Way back in 2015 I started making guitar effect pedals for my own education and amusement. I built a couple of classic pedals in the familiar 1590B enclosure where I hardwired input / output jacks and foot switches to the effects circuitry. From this experience one of the things I went on to design was a breakout board for the 3PDT foot switch. This is it here:
A bumper box of 10 new (yes 10 designs) PCB’s arrived this week.
In it were 5 new (and updated) add-on boards for the Raspberry PC and 5 new boards for the Guitar Effect pedal designs I’ve been working on.
Here’s a photo of the PCB’s.
For the Raspberry Pi, we have a new revision for our popular PIIO ULNB803/GVS board which now features 2 stepper motor connectors for the popular 5v 28YBJ-48 stepper motor. A new revision for the PIAC with new screw terminals. A brand new Digi-IO which is a real world interfacing board with RS485, two relays and some level shifter for inputs. Another brand new PIIO design called “RasPellar” which is a IO co-processor board using the Parallax 32-bit 8-core Propeller CPU and a new HAT sized prototyping board that can be used by it’s self or with RasPeller.
For the guitar effects we have two designs for a “modular electronic effects pedal” or MEEP to its friend. The MEEP board design gives you access to the audio In and Out jack sockets, 9V power and Vb (4.5V) as well as the foot switch and features a true bypass while the effects are added via a smaller daughter board. So if you get sick of using one guitar effect you can simply swap it out with a new effects daughter board for a lot less than buying a new pedal. MEEP BB3 (base board – 3 pots) has three Potentiometers (pots) and MEEP BB4 (base board – 4 pots) has 4 pots. To go with the MEEP base boards there is a prototyping board, MEEP Screamer a clone of the awesome Ibanez Tube Screamer pedal and MEEP Fuzzy yet another clone of the just as awesome Arbiter Fuzz Face.
I’ve recently been researching guitar effects pedals for a new project, so if you’ve never heard of Big Muff Pi, Arbiter Fuzz Face, Ibanez Tube Screamer or Pro Co Rat, check out the sites below to learn some more:
Big Muff Pi circuit versions
Technology of the Tube Screamer
Great pedal site
French DIY pedals
More pedal ideas
Vero (Stripboard) and tagboard effect layouts
Perf and PCB effects layouts
Good range of PCB’s
More DIY pedal designs
Lots of BOSS schematics
stompboxology vintage newsletter
Parts & Kits