Theremin Sensor Application
Out of fun and interest, I built a Theremin-like instrument, being played entirely touchless with both hands. The idea was to use simple distance sensors with a digital output to do the audio synthesis on a computer. This allows for interesting and fun ways to tinker with the instrument, such as “auto-tune”, different audio waveforms or multiple tones at the same time.
My Theremin-like instrument with its periphery
The hardware part is really easy – two Tinkerforge ultrasonic distance sensors are connected to a master brick, which directly communicates with the computer via USB. USB foot switches can be used to trigger specific effects.
On the computer (e.g. a Raspberry Pi), an application manages the instrument by:
The application’s UI in action
If you are interested in building such an instrument for yourself, visit the manual page.
If you are interested in the process of how I developed the whole thing, visit the blog page where I explain it in detail.