Adelle Lin and Matt Pinner built Star Catcher, a cooperative virtual reality game, installed at Play NYC.
Players with nets move around the universe catching falling stars from the glowing ceiling. With each star caught, a new star is added to a constellation in our sky. These luminous Falling Stars have a romantic relationship with us on earth. Catching them has fun, playful, hopeful, and energetic effects.
The stars are suspended from the ceiling from strips of LEDs, each with a traveling light that represents a falling star. Players hold a net with a location tracker installed that they use to catch the falling stars. A projector is used to project a galaxy on the wall which is slowly filled with constellations as stars are caught.
This module is packed with both hardware and software features. The Ornament & Crime web site has great information on how to build your own as well as documentation on the firmware available. You can find the software and hardware details on GitHub.
Eric Betts was inspired to help decorate a Simpson’s inspired drink station at his office so he created Moe’s Phone – a modified 90’s (or maybe 80’s) era phone that plays Bart Simpson’s prank calls each time the receiver is lifted.
Picking up the receiver plays a dial tone, followed by the dialing of the phone number for Moe’s (it sounds like someone hit the ‘redial’ button). Finally, a random clip starts playing. You can hang up at any time to stop the clip, and the line goes dead when the clip finishes. Small touches like that added a lot to the experience.
Mauricio Bustos was part of a team that built seaGrass, an interactive LED sculpture.
This beautiful, interactive sculpture has 30 30′ illuminated towers. Each platform structure has a Teensy that is used to read capacitive touch elements that were used as inputs to change the light patterns. There are 50 addressable LEDs in each tower structure surrounded by a diffusion shroud to make the lights appear as a continuous light band
This video shows seaGrass at BurningMan.
The electronics that create the magic of seaGrass.
This DIY project is based based on a Teensy 3.6. The teensy generates 40 kHz packets and uses it’s own ADC ( after a two stage amplification) to measure the received packets and their time of flight between two ultrasonic transducers. The wind speed is directly deduced from the measured speed of sound.
A PID control system achieves tilt stability. Tilt angle is calculated from sensor fusion of LSM6DS3 accel/gyro readings passed through an Extended Kalman Filter. Propulsion is done with 3A stepper motors with CUI AMT10 encoders for wheel position and velocity. Steppers were used for their high torque at low RPM and zero backlash, so near flawless stand-still response is achieved. The Kalman filter, LSM6DS3 anti-alias filters, and in-code butterworth filters mitigate the mechanical vibration effects of the steppers.
This test video demonstrates near perfect stand-still response.
The second test video demonstrates motion control while maintaining balance.