Stop culturele kaalslag
September 21st, 2010Super Mario brick
May 21st, 2010For the Super Mario brick I used a Super Mario sound drop keychain (from a space oddity in Amsterdam).
These sound drops do actually have four sounds but only one is exported to the outside using the big front button. Once opened up you can see four pairs of pads of which one pair is shorted, that is the current sound under the button. The sound is activated by pressing the button which provides the chip with power.
With the pad desoldered you can choose which sound is played by shorting a pair of pads and pressing the button.
For the Mario brick we want to use all four sounds but play them randomly with a weight on the coin sound. To do this I use a 4017 decade counter. When a button is pressed the counter counts with a high frequency (~150KHz). As soon as the button is released the the sound drop is activated with the output the counter stopped on. In order to get the weighting 5 outputs of the counter are joined together and activate the coin sound.
All together the circuit draws 0.1mA of current when idle, 2mA if the button is pressed and 25mA when the sound is played.
Together with one of those cheap wireless doorbells I got myself a nice doorbell :-)
Cutout circuit boards on instructables
June 15th, 2009Apparently Nadya Peek and I were on the same track around the same time :)
Here is her nice instructable on how to make circuit boards using a vinyl plotter:
How to make circuits with a Roland CAMM sign cutter
I prefer to solder the circuit while on still on it’s original backing as the thin fabrics I use melt very easy.
Cutout Circuit Board
June 7th, 2009Just a repost of my previously posted fabmoment.
For a project at the V2_lab we had to develop a transparent touchpad in textile. For this we needed to create circuit boards that are thin, small, easy to mount on a textile substrate and more or less flexible. To create such a circuit board we started to experiment with cutting copper foil on the CAMM-1 at Protospace fablab.
Thermochromatic two pixel display
May 21st, 2009[flickr video=3308870160 w=240 h=192]
An experiment making a two pixel display using a sheet of liquid crystal thermochromatic ink and nichrome wire.
The pixels are controlled independent from each other and switched consecutively. The total current drawn is approximately 80mA independent on the number of pixels.
The metal ring on the left is there just to keep the autofocus of the camera focused.
Posted from JoSoS on Flickr: Thermochromatic two pixel display
Tweet Bubble Series
May 21st, 2009We finished the tweet bubble series for Aram Bartholl residency at V2_. The residency results have been presented during V2_ TestLab: Fashoinable Technology. Below the original post from V2_lab blog:
The Tweet Bubble Series consists of four wearable speech bubble prototypes developed in collaboration between artist Aram Bartholl and V2_Lab.
All four prototypes reflect on the micro blogging service ‘Twitter’; a relatively new Web2.0 platform that fills up the gap between blogging, instant messaging, and SMS. All messages posted on Twitter are public by default and stored as single HTML pages. Due to Twitter’s growing success, the platform is about to become a standard communication tool. The way in which Twitter is used to communicate within a social network is largely shaped by the absence of physical proximity between users and the relative anonymous social exchange that the platform allows. To deeper investigate into the role of this absence of physical proximity and relative anonymous exchange in the use of Twitter, the central question to the wearable speech bubble prototypes is: What would it be like to not only show your latest message online, but to also publicly display it on your T-shirt?
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Wearable Sound Experiment
May 21st, 2009The 16th and 17th of May V2_ Institute for the Unstable Media held a 2-day workshop on wearable technology lead by Mika Satomi and Hannah Perner-Wilson aka Kobakant.
After the workshop introduction and meeting round participants were split up into two groups to distribute the wide variety of skills. The background of participants was broad (ranging from industrial designers to fashion designers to hard- and software developers). As the average knowledge of the participants was quite high, the goal of the workshop was ambitious: create a performative sound experiment.
Wireless RFID
April 24th, 2009
Finished my wireless RFID set, from left to right:
- Desk reader/writer (non-wireless)
- Receiver (receives the IDs send by the transmitter
- Transmitter (reads and immediately sends RFID tags over a 433MHz radio link)
Sharewear on Dance Tech Interactive
March 17th, 2009Sharewear on dance-tech
@ Eyebeam’s Mixer 09 party expo, March 07.09