I am currently learning guitar, so hopefully I'll be able to make a pedal before I go.

• How to Make a Programmable Arduino Guitar Pedal
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• echoTrek - Digital Delay / Echo - Audio Effects with Arduino
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• Arduino MEGA Guitar Pedal
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• Fenderino Guitar Shield
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• Arduino DUE Programmable Guitar Pedal
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• Turn an Arduino Uno into a MIDI Controller: Guitar Pedal
• Cthulhinho: a MIDI Sequencer
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