[103] Open Source Stompbox!

Date: June 18th, 2008 | Comments : [3] | Categories: pedals.

OPenStomp prototype

The OpenStomp™ Coyote-1 is an open source audio effects processor built for guitar players. With the Coyote-1 users can develop custom audio effects in software (like distortion, echo, chorus etc.), mix multiple effects to build “patches”, and exchange those effects and patches with the OpenStomp™ community.

Technical Specifications:
– Propeller Processor (eight independent 80MHz cores or “cogs”)
– 1MByte SRAM
– 44kHz 24-bit sampling (2 input channels and 2 output channels)
– 4 control knobs
– 16×2 LCD screen
– 2 stomp switches
– 2 stomp indicator LEDs
– 1 1/4 inch audio input
– 1 1/4 inch audio output
– 1 multipurpose 1/4 inch audio jack (can be used as either a second output (for stereo effects) or as an additional input (for modulation effects etc.))
– NTSC Video out
– Micro USB
– 9V DC Power in
– Headphone out (mini phono jack)
– RJ45 expansion port (for potentially adding things like external foot pedals)
– Steel chassis

Coming soon at OpenStomp.com


3 Responses to “Open Source Stompbox!”

[450] Jon Says: 7:23 pm, June 18th, 2008

Wow another very cool idea! But does that mean it will sound quite digital? I love that I could program it on my computer, I’m not really that hands on but having seen this today was tempted:


Now I might hold off for the open stomp!

[451] OpenStomp Coyote-1, Beavis Board DIY Stompboxes | GuitarPug Says: 7:43 am, June 20th, 2008

[…] [via] […]

[456] admin Says: 7:01 pm, June 29th, 2008

The price has been announced. It’s $349

9V Wall Adapter
Mini-USB Cable

CD Containing:
OpenStompTM Workbench for WindowsTM
Full Coyote-1 O/S Source (open-source licensed)
All currently completed effects, with source code (open-source licensed)
– Tremolo
– Chorus
– Distortion
– Delay
– Tunstuff (Layered repeat loop)
– (Anything else which is ready on ship day)

Pong w/source (just for fun 🙂

Demo patches using the released effects (Creative Commons licensed)

Coyote-1 User’s Manual
Full Coyote-1 Schematics
Parallax’s Propeller Chip documentation

Parallax’s Propeller IDE (The code development environment for the Propeller Chip)



AMZ Home Page

Guitar FX PCBs