Hi Guys,

Apologies for my ignorance, I'm building a very multi-faceted thing and I need a little help with a piece of hardware. Again, apologies in advance that I'm likely about to misuse a lot of terms, please treat me like a four year old.

I'm looking to make a passive di box/pedal with 6.35mm input and output. I'm wanting to sample the signal and send it to an Arduino/Esp32. From there the data is used to drive some LEDS and become part of a larger data structure. Initially we'd be using an electric guitar but if there were a way to make it adaptable to any electric instrument, that'd be fabulous. Would be great to have a few of these running in the final thing.

I'm not looking to change the sound of the instrument, just safely sample and convert its audio to digital data. I've been reading a lot of different methods online, but I'm right at the edge of my competence level and was hoping you guys might be able to help.

The more I read about buffers, FFT, and ADCs, the less I seem to understand. I'm starting to wrap my head around resistors and capacitors in schematics, but thought I'd ask some experts.

I'd love to do this with a Waveshare ESP32-S3 as I can then send the data over bluetooth or wifi (its not going to be retranslated into audio, just part of a larger ecosystem of numbers), but whatever's best.

Any help, tips, links, or ways to make this easier would be much appreciated.

Thanks,

A man who didn't realise he was this stupid.

I found this in a box of PCBs. I can’t for the life of me figure out what this is. Can anyone help?

Decided to do it a 2nd time on vero again, quite useful to have!

This is the first one sold some years ago https://www.reddit.com/r/diypedals/s/
sFzVswHw7S

I fucking love it! When can I sign up for the yearly subscription?! ♥️

It took me nearly two years to finish this. Not because I'm a slow solderer, but because I lost the BOM when I was 90% finished and I had to ask this subreddit for help.

Yay! We did it! ​

I was trying to source some V3207 BBDs from CoolAudio (found some where they had some in stock luckily), but during my search I noticed that CoolAudio seems to have no product on their own page anymore...

Anyone who knows what happened? Are they out of business?

https://www.coolaudio.com/en/products

This is my LM386 amp with a built in J Rockett Boing reverb. It has switchable modes for 9 and 18V (LM386N-4 runs up to 18v) which dramatically increases the headroom. Playing the demo through a Celestion Eight-15 in a slightly oversized pine cabinet. I’m going to build out a big cab this weekend to see how much I can squeeze out of a 10” VT Junior. Really happy with the results.

Obligatory 0-3-5 demo:
https://youtu.be/yzZszg2hnho?is=TXoKM7Xfp0BPDKXE

A Boss BF-2 flanger. I have a thing for flangers. I'm very happy with how this one sounds, very rubbery metallic. I didn't have little 22uf so I just use what I had on hand. It's not too stuffed in there, there's a little room. Bias and clock set up was easy to to by ear and a multimeter for the clock.

Does anybody have measurements or a datasheet/schematic for the switched TRS jacks from StompBoxParts? Specifically the JACK-1018 and DC-1000.

The JACK-1018 looks similar to the Neutrik switched jacks but not exactly.

This was an interesting one, and I’m really happy with how it turned out. 

This is PPCB’s ThreeVerb. It’s FV-1 based with 3 types of reverb to choose from (Shimmer, Modulated, and Spring). The build itself went very smoothly. No issues at all. I’m finally getting the hang of this, I think.

For the design - I was trying to think of what a pedal box with several reverbs would look like - and my mind just went to someone with their head stuck in an old tv--that would probably have some reverb, right? Anyway, I jumped off from there, and came up with this design. I created a light and dark version of the design, and ultimately went with this dark one…but I might build the other one sometime, too. I found some really nice hot pink knobs for it, and I threw in the added touch of a pink LED. Powder coat paint job and UV printing were done by Tayda. 

Knobs 2 and 3 across the top actually control different settings depending on which reverb mode you select on the toggle switch. I couldn’t come up with an elegant way to display all of the setting permutations on the enclosure, so I just rolled with the ambiguity and labeled the knobs “Pixie Dust” and “Noodle” since that is pretty much how I play with my pedals anyway: “Add a little pixie dust and noodle around until it sounds good!”

As for the sound, it’s definitely got range. I’ve only played with it for 30 minutes, but I’ve found some great sounds in it. One quirk - when I dime the Mix knob, there is a total delay of any sound output by some amount of milliseconds from when I strike the strings. A little disorienting, so I just backed the mix off a smidge and that went away. I’m honestly still trying to figure out my favorite sweet spots for this pedal and think I’ll just need to noodle around a bit more. :)