emmanuel63
Well-known member
Hello,
Here is another Theremin ! This one is very simple : a Time of Flight sensor for the pitch, and FSR for volume. The synth section is also very simple, just one oscillator, a LP filter, minimalist LFO and reverb. In fact, this project is designed for workshops, so it has to be simple. The core is a T3.5 that was feeling lonely in my junk box... I use the well known and so cheap PCM5102 as audio DAC. A small 5V class D amp is also included (PAM8403). These amps are difficult to use because they inject so much noise... but they are so efficient ! Real theremins are difficult to master. So I have programmed a "scale mode" to keep the intonation right.
This time, I will publish schematics and large part of the code. This will be done shortly (hopefully) on a dedicated website (see Youtube description).
Emmanuel
Here is another Theremin ! This one is very simple : a Time of Flight sensor for the pitch, and FSR for volume. The synth section is also very simple, just one oscillator, a LP filter, minimalist LFO and reverb. In fact, this project is designed for workshops, so it has to be simple. The core is a T3.5 that was feeling lonely in my junk box... I use the well known and so cheap PCM5102 as audio DAC. A small 5V class D amp is also included (PAM8403). These amps are difficult to use because they inject so much noise... but they are so efficient ! Real theremins are difficult to master. So I have programmed a "scale mode" to keep the intonation right.
This time, I will publish schematics and large part of the code. This will be done shortly (hopefully) on a dedicated website (see Youtube description).
Emmanuel