A look back at some items in our archives.
This kit for the 2008 class included materials for scratch assembly of sensors, a CUI board running uOSC and a few tools such as scissors.
The majority of acceleration/tilt sensors used these days are single integrated circuits MEMS devices. The cheap ones are made for air bag and other high volume applications. Although the chips are cheap ($5-10 Retail,<$1 in quantity), they are usually sold in surface mount packages that are inconvenient to work with without industrial quality tools.
Most sensing applications of e-textiles use switching, piezoresistivity or optics for direct touch sensing. This instructable shows you how to start exploring another approach - capacitive sensing to measure touch and proximity. It is based on the easy-to-use, cheap capacitance sensing chip evaluation board from Atmel/Qtouch and takes only minutes to create.
Because of the inherent limitations of visual feedback in a single color LED matrix (Monome), I’m starting work with
Adrian on developing an RGB Monome with pressure sensitivity. For now, I’ll focus on the multiplexing/de-multiplexing
process.
We chose the SparkFun button breakout available here:
This is a strong fast and connection for prototyping with the Lilypad.
Dismantle 3 Gametraks and remove the pair of joysticks in each.
Ream out the paddle hole to match the diameter of conductive chord you selected for the strings. I used standard chandelier wire which required a slight enlargement of the hole.
Install the joysticks on the bridge, according to the height and string spacing you have chosen.
Drill the holes in the bridge to pass the chord through.
This digital multimeter is useful for evaluating textiles and thread for conductivity and electrical resistance.
Because each colored led have a different forward voltage different "scales are provided", Blue is good for low resistance,
Green for middle, and red for higher resistance.
This is a variation on Hanna Perner-Wilson's Fabric Tilt sensor.
A collection of different light sensors attached on a breadboard.
This is an inexpensive way to turn any surface into an input device that senses the x & y position of multiple simultaneous touch points. The hardware necessary is easy to find online by following the links below, or at a well stocked electronics store: a webcam, two mountable lasers, a power source for the lasers, and something to prop up the camera with.
This color synthesizer uses finger pressure to control brightness of each color of an RGB Led array. It was designed to illustrate that fabric and organic conductors can handle high current levels with modulations of low resistance values and some geometric variations that exploit switching materials.
Monday, April 20, 2009 Basic review of Audiosculpt Preferences --- set new home folder and sound folder for audiosculpt outside of application folder FFT analysis window size larger the window size the better the frequency analysis and the poorer the temporal resolution FFT analysis, window size, hop size added "markers" to a sound file "generate markers" Marker Analysis Parameters Transient Detection Settings Threshold (trial and error, but lower the number the greater the sensitivity i.e.
