This speaker modulates audible sound on ultrasonic signal and send the modulated sound in a beam through the array of piezo speakers. The sound will be demodulated with the non-linearity of air itself and can be heard right in front of the speaker. The case is made by laser-cut cherry wood. A small laser diode is used to indicate the path of sound.
Branch Light is designed as a new form of mood light. Normally mood light is a single light or a light strip that you can not change it’s shape easily. This modular mood light units use magnets to connect each other so they can be rearranged easily. It is ideal for decoration under table or on vertical surface like refrigerator. The magnetic connection provides mechanical, power and signal connetion. (continue reading…)
Project made for Kyle McDonald’s 3D Sensing and Visualization class, ITP Fall of 2012. By Deqing Sun and Tak Cheung.
This first class assignment, we were asked to build a 3D sensor from scratch. The concept came from brainstorming what devices are available to detect space. Off-the-shelf sensors like a laser range finders can gather distance and implementing this within a matrix we can create a set of 3D data. We thought sensory inputs are also inherent in every living organism too. There’s a lot we can do with that concept like putting a GPS collar on dogs. Using their travel paths to scan out pedestrian sidewalks over time. We chose goldfish as they’re conveniently swimming in a 3 dimensional medium and for their bright color it’ll be easy for our program/camera to pick them out.
Plinko Poetry is a new interface for electronic poetic expression by Deqing Sun and Inessah Selditz, two Master’s Candidate students at NYU’s Interactive Telecommunications Program. Drawing source text from current @nytimes and @FoxNews tweets, players can absurdly re-contextualize news headlines that are often overloaded with meaning. (continue reading…)
This is a position tracking system. This system communicates with people’s electronic devices via Bluetooth protocol. Then visualize people’s location on screen in real time. (continue reading…)
AVR studio is the official development tool for AVR chips. Users can focus on programming rather than Makefile or configuring the tool chain. Also both the hardware and software simulation function is powerful and it is the only way for us to use the debugging tools to troubleshoot in real environment.
This is a tutorial of using PlayOnMac to run the AVR studio in Mac OS. The software functions pretty well. I haven’t tested the connection of the programming tools. (continue reading…)
Arduino has a built in function “tone()” to play sound. It is simple and efficient, while the only problem is the sound quality. The tone function uses square waves, which have only odd harmonics. This harp uses wavetable synthesizer to generate a 6-channel chord tone. The sound is controlled by the touch harp. (continue reading…)
Deploy App Engine for Arduino’s data logging. (continue reading…)
Arduino is easy to use. But it may be hard to debug. Here is a simple tutorial of debugging it in Proteus.