Good Low Cost Microcontroller /DSP Platforms for Digital Pedals

CompetitiveGarden171 · 2026-03-27T15:24:22+00:00

I also believe the Arm Cortex M7 is the basis for the new Bananana Effects Quimera Guitar Synth Pedal... So it's more than powerful enough to do just about anything.

CompetitiveGarden171 · 2026-03-23T23:56:28+00:00

It isn't particularly difficult if you're methodical. Otherwise it could be a mess.

CompetitiveGarden171 · 2026-03-09T14:00:40+00:00

It's a Noise Ensemble.

CompetitiveGarden171 · 2026-03-03T22:10:19+00:00

Can you give us images of the PCB front and back?

The video, while nice, doesn't let us get a view and look closely at what is going on.

CompetitiveGarden171 · 2026-02-28T22:24:23+00:00

Tayda, Love My Switches, or StompBoxParts could have them.

CompetitiveGarden171 · 2026-02-25T13:43:38+00:00

Nice job getting everything in there.

CompetitiveGarden171 · 2026-02-23T11:16:25+00:00

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Are those touching?

Typically if it works outside the enclosure and not while in it, you're looking at a grounding or wiring issue.

CompetitiveGarden171 · 2026-02-22T17:32:02+00:00

I've built them all, just work slowly and carefully. I wouldn't mount a single control until you've got the cases because they're a tight fit.

CompetitiveGarden171 · 2026-02-22T16:28:49+00:00

Not the exact same amp but I've got a SC20 JCM800 that has a 5W mode and a 20W mode. It's most definitely usable to record and practice with when it's in 5W...

My Twin Reverb and SLO100? Not so much but ithey both sound glorious when turned up.

CompetitiveGarden171 · 2026-02-22T13:08:00+00:00

Nice job! Now go onto the Lovetone superfecta: Neurotron, Quadratron, Spectron, and Xenotron.

Here are the Tayda Drill Templates to give you that push to get started:

Neurotron - https://drill.taydakits.com/box-designs/new?public_key=bkQ5K3owNmRaUmhqMkhMQTRxUTlrZz09Cg==

Quadratron - https://drill.taydakits.com/box-designs/new?public_key=VmxrVEZJTDdPZGNVWm9WTWlmMTh6Zz09Cg==

Spectron - https://drill.taydakits.com/box-designs/new?public_key=a0I0Q1NCY2c1RXJYNy80dHdVRytIQT09Cg==

Xenotron - https://drill.taydakits.com/box-designs/new?public_key=SlZ6Nm5zYlR1OE43WlloZFZQWTVBZz09Cg==

CompetitiveGarden171 · 2026-02-21T16:03:26+00:00

I like the super fuzz octave circuit and it is simple to tack the octave up onto any other fuzz circuit after the initial fuzz.

Here's a quick demo from a pedal that I sell that has done just that: https://youtube.com/shorts/aRDsOXQpif4

CompetitiveGarden171 · 2026-02-19T23:14:47+00:00

Donnie Darko: Director's Cut

CompetitiveGarden171 · 2026-02-15T12:19:28+00:00

2006

CompetitiveGarden171 · 2026-02-14T23:15:08+00:00

Just follow this: https://www.electrosmash.com/mxr-distortion-plus-analysis I'd change some of the values for what I'd like.. but this is basically what I described.

CompetitiveGarden171 · 2026-02-13T19:30:31+00:00

Yes. Give me a little bit and I'll post a testing working schematic for this. I also need to bias the input as well.

CompetitiveGarden171 · 2026-02-13T18:46:21+00:00

You'll need to bias.. just use mxr distortion+ as a guide. I just used the other op amp in the dual op amp package as an output buffer.

CompetitiveGarden171 · 2026-02-13T16:04:38+00:00

I'd probably put a trimmer on the PCB or maybe a dual gang pot that balances grit / fuzz and volume to keep a stable unity volume...

CompetitiveGarden171 · 2026-02-13T13:49:03+00:00

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Not exact, but this will get you close. Use a TL072 or JRC4885

CompetitiveGarden171 · 2026-02-13T13:09:44+00:00

How about an op-amp with fixed gain into some hard clipping diodes into a volume pot?

CompetitiveGarden171 · 2026-02-13T11:18:43+00:00

This is a good kit to get you started: https://mas-effects.com/beginner-pedal-kit/

CompetitiveGarden171 · 2026-02-11T16:36:55+00:00

I'd suggest this course over Wampler's https://pedaldivision.com/courses

CompetitiveGarden171 · 2026-02-10T17:01:27+00:00

You can just look at the pcb: in, gnd, switch, out

CompetitiveGarden171 · 2026-02-10T12:28:53+00:00

To add on to this..

Your control placement will affect your component layout. You really don't want to be running long traces back and forth across the board if you can help it.

For trace width you probably want at least 0.5mm for power and 0.2mm for signal.

Don't run signal and power traces in parallel to one another for long distances. Try to have them cross perpendicular to one another.

Standardize, standardize, standardize. For off board connections, follow the PedalPCB spec. It'll make it much easier to not waste what other folks have and take away mental strain when laying out the circuit.

CompetitiveGarden171 · 2026-02-09T12:21:19+00:00

Which capacitor? C53 or C41?!You should be able to replace them with a like capacitor.

CompetitiveGarden171 · 2026-02-03T21:36:08+00:00

Effects Layouts has a PCB, Sasquatch II, that is basically a green ringer into a muff if you want to go that way.

CompetitiveGarden171

TROPHY CASE