After building a few pedals, I grew tired of the growing cable mess and never want to spray paint again. I decided to build a rack unit to house all my pedals in a tidy configuration. So, I designed a relay switcher board to handle switching with a face mounted momentary switch. The units are all daisy-chained together as slaves on an I2C bus and can be switched with a single master Arduino (with a PCB shield I designed) via MIDI or USB from a PC. I thought you guys might be interested in checking it out :) The link is to the imgur album with descriptions of the build process.
Modular Guitar Pedal Rack with MIDI Switching (http://imgur.com/a/7Qdp2)
(http://i.imgur.com/AriCPdEl.jpg)
Wow! Great work, and thanks for the walkthrough.
This is fantastic work, man! This is such a cool mix of everything that makes electronics and guitar fun. Bravo.
Awesome design man.
Sweet! I need to build something like this.
Thanks guys! I'd probably do a few things different on the switcher board but not much. I really appreciate you all taking the time to check it out.
that's very impressive.
what is the patchbay on the front for? And I think 400mA won't do it with that number of pcbs effects. ;)
Quote from: m-Kresol on December 01, 2016, 07:47:31 PM
And I think 400mA won't do it with that number of pcbs effects. ;)
I have to agree. I wonder if the 400mA also includes the relays? If so, I definitely would think it may not be enough.
Quote from: m-Kresol on December 01, 2016, 07:47:31 PM
what is the patchbay on the front for? And I think 400mA won't do it with that number of pcbs effects. ;)
No it won't :) I'd never built a power supply before, so this is really just a stop-gap. I have some bigger transformers to build another linear supply, but am also investigating building my own "quiet"/low-ripple switching supply as my next project. The patchbay is so I can run the ins/outs of each pedal to the front panel in a re-configurable way. Right now most of them are just daisy-chained in the rear, but I have my drive pedals on a different chain than the delays. I had considered mounting the I/O on the pedal faceplates but decided against it to save space and reduce visible cable clutter.
Dreamy
awesome work so far!!!