DIY Electronic Synth

Overview / Notes

I've been using mozzi to make a synth.

I did this: https://www.instructables.com/Arpeggiating-Synthesizer-Mosquito-I/

(code: https://github.com/analogsketchbook/mosquito_one/blob/master/mosquitoI.ino )

https://sensorium.github.io/Mozzi/

simple examples: https://sensorium.github.io/Mozzi/examples/#01.Basics

something simple:

https://sensorium.github.io/Mozzi/examples/#01.Basics

IUt was easy enough with the Arduino UNO . It has a DAC

I have a several; esp32 c3 which do not have a dac, and so I ask is a DAC requisite?

I need to learn some.

I'm reading:

https://diyelectromusic.com/2024/05/07/selecting-microcontrollers-for-music/

to to / read:

https://diyelectromusic.com/worksheets/

https://github.com/lucidbeaming/Camel/blob/master/camel-sample.ino

challenge: finding an Arduino with a DAC or just general mozzi support

• ESP32 originals have DAC, but not more recent more wide spread "dev" boards :(

• Teensy 3.X had DAC, but teensy 4.X , the currently available ones do not.

• my fav arduino pro mini doesn't as far as I can tell.

Maybe just bolt one on?

To read: https://projecthub.arduino.cc/Arduino_Scuola/build-a-simple-dac-for-your-arduino-5b72f5

https://diyelectromusic.com/2024/03/19/esp32-and-mozzi/

Arpeggiating Glitch Synth Mozzi Mod By Turbogoblin/Nugetteero

ESP32 + MCP4725

parts:

• ESP32-c3-wroom-02
• MCP4725

simple: https://sensorium.github.io/Mozzi/learn/introductory-tutorial/

so the challenge here is that mozzi support a i2s DAC, but MCP4725 is I2C dac.

google group chat with some good data

Bandwidth of Uno+MCP4725 DAC

explaination about Mozzi Custom interface to external DACs or other hardware

• MCP4725 and Mozzi
  • Part 1 https://diyelectromusic.com/2020/09/28/mcp4725-and-mozzi/
  • Part 2 https://diyelectromusic.com/2020/09/29/mcp4725-and-mozzi-part-2/
  • Part 3 https://diyelectromusic.com/2020/09/26/mcp4725-digital-to-analog-converter-part-3/

steps:

1. prove that the DAC is found MCP4725

use Esp32/esp32 i2c scanner

changes i2c pins:

#define I2C_SDA 5
#define I2C_SCL 4

found device at address 0x60

reference / other folk

• https://www.notesandvolts.com/search?updated-max=2017-12-29T12:00:00-05:00&max-results=7&start=7&by-date=false