Using TLC5940 with a power supply (12v transformer+ LM7805), and, 70 LEDs

The Motor and Light Connector

My floor will control the rotating effect of my ceiling sculpture. However, before designing my pad, how I can make my light rotate without twisting its wires is a big problem. After discussing with my cousin, a professional machine designer, PC_Wang , he designed the motor and light connector for me. Itconsists of two bearings, carbon brush, and a gear motor. It allows my LED sculpture to rotate without the problems of twisting wires. The image below is sample.

After solving the crucial problem, I am working on my floor pad. The principle of how my floor pad works is pretty similar to the DDR (Dancing Dace Revolution) dancing pad. There will be a form between tow conductor layers. There are several holes on the very thin form. When people step on it, the conducting part will influence the result on the screen. The following images showsa DDR dancing pad which is taken apart.

Based on the same principle, I will make a floor pad which has the same function. It will allow the dancer to control the rotating effects of my sculptures. The flowing videos shows my teacher and I testing the floor pad.

In the video, different parts of the pad can control the different lights on the screen

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These days I am testing the LED driver. The first video is using 5940 LED driver chip. The code and circuit for this was developed thanks to Peter. Please visit Peter’s blog. There is a very clear description.

Test 1: Using LED driver chip with 16 LEDs

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Test 2: Using LED driver chip with more LEDs

note:

Step 1: I finally have a studio space!! (I love PRATT!)

Step 2: Painting drywall tracks and studs.

Step 3: Building a hanging ceiling system.

Step 4: Marking the Floor.

Step 5: Hanging my flower-like sculptures.

Step 6: My favorite part… Designing my chair cover = simple = easy = pretty.

Special Thanks:

Peter Patchen, Maowei, and, Joe Herzfeld

*Reading Arduino’s Serial.print(data) in MaxMsp

Example:

In Arduino, we can turn on the serial monitor to print out the values. However, how can we keep monitoring the values in MaxMsp? J Let’s try.

Arduino:

Set the value and use the function Serial.print();

Serial.print(” “); //This will create a space between each  value.

Serial.printl(); //This start a new line for vales.

MaxMsp:

Using “metro” object to start printing the values.

Using “serial” object to read and receive data from serial port.

Using “itoa” object to translate the integer to ASCII characters?

Using “print” object to get the same monitor effect as Arduino

What’s the difference between Arduino’s Serial Monitor and Max?

1. In Arduino, the value ,168, is printed on one line. In Max, each character is printed on a line so 168 prints on three    line.

2. In Max, Serial.print(” “); is printed as a empty line.

For example:

aread:

3. In Max, Serial.printl(); is printed as two empty lines.

For example:

aread:

aread:

Thoughts:

The above example helps me to know what the serial port is reading when I use MaxMsp to give my Arduino port some information.

Thanks Liubo

Resonant Wave is an interactive artwork which combines a ceiling installation and an experimental flamenco performance. It attempts to represent the invisible movement of air and the indistinguishable vibrations of sound with the interaction between the dancer and the installation. The form of the installation is inspired by the shape of a wave and a sweeping shawl. It consists of thirty individual pieces. Each piece includes LEDs and a geared motor. In the beginning, the installation is motionless and dark. According to the dancer’s positions, each piece will rotate. Also, according to her location, if she does some hand clapping and foot stamping, some groups LEDs will light up. The dancer’s performance will gradually lead the audience to observe the various interactions between the space, dancer, airflow and sound. <