Blog Posts

Trees of Life Art Installation

Rick Van Melis created Trees of Life, a beautiful and interactive art installation that allows visitors to connect with the 2 trees and bring them to life.

The art installation features over 9,000 LEDs controlled by 8 Teensy boards using the Fast LED library. Each tree is a separate system. It has 6 hands and 12 ‘arteries'(LED-Strips) 2 out of each hand. These start at 1m50 and go 5 – 7,5m high.  Basically when untouched the tree and its arteries are in a restful idle animation. Users however were able to wake up the tree by placing their hands on the “hands of the tree” (hand shaped touch pads), when this happens the 2 arteries connected to the corresponding hand will start pulsating with ‘energy’.

Classic Organ Keyboard Interface

Pascal Leray has designed and built an keyboard interface for an amazing classic organ that he’s built.

Main board: dedicated to contacts or Hall sensor-based organ keyboards. Direct MIDI/USB output. This board has also a standard Parallel Port, fulle PC compatible. Up to 8 keyboards/pedal/knobs. Direct USB/MIDI output.

Interface board: can receive up to 64 digital or analog inputs. To be connected to the above board.

You can read about the organ project on his web page. (It is in French, but auto translation programs seem to work it)

Update:  Here’s a link to the English version of his web page

Beat Counter

Georg Ziegler built a pretty cool beat counter

Beat Counter counts beats and visualizes it using an 8×8 LED matrix by connecting a Teensy via MID to Ableton Live.

Stargazer Drone Machine

Ross Fish of Moffenzeef Modular has made an incredible drone synthesizer modular – The Stargazer.

STARGAZER is packed with features: dual wavetable oscillator with ninety arbitrary waveforms, two resonant lowpass filters, three wavetable LFO’s, sample rate reduction, bit rate reduction, amplitude modulation, and CMOS distortion. The expression pedal input can be used to control the speed of all three LFOs at the same time which free up your hands to control other aspects of the drone.   It’s also firmware upgradeable!

STAGAZER uses the Teensy Audio Library and is Ardunio compatible with code available on GitHub.


Computer Combination Lock

Eric Betts created a computer combination lock.

The lock uses the Teensy, rotary encoder, circular led bar graph, and the encoder library.  You twist the knob to the correct position as indicated by the LEDs, push down on the knob to set that value, and on the 3rd value the sequence will be checked against the first 3 bytes of EEPROM. If the combination is correct, “Secret Word” is sent as keyboard input.

The code for the project is available on GitHub.

Dodecahedron with LEDs and Infinity Mirrors

Neil Merchant has made a pretty awesome dodecahedron with LEDs and infinity effect.

The dodecahedron, named Carl, uses a Teensy 3.6, OctoWS2811 adapter, SK6812 RGB LEDs, and 1-way mirrors to make the magic happen.

Neil is planning to take Carl to different festivals.  It will be making an appearance at Electric Forest, Lost Lands, and maybe Ever After Fest.

You can follow the the story of Carl’s development on this Twitter thread.