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Project Notes

#236 AudioDSP/Boost

AudioDSP boost effect based on the pedalSHIELD.

waveform

Notes

Boost.ino is a simple clean boost/volume control example from the pedalSHIELD examples. The pushbuttons control the output volume up and down.

Core algorithm:

  • the main loop sets the effect on/off indicator (LED on pin 13)
  • input read/output write is handled in the Timer 1 interrupt service routine

AudioDspDriver Library

This example uses a private AudioDspDriver library that contains my refactoring of the core algorithms for driving the board. I may split this out as a stand-alone library at some point.

Construction

Breadboard

The Schematic

Build

Credits and References

About LEAP#236 AudioArduinoDSPOpAmp

This page is a web-friendly rendering of my project notes shared in the LEAP GitHub repository.

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LEAP is my personal collection of electronics projects - usually involving an Arduino or other microprocessor in one way or another. Some are full-blown projects, while many are trivial breadboard experiments, intended to learn and explore something interesting.

Projects are often inspired by things found wild on the net, or ideas from the many great electronics podcasts and YouTube channels. Feel free to borrow liberally, and if you spot any issues do let me know or send a pull-request.

NOTE: For a while I included various scale modelling projects here too, but I've now split them off into a new repository: check out LittleModelArt if you are looking for these projects.

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