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Patrick Sébastien Coulombe’s Guitare à crayon project allows the user to create visual art and music with one instrument. The custom USB device makes use of Pure Data to generate sound and Gimp software handles the visual element. The feature list includes -

  • Accelerometer X-Axis (for example controlling the octave)

  • Accelerometer Y-Axis (for example controlling an effect)
  • 6 analog strings giving around 10 bits of resolution
  • External input: 1 analog, 1 digital
  • 4 positions switch
  • 8 buttons
  • 4 pots
  • 1 piezo with velocity filter (for example trigging any sound)
  • 1 ir distance sensor (+-6cm – +-20cm)
  • 1 unuseful led (for tapping the bpm)
  • Pressure-sensitive tablet
  • Foot controller (using a led & a photoresistor)
  • Foot switch (looper, change sound, …)

The maker is currently accepting donations to further develop the project. Relevant schematics and source available on the project’s site. [via Synthtopia]

Collin Cunningham

Collin Cunningham

Born, drew a lot, made video, made music on 4-track, then computer, more songwriting, met future wife, went to art school for video major, made websites, toured in a band, worked as web media tech, discovered electronics, taught myself electronics, blogged about DIY electronics, made web videos about electronics and made music for them … and I still do!