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Author Topic: Arduino Theremin/Synth  (Read 1208 times)
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Hi All,
    I made a combination Theremin/Synthesizer for my sister, who's a musician, and I'm pretty happy with the way it came out.  It has the following features:

  • Four octaves of continuous pitch variation by moving your hand nearer or farther from an ultrasound sensor
  • Digital volume control
  • Continuous waveform variation–can generate a pure sine tone like a classic theremin, or one with overtones, which sounds like an 80's synth organ.
  • Spectral glide–similar to a Wah pedal or the instrument used in Peter Frampton's 'Do You Feel Like I Do'
  • Decay/Sustain–envelope shaping to play notes
  • Distortion–sounds like the guitar effect.
  • Blue case lighting with 'heartbeat' effect

It's powered by a 5V/16Mhz Arduino Pro 328.  Pitch control is done with ultrasound, the other effects by controls which move an LED nearer or farther to a photoresistor.

I've done a pretty extensive write-up of the hardware and software on my blog, might be helpful for someone who's working on a similar project.

http://blog.wingedvictorydesign.com/2009/06/20/arduino-thereminsynth-final-walkthrough/

 smiley
Max

« Last Edit: June 25, 2009, 08:52:52 pm by ohnoezitasploded » Logged

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Man, that looks awesome! I should build something as a gift too, so I am forced to build a nice housing as you did...
And the features sound great as well!
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Very nice work on the housing!
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Bookmarked your eclectic blob.
Keep up the good work!
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