Interactive Window Installation, progressing beyond the Max/MSP solution
After our post a few weeks ago about a new interactive window installation, we had some interesting and helpful suggestions, but one email in particular stood out.
Paul Anderson wrote to us briefly with an offer to help and after a quick introduction of his incredible depth of knowledge of all things electronic shortly thereafter, he showed up yesterday with the sensor pictured above. Basically, it’s used for industrial automation and I can’t recall the name of it, but see that red light, that’s the important part.
Pictured above, Paul is holding up this device to the window on the inside of CIVIC SPACE and our artist-in-residence, Sam Lefort, places her hand on the window from outside, and that little light turns from green to red. I can’t recall exactly what it’s detecting (I’m hoping Paul can fill in some blanks in the comments), but essentially by dialing in the right sensitivity, you can get this thing to act as a trigger when someone’s hand is in front of it through the window. This gets us past trying to use computer vision in Max to detect the presence of a hand, which would have run into some challenges dealing with the range of lighting conditions we deal with at the window (pictured below).
Still assuming that we’ll use Max to record the audio (as Stephen had suggested in the comments) and add some other useful automation like date/time, possibly some early EQ or amplification, and maybe even setting this thing up so it will tweet us when it’s recording and automatically upload it to our servers, or maybe something else entirely.
Anyways, I’m confident in saying that I’ve never been so excited to see a little red light turn on.



![Sites of Apology / Sites of Hope: the Map Not exhaustive, nor complete, this map is a work-in-progress, documenting a community in-transition. For one afternoon in February 2010, we gathered together with a group of community members to create two distinct lists: Sites of Apology and Sites of Hope. The locations identified as part of these two lists were noted as being places for which [...]](http://d1ugx41kvdwavn.cloudfront.net/wp-content/uploads/2010/08/IMG_3444-150x150.jpg)
![SRSI, Day 12 &13: Tactics, Presents and Garden Party Plans Lea Bucknell arrived from British Columbia to take over the window display of 424 Pelissier, Andrea Carvalho sent pictures of her last tactics in Windsor from Montreal, and SRSI participants get a surprise gift from a local fan. During the last few days of Andrea’s residency, she performed public interventions at bus stops and inside [...]](http://d1ugx41kvdwavn.cloudfront.net/wp-content/uploads/2010/06/DSC_0660-150x150.jpg)
![Regret/Resolve: Exhibition Planning Yesterday morning Rosina and I went to the Art Gallery of Windsor for the install of BCL’s piece that is going in the Border Cultures: Part One (Homes, Land) along with some other great artists. The show is opening next week on January 25th. We spent the majority of the remainder of day planning for the [...]](http://d1ugx41kvdwavn.cloudfront.net/wp-content/uploads/2013/01/wpid21140-IMG_2187-150x150.jpg)
![BCL Report – August 29, 2008 The last Friday we had before the upcoming Dance Party and Seedbomb Demo… We now have flyers, seedbomb containers, seedbomb germination (in the wild), and tea container labels. Michelle begins the process of spraying 50-something flyers after expertly cutting out the detailed info of the party. Many, many flyers (I like the silver ones the [...]](http://d1ugx41kvdwavn.cloudfront.net/wp-content/uploads/2008/08/Broken-City-Lab-Friday-August-29-2008-stenciling-origami-seedbombs-150x150.jpg)
![Things Worth Saving Recap Though we’ve received a few of the postcards back because of a faulty address, for the most part, the 150 postcards sent out for Things Worth Saving, as part of our ongoing Save the City project, have likely now arrived to their destinations. I must admit that when I first laid eyes on the stacks [...]](http://d1ugx41kvdwavn.cloudfront.net/wp-content/uploads/2010/05/IMG_4651-150x150.jpg)

![Drifting Around Downtown Windsor: Exploring the City Slowly We’ve been lucky over the last week or so with some surprisingly agreeable weather. The had humidity lifted and with it, the temperature scaled back considerably. So, it’s been pretty much the best time all summer to do some exploring on foot (and sometimes on bicycle) at a pace that really allows for a different [...]](http://d1ugx41kvdwavn.cloudfront.net/wp-content/uploads/2010/08/IMG_0404-150x150.jpg)
![A Look at Process: building for CAFKA & designing for HFBC We’re playing catchup. Between vacations, short hiatuses, and our summer schedules, we’ve been busy. However, getting back together, working together again on a more regular basis, and starting up on these projects again has been so great and incredibly rewarding. Our to-do list above is a small start to all of the projects we have on [...]](http://d1ugx41kvdwavn.cloudfront.net/wp-content/uploads/2011/07/IMG_0359-150x150.jpg)
![Installing at Forest City Gallery We spent the weekend in London, Ontario. We were installing for our upcoming exhibition at Forest City Gallery, while also briefly wondering about what it would be like to not do site specific work. Anyways, you should plan to come to the opening on September 9th! We’re working on an installation using our “…and then the city” [...]](http://d1ugx41kvdwavn.cloudfront.net/wp-content/uploads/2011/08/IMG_0548-150x150.jpg)
![Fence Text + LED Soldering Broken City Lab Office Hours last night were hugely productive due, in no small part, to the many amazing people around the table last night. We completed a test with the flagging tape at Lebel (as you can see above) for the EC Row project and continued working on the LED sign. There’s lots of [...]](http://d1ugx41kvdwavn.cloudfront.net/wp-content/uploads/2009/01/img_2316-150x150.jpg)
![Monday in the Studio: Rubber, Plaques, T-shirts Mondays always seem to be the best studio days. Maybe it’s because the weight of the week hasn’t set in, or that the last Thursday is just far enough away that we’re motivated to try to get more work done. Whatever it is, yesterday was a particularly good example of getting things done at CIVIC [...]](http://d1ugx41kvdwavn.cloudfront.net/wp-content/uploads/2012/12/wpid20679-IMG_3069-150x150.jpg)
![City Counseling (Session #1) Last night, in front of city hall, we had a conversation about the ways we want to shape our city. In the midst of rising tensions around existing city services and new infrastructures, there seems to be a renewed wish for not just more public dialogue with the city, but a dialogue based on transparency [...]](http://d1ugx41kvdwavn.cloudfront.net/wp-content/uploads/2011/06/IMG_0088-150x150.jpg)
![Eric Boucher Micro-Residency Iteration 4/5 For part 4 of Eric Boucher’s Micro-Residency, we trekked all the way out to Harrow to interview my good friend, and local musician, Derek Harrison. I met Derek way back in my first week of University and became friends very quickly. Since that first semester in Windsor, Derek has been leaving Windsor left and right, [...]](http://d1ugx41kvdwavn.cloudfront.net/wp-content/uploads/2009/12/derek-150x150.jpg)
![Maps + Final Cut I’ll be spending most of the week finishing up a couple lingering parts of Save the City: assembling the maps for Sites of Apology / Sites of Hope and putting the final touches on the edit from Listen to the City that Danielle assembled. The audio documentary is going to be an overview, or maybe [...]](http://d1ugx41kvdwavn.cloudfront.net/wp-content/uploads/2010/08/IMG_3075-150x150.jpg)
![SRSI, Day 29: It’s The Last Friday Friday was the last open house for SRSI. Norman Eberstein read some of his log entries written during his job, Emily made some amazing snacks for us, Kero busted out his Lemur, and Laura did another payphone intervention. Norman was feeling not quite himself on Friday morning when he came in. He got his nose [...]](http://d1ugx41kvdwavn.cloudfront.net/wp-content/uploads/2010/07/DSC_0873-150x150.jpg)
![Talking to Walls: A Conversation About the Public Realm Thursday night Cristina and I were up in Toronto at Propeller Centre for the Visual Arts, participating in the Christopher Hume curated exhibition, Public Realm. We did a series of projections with short texts / fill-in-the-blanks that dealt with issues of public and private space, which were generated from the answers to the questionnaires we [...]](http://d1ugx41kvdwavn.cloudfront.net/wp-content/uploads/2010/01/IMG_8787-copy-150x150.jpg)
![Recap of the Letter Library Opening Event! It’s been an incredible few weeks prepping for the launch of CIVIC SPACE and the Letter Library. Huge props to everyone who helped out, especially Kiki Athanassiadis & Lucy Howe! There’s a few hundred letters strewn about the space, waiting for you to takeout and caption the city. Stop by over the next few weeks — [...]](http://d1ugx41kvdwavn.cloudfront.net/wp-content/uploads/2012/06/wpid18599-IMG_0310-150x150.jpg)
![Exploring Philadelphia & Public Talk with Mural Arts & Philly Works We’ll be visiting Philadelphia to explore the development of short- and long-term projects in collaboration with the Mural Arts Program and community organizations in the city. During our visit, Mural Arts and Philly Works will be hosting a public presentation of our work, and a stimulating conversation about how artists can engage people in conversations [...]](http://d1ugx41kvdwavn.cloudfront.net/wp-content/uploads/2012/11/philly-150x150.jpg)
![First 5 Text In-Transit Panels Installed Last night Danielle and I went to the downtown Transit Windsor terminal to install the first five test panels we had printed for Text In-Transit. The panels read: everything is possible, YOU MADE MY DAY, YOU ARE THE CITY, YOU CHANGED EVERYTHING, and changing the world starts by changing this city. We had to install [...]](http://d1ugx41kvdwavn.cloudfront.net/wp-content/uploads/2009/04/img_9143-150x150.jpg)
It detects a change in capacitance. Basically, when you have two conductive things(like a hand and a metal plate) separated by an insulator(like glass), it can store charge. This is similar to the way a balloon stores static electricity. The capacitive touch sensor uses an oscillator, a capacitor and inductor ringing like a bell. If you change the shape of the bell, you change it’s frequency. The same applies to the oscillator used in the sensor. The presence of the hand adds capacitance, making the frequency the oscillator is ringing at change. It detects that change and uses it to turn on a switch.