Open Stomp Coyote-1 open source pedal

Open Stomp Coyote-1 open source pedal

The OpenStomp Coyote-1 Open Source Pedal is created by Eric Moyer, who incorporated technicality and computer-operated functions into forming this fully customized and digital processor focused on effects.

Have you ever had the feeling that something might be missing while playing through a stomp-box and thought along the lines of “It would be nice if it had…”? Well, now there is a solution, one that can solve your worries, with the first open-source pedal: The Open Stomp Coyote-1 pedal. The use of an open-source is a methodology that allows the internal operators to make use of a product that is available to download, usually via software applications, but also on devices, such as the Monome. This gadget is the perfect device for those DIY lovers.

Moyer spent a year and 4 months drilling his knowledge into developing this intricately-designed device. He used a Parallax Propeller microprocessor chip that functions with 8 different cores at 80 MHz (similar to the PlayStation 3 component), instead of the standard DSP chip. By incorporating this octa-core processor, Moyer used IT programming abilities and eventually implemented several modules (±15) into the system, such as the tremolo, chorus, and distortions.

Moyer combined music with programming, which in turn, gave rise to this open-source pedal. It is not the traditional effects pedals that musicians are used to, where it just consists of some simple wires, plugs, an on/off switch, and voila, all set and ready to jam! This Coyote-1 pedal can come across as challenging and is most suited to those brain-itching people who love problem-solving and music simultaneously.

Although, when given some time to figure out how this machine operates and having some background knowledge on devices and digital equipment, this open-source pedal will become the only pedal to create that effect to project and give way to express yourself.

The exterior surface components of the Open Stomp Coyote-1 pedal hold 2 x footswitches with LED indicators and a 16 x 2 LCD line screen, and 4 accessible knobs. The backside of the pedal has ¼” input and output and one multipurpose ¼” slot – if used as an input, then it would create intonation effects, if used as an output, it creates stereo effects. There is also an NTSC composite video output (National Television Standards Committee), a headphone output jack, for any external additional equipment to be plugged into this pedal is done through the RJ11 I2C port, to upload any files is done through the use of a micro USB port.

There is a software compatible with the pedal itself, the OpenStomp Workbench. This software gathers the user’s interaction with the pedal’s effects so that the user can see and become accustomed to creating effects that did not initially exist within the system. The OpenStomp system has its typical tasks of being capable of mimicking standard utilities and brittle delays, it can also combine pre-coded modules.

It allows the user to see everything he/she is doing through a pictorial display interface, similar to CorelDRAW or Microsoft Paint.

The hardware and software designs are not open-source, even if the operating system on the pedal is. This device is packed with some included patches, like the tremolo, chorus, distortion, delay, repeated layered loops, and test the tone and pong (inclusion of sources) effects. With its specifications that it comprises of, a wide variety of competencies falls within this device, as such, it gives the user to play around and fidget with the device, because of the numerous probabilities it can produce. It is not just a “1 + 1 = 2”.


• Parallax Propeller microprocessor which includes 8 different microprocessors (cores) at 80 MHz
• 1 Mb SRAM
• 20-bit audio resolution and 44kHz sampling rates for 2 input and 2 output channels
• 4 x control knobs
• 16 x 2 LCD screen
• 2 x stomp switches
• 2 x on/off stomp LED indicators
• 1 x ¼” Audio Input and Output
• 1 x ¼″ audio jack that can be used for anything (input/output / bi-directional jacks)
• Expansion RJ11 I2C ports (for additional foot pedals or other equipment)
• NTSC Video output
• Micro USB
• 9V DC Power input
• Headphone output (mini phono jack)
• Steel framework

This purple-painted steel chassis pedal allows you to upload and design their personal effects and apply them to the device. If you want to design your own effects pedal, you will have to use it with its respective software (OpenStomp Workbench). It produces stomp-box designs that wire knobs, buttons, LEDs, inputs, outputs, and basically everything that requires wires virtually into the system. This is now only available for Windows users and is very reasonably priced at $349 for anyone interested in purchasing this well-thought model.