PedalSHIELD DUE is a programmable Arduino Open Source & Open Hardware guitar pedal made for guitarists, hackers, and programmers. Users can program their own effects in C/C++ or download ready effects from the online library.
It is designed to be a platform to learn about digital signal processing, effects, synthesizers and experiment without deep knowledge in electronics or programming.
PedalSHIELD uses 2 ADCs and 2 DACS in parallel in order to achieve higher bit resolution (2 x 12bits). However, using only 1 DAC and 1 ADC is possible without modifications. You can check all the details in the hardware design section and in the pedalSHIELD Hardware forum.
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The shield is programmed in C/C++ using the standard free Arduino platform (Linux/Windows/Mac). All tools and programs are open-source and compatible with Arduino libraries.
The design was created using KiCad, an open-source GNU free of charge electronic design CAD tool . All schematic native files and bill of materials are public. The circuit can be broken down into 5 simpler blocks: Power Supply, Input Stage, Output Stage, User Interface and Arduino Connectors:
The functionality is simple; 2 opamps will prepare the signal to be digitized and also 2 opamps will recover the signal from
Guitar Pedal Looper
The microcontroller. Two ADCs in parallel can be used to read the guitar signal, improving the bit depth (2x12bits). Furthermore, this arrange is also compatible with theDouble Span and Digitize Signals using Two ADCs by placing the Jumper1.
The components were selected using easy-to-find through-hole parts and a minimum number of references. You can also download it in txt, pdf, excel or open office format.
There is a 3D printed cover made of ABS plastic with 3mm thickness and designed by Shuttl3D on Thingiverse, it provides enough robustness and protection to the electronic circuits while adding a touch of color to the pedal. If you have a 3D printer you can use and explore other designs made for pedalSHIELD DUE on Thingiverse.
Atomizer Kit, 25,50 €
Once the design was adjusted with the 3D printer, the cover was made of laser-cutplexiglass which is strong and lightweight. The last review is in transparent color which makes easier to check the hardware under it.
Some Rights Reserved , you are free to copy, share, remix and use all material. Trademarks, brand names and logos are the property of their respective owners.
Once the design was adjusted with the 3D printer, the cover was made of laser-cutplexiglass which is strong and lightweight. The last review is in transparent color which makes easier to check the hardware under it.
Some Rights Reserved , you are free to copy, share, remix and use all material. Trademarks, brand names and logos are the property of their respective owners.
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