workshop. The only minus-point of the day: all the cameras have 2b rewired, electronics don’t work as easy as we thought: It’s not possible to just wire all the release-switches parallel – every one has to have it’s own opto-isolator plus pull-down resistor attached to it. Karolina is actually going crazy resoldering all the switches, cameras, resistors and opto-isolators…
pictures of the day:
Ok, here’s a fast endorse of the last days. Karolina and Sofy continued soldering all the cameras, i think they are finished in the meanwhile. We finally figured out how we’ll handle the mounting and the adjustment of the cameras and found a really great place to produce it: the woodshop of Mataderos, another project of INTERMEDIÆ Madrid. There’s an opening of an exhibition tonight, i’ll do a special post about it – that place’s definetily deserves it. As a preview you can check out the photos on Flickr tagged with Mataderos
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The workshop is great, i love the media-lab and everyone involved. I actually never experienced a space that was so open for each and every one – just one thing: the upload capacities are really_____ bad. that doesn’t make my life as a documenter easier – as well as the fact that everyday somebody is leaving and we have to go out to have one (of course one more..) last drink with him/her. Luckily not so tomorrow, i’m dead tired, can’t manage 2 write about our project which is doing really well btw… my camera deleted all the photos and videos from yesterday&night which is really a pity – there were some nice shots… anyway, i’m gonna make it up, later… good night..
Honestly, i missed the first part – i just arrived when the first example was finished: basically the job was to change the blinking frequency according to the value received by the potentiometer (or any other variable resistor) => arduino file
So now we’re starting to use the arduino to pass values to processing and change the displayed image. Therefore we change the ” Serial.println(inputPin)” which would print the received value and change it to “serial.print (val,BYTE)” which will sore the received value in a Byte (0-255) which can then be read by processing. In processing we us this value to define the parameters of a rectangle in processing. => arduino file => processing file
Today’s Lesson was about the IF :lol: – ELSE :sad: command. The physical example we used for that was:IF you turn a potentiometer underneath a certain vale, make the LED blink. To keep things easy we used pin 13which has a resistor built in to let the LED blink. I wanted to make things a bot more spicy and also make use of the ELSE IF and ELSE command, so i decided to make a wiring wiith a second LED on pin 12 that work like that: If the value received from the potentiometer is below 100 let LED1 blink, if it’s between 100 and 300 let LED2 blink, if the value is above 300 switch both LED’s constantly on.
Today Code: Continue reading ‘Arduino Workshop, Part 3’
We continued to open up all the cameras and wired them in order to turn them all on and release the shutter at the same time. Also we wanted use a dip-switch for each camera to still have control over every single camera on it’s own. That’s when things got tricky, because when you wire all the switches parallel you connect all the cameras as soon as you make a connection at an point. But that was only the beginning: We had our first “Critiques” appointment and hey all let us know that they don’t believe we can make the project the way we think.
What followed then was good and bad at the same time. On the on hand some reactions were like: “Yeah, well, i didn’t get your project of all – but why don’t you go for this or that instead..”, which was more annoying then helpful, because at some point i had the feeling that some critiques just wanted to push the project in the direction that they felt like at the moment… On the other hand it was really helpful because we figured out a way to make a mounting that’s actually realizable and gives us the possibility to fine-tune the adjustments a little bit within the “fixed” camera.
Oh well, 2morrow is another day let’s see..
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