Don't Fret
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Contents
Overview
The goal of this project is to create a device that takes a sound input, specifically from a guitar, and outputs a manipulated sound. The device will utilize a Raspberry Pi to take the input from an instrument and return an edited sound. The coding will most likely be done in C and allows for a unique effects from the standard reverb, fuzz, etc. effects as well as extensive capability to reprogram.
Link to Log: https://classes.engineering.wustl.edu/ese205/core/index.php?title=Don%27t_Fret_Log
Team Members
- Chance Bayles
- GraceAnne Aldred
- Jared Malkin
- TA: John Fordice
Objectives
- Learn to utilize Raspberry Pi (basics)
- Adapt code from https://www.electrosmash.com/pedal-pi and https://blog.hackster.io/program-your-own-guitar-effects-with-pedal-pi-d77b8c56c0b0 to allow the pedal to run two effects
- Adapt circuitry from the single function pedal on https://www.electrosmash.com/pedal-pi to account for an additional pushbutton to trigger second effect
- Learn how to 3D print a cover and design a cover that allows for usage of both pushbuttons
- Assemble together as a unit and test with guitar and amplifier
Challenges
- Learn to program a Raspberry Pi
- Allowing Raspberry Pi to take input (instrument) and give output (amplifier or microphone)
- Putting together circuitry to add a second function
- Coding for a second function
Materials
(Supplied)
- Assorted Capacitors and Resistors
- 3mm LEDs
(Purchased)
- Resistor Trimmer $0.38
- Op-amp rail-to-rail, pdip8 $0.40**
- 12bit ADC, p-dip8 $3.47**
- socket dor dip8 $0.10 x2
- 3PDT footswitch $7.73
- SPDT toogle switch $2.11
- off-on pushbutton $1.01 x2
- stereo 6.35mm jack $2.01 x2
https://www.mouser.com/ProductDetail/Neutrik/NMJ6HCD2-RM?qs=sGAEpiMZZMv0W4pxf2HiVyu0UZNzwMHS0%2flk9Ts6j0g%3d (Shipping and Backorder)
- $7.99
- $1.99
TOTAL: $31.55
www.mouser.com
Ghant Chart
Project Proposal Presentation
Circuitry
These diagrams is taken from the opensource project on Electrosmash.com regarding Raspberry Pi guitar pedals.
