Project tutorial

Arduino MEGA Guitar Pedal © CC BY-NC

PedalSHIELD MEGA is an open-source Arduino MEGA programmable guitar pedal. You can create and share your own effects and guitar pedals.

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Components and supplies

Ardgen mega
Arduino Mega 2560 & Genuino Mega 2560
The shield is compatible with the Arduino MEGA 2560 and also the ADK model.
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Rgdgrrzsvgslnl8hlyxx
Arduino ADK Rev. 3
The shield is compatible with the Arduino MEGA 2560 and also the ADK model.
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Necessary tools and machines

09507 01
Soldering iron (generic)

Apps and online services

About this project

pedalSHIELD MEGA Video

pedalSHIELD MEGA is a programmable guitar pedal that works with the Arduino MEGA 2560 and MEGA ADK boards.

The project is Open Source & Open Hardware and aimed for hackers, musicians and programmers that want to learn about guitar effects and digital audio using standard C/C++ and the standard Arduino IDE. You can get inspired using the library of effects posted on the pedalSHIELD MEGA online forum.

We created some documents so you can do the project easily:

Specifications.

  • Based on Arduino MEGA 2560 / ADK (16MHz, 8KB RAM).
  • Analog stages using TL972 rail-to-rail operational amplifier.
  • ADC: 10bits.
  • Output Stage: 16 bits (2x8bits PWMs running in parallel)
  • OLED Screen: 128x64 resolution, 1.3 inches (also compatible with 0.96"), I2C.
  • Interface:
  • 2 Configurable push buttons.
  • 1 Configurable switch.
  • 1 programmable blue led.
  • True Bypass Foot-switch
  • OLED Display.
  • Connectors:
  • Input Jack, 1/4 inch unbalanced, Zin=0.5MΩ.
  • Output Jack, 1/4 inch unbalanced, Zout=0.1Ω.
  • Power supply: power taken from the Arduino MEGA board (12V DC).

You can check BliyzCityDIY deep review on Youtube:

pedalSHIELD MEGA Review

Code

pedalSHIELD MEGA Effects PackC/C++
These are a big pack of guitar effect examples coded in C for Arduino
No preview (download only).

Custom parts and enclosures

Bill of Materials
This is the complete pedalSHIELD MEGA parts list with Mouser references
Bom 7w4m4sgcyx

Schematics

pedalSHIELD MEGA Schematics
pedalSHIELD MEGA Schematics
Pedalshield mega schematic ecjagybuyl

Comments

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