The Auduino is a cool little project that is perfect as the first sound experiment with Arduino. It´s simplicity doesn´t make it boring at all and it´s capable of a wide variety of sounds.
It uses granular synthesis, which basically is a synthesis method that uses little sound particles or “grains” to generate complex waveforms.
As soon as I did some LED Blinking madness and a few Hello World!… I wanted to make some noise! so I looked on the net and found the Auduino project by Tinkerit, which is a very nice sounding simple and cheap Arduino Synthesizer.
Auduino hardware requirements:
- Arduino Board
- 5 Potentiometer – 4.7K
- Mono Audio Jack

Auduino is an Arduino based Granular Synth
I believe you can use other Potentiometer values if you don’t have exactly those values. There is a lot of comments and updates in the Arduino community, last time I checked the project someone had implemented MIDI functionality to use the Synth from a standard MIDI controller, which is quite awesome…
If you want to know more about the project or build your own Auduino, follow the link below to the Project site and get your Code. Make shure to check their Downloads section as they have many interesting projects.
Here in this video you can check the Auduino in action! I also provide with the RAW audio recording take that you hear in the video, recorded in 24Bits 48Khz for you to use!
Se pueden usar potenciometros de otros valores, siendo todos iguales obviamente? Si se puede entre que valores usarian aproximadamente? Gracias
Hola, en el circuito se muestran de 4,7 K, pero se pueden usar otros valores… por ejemplo 10K, aqui depende del arduino y seguro hay mucha información al respecto online.
Tampoco han de ser iguales, aqui dependera que sean logaritmicos o lineales, pero arduino medira la diferencia entre 0 y 1023 valores. Espero sea de ayuda!
Hola! Lo he hecho con potenciadores de 10 k y el sonido es muy pero muy leve.si o si necesito un amplificador? Gracias
Hola Guillermo, los potenciómetros no influyen en el volumen, 10K debe funcionar bien.
Lo ideal es conectarlo a una consola externa para grabar o amplificar.
Saludos.
Julian.