r/diypedals

Daisy Seed - ESP32 Multi Guitar Effects pedal
▲ 5 r/diypedals+1 crossposts

Daisy Seed - ESP32 Multi Guitar Effects pedal

Hello All,

I have been working on my first ever schematic and PCB in order to make a multi effects guitar pedal. I have a lot of help available to me through my job however I would still like a set of sharp different eyes to look at my design. A few things im concerned about.

- the TL072H as guitar input and output buffer. I copied this input from the Terrarium PCB however I have suspicions there are better op amps suited for this.
- UART Trace from daisy seed to esp32

- Power delivery stage design. I have seperated out the power filtering for the different components and isolated them with a ferrite bead. In breadboarding I have found that already a steady in is a smart choice. These filter stages are mainly insurance.

- I know the mounting hole locations are not everyones taste in placement but im satisfied.

- ESP32 antenna placement combined with the sd placement

- Currently i use THT soldering pads. Should i exchange this with another type of connector such as a JST connector?

https://preview.redd.it/6f8o5manvdkh1.png?width=4096&format=png&auto=webp&s=243806f36d0d494cef0012d351adc9871c65b0a1

https://preview.redd.it/vyghdjzsvdkh1.png?width=1790&format=png&auto=webp&s=df2c70550cd57aa8ec49438d9d92962ba65387e1

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u/More-Tower9993 — 7 hours ago

Good quality embossing label maker for pedal parts bins?

Since this is related to diy pedal parts, I hope this is ok to post here.

I really love the look and feel of the old embossed style of labels for my parts drawers/bins. I have one of the modern Dyno ones, but it's a cheap piece of junk that jams constantly and feels like it's gonna break every time I squeeze the handle. Do any of you here use these kind of labels for your pedal parts and know of a better quality one around that I should get? Or even an old used model to look out for?

Mods: if this kind of post isn't allowed, just let me know and I'll post this elsewhere.

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u/spn_phoenix_92 — 12 hours ago
▲ 6 r/diypedals+1 crossposts

Any obvious mistakes/improvments on this PCB? Help a noob pls <3

Edit: Added Schematic as comment
Edit2: added an explanation of the different pots/switches underneath the schematic-comment here

https://www.reddit.com/r/diypedals/s/GP3GNY2MfV

Recently posted about this project already, but since I reworked the Layout and all traces and completly finished them, I thought posting new would be more usefull.

It's my attempt to a Tubescreamer-based guitar overdrive pedal and my very first own pcb-design ever. I would highly appreciate some input regarding the pcb so far and if there are obvious improvements possible or mistakes done.

Signal-Traces are 0,5mm/20mil and power-traces (V9+ and V4,5+) are 1mm/40mil. Tried to stick to minimal distance of 1mm/40mil, in some corners etc it's more like 0,6-0,7mm/23-24mil (but only short distance). On the lower left corner are 3 traces very close (0,2mm/8mil) to each other, but that is on purpose to reduce possible loop surface (I hope that is the correct term in english), since that footswitchable "driveboost" mod can tend to oscilate the op-amp in certain settings. I will actually use cables for a fair distance of that part of the signal instead of traces which I twist together for the same reason (twisting helped a lot on my prototype, which is a TS-Kit with cablewired mods)

Ground via gnd-poures on both sides and with the help of several vias. Via's are all 0,6mm holediameter and 1mm in total. I've also placed several GND-Pads on the PCB's just in case and for more flexibility when actually wiring it all together.

Most pads in the lower-middle part are actually 9V-connections for the switching of 2 bi-color LED's. The switch in the upright corner is also involved in switching the led's, but routing that 9v-connections of the switch through the whole board seemed......tricky, so I will actually use wires for that part aswell and have prepared pads for that.

Input/Output and DC Jacks will be wired offboard.
I hope that is all info needed for the more experienced and helpful people here in the sub :) So, roast me please! Did I do good, bad or at least ok'ish? Any obvious mistakes or easy ways for obvious/big improvement? As I said, it's my very first own pcb, so my experience (and knowledge) is fairly low. I really want to make sure that this is a decent board without mistakes before ordering :D

u/Smoke165 — 15 hours ago

Point to point floating Fuzz Face

Caps are vintage NOS, electrolytics were reformed and tested for ESR and leakage. This thing rips

u/Twar2600 — 13 hours ago
▲ 2 r/diypedals+1 crossposts

How do I ground my Signal in battery driven synths?

Hey there, I have a little project coming up where I want to build a little drum thing for a friend. I thought about the picocore and the MKI Kickdrum, in a box because both can be run on battery and the friend of mine does not have a modular system. The picocore runs with an 1,5 volt battery and the kickdrum can be run with two 9V batteries. But I am not sure how to deal with the grounding of the jack sockets. Because in the pico core (0v - 1,5v) the ground is just the 0v pole of the battery. But because the kickdrum is symmetric in power (0v - 9v - 18v) the ground sits at 9v.
For the signal this is no problem, due to decoupling capacitors, but what about the ground? Is it enough to just have the sleeve of the jack connected to the metal front or to the 0v of both circuits (feels wrong) or do I use a decoupling capacitor there as well?

Thanks for help:)

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u/hannainspace — 18 hours ago
▲ 1 r/diypedals+1 crossposts

Ditto Stereo Looper - loop-only headphone output mod

Hi everyone,
I’m considering modifying my TC Electronic Ditto Stereo Looper to add a headphone output that would let me hear only the recorded loop, while keeping the normal outputs unchanged.

The reason is for live use: sometimes the loop needs to be very quiet in the amp/PA mix, but I still need to hear it clearly because it keeps the timing.

I’d like to use one in-ear headphone in one ear, while keeping my other ear open to hear the live sound.

Ideally:
- Normal Ditto outputs: guitar + loop, as usual
- New headphone output: loop only
- Mono is completely fine, I only need one ear.
- Small internal modification, if possible

I’ve been considering going with an IEM setup, but that would require additional gear, which isn’t ideal when traveling. If modifying the Ditto turns out to be impractical, I’ll probably go that route instead.

Has anyone here worked on the Ditto Stereo circuitry or done a similar modification?
I’m particularly interested in whether there’s a point on the PCB where the loop playback signal can be tapped before it gets mixed with the dry signal, and what would be needed to drive a single in-ear headphone from it.

Any advice, schematics or experience with similar mods would be greatly appreciated!

Thanks!

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u/tilenious — 18 hours ago

Distortion pedal

I finished my first pedal, it's a distortion and is really loud. I found a circuit online, and was only planning on messing around on a breadboard. It was so much fun that I ended up buying some soldering supplies to make a 'real' pedal out of it. Printed the housing for it, and it's a bit large.

I swapped the barrel connector for a battery plug. I couldn't filter out the whistling from my wall wart power adapter. I tried adding some rc filters, but it made no difference so I gave up and settled for the battery.

I want to try to make a noise gate next, so any tips are welcome!

u/ShaguarJNR — 1 day ago

Is this pedal idea possible?

I was thinking about trying to design a pedal that was a voltage sag pedal but had the body and could be used like a Wah and maybe two knobs that would allow for a max and minimum voltage to bounce between but I wouldn’t know where to start.

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u/KronKeeble — 1 day ago

Is this valid

Guys, I want to do rat clone, but never worked with perfboard before. So I found this schematic online, but I'm not sure if it's working. Should I make my own placement or use this one?

Can't find type C pots.

I'm building a Stratoblaster circuit for on an onboard application rather than a pedal box.

I need to find a through hole, board mountable type C (reverse taper) pot that is 50k. I can find a limited number of type C in other values, but I'm not finding 50k in anything other than large assortments-- which would mean I'd end up with a whole bunch of other pots that I don't need.

I do have some type C that are 500k, but I'm assuming they will kill all the low end, and thus not fit this application.

I'd welcome any thoughts, ideas, or sources...

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u/drsfmd — 1 day ago

Delay Pedal Schematic

Hello there!

I want to do a Delay Pedal and just want to ask if someone has a smaller and simple delay lauyout/schematic

Thanks

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u/Gurkentorwart — 1 day ago

The Molie Bass Boost

I built the Molie from das musikding. The led and pedal turns on, the potentiometer and the effect work. But instead of it being a clean bass boost there is some weird distortion sound on top sounding a bit farty.

u/loleggg — 1 day ago

What is this noise 🙏

The Coppersound x JHS Boost a Drive a Fuzz pedal just arrived and it’s my first pedal, I’ve soldered everything, plugged it in and I’m getting these crazy noises, can someone help?

u/GroundbreakingAd765 — 1 day ago

New to creating UV printing designs and don't know whether it will turn out right

I'm using Tayda's UV printing service and they have very specific instructions but unfortunately they are not terribly clear for my purposes, because I am printing only in black on a silver enclosure. They mention very clearly that you must use CMYK printing and not RGB but it's not clear what will happen if you try to print white in CMYK.

I have tried to go and turn all the white bits as see-through, so that there is no fill color where the white is if that makes sense. Like, there's just a checkered background thing in hopes that the printer will treat it like there's just nothing there to be printed but I've never done this before so I'm worried that I'm not doing it how they want you to do it.

Or would it make more sense to print onto an all-black enclosure? Come to think of it, I feel like that will look better so if that seems like a better idea lmk.

If anyone who has more experience with this can give me feedback I would very grateful.

u/Accomplished_Stay127 — 2 days ago
▲ 7 r/diypedals+2 crossposts

"Rosso" free circuit simulator built for pedal/amp DIY

Built a circuit sim that solves the actual physics instead of applying an EQ curve — germanium leakage current that scales with temperature, BBD charge-transfer loss per stage, tube coupling-cap blocking distortion, and more. 1,920 parts, free for personal use (closed source), Windows/Apple Silicon Mac only, amp sim currently disabled (known noise bug). Just added English UI.

[link]

Boss Blues Driver build WAYYY too loud

Built myself a BD2 clone but the thing is obnoxiously loud past 1/3rd of the volume pot. The gain and tone are sounding proper (albeit maybe a little dark), but there’s no way the output on this thing is naturally this loud. I’ve tried swapping the volume pot for a lower value and adding a resistor in series, but that didn’t seem to work. Am I missing something? Somebody help me lol.

u/LousyRabbit94 — 2 days ago

SS/BS Fuck Clone

I was able to take some time this past weekend to knock out another build. I had my mind set on a Fuck Overdrive for a while now. Pics are during transistor selection. I gotta say, this thing rips. It was such a fun build.

u/Moist_Rutabaga_5053 — 2 days ago

confused about SPST switches

hi everyone, im currently trying to build a dual footswitch circuit (channel/chorus) for my fender princeton chorus since the stock one i have doesnt work

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im a little confused about footswitches : the diagram (shown above) tells us to use a SPST switch, but from what i read online and saw on shops, SPST switches only are momentary? its default state is off, and turns on only when pressed and maintained, then turns off again when released, is that right?

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if so, what switch could i buy that is permanent (turns on when pressed and stays on when released) that would be compatible with the circuit ?

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thx !!

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link to the circuit source : https://www.instructables.com/Fender-Princeton-Chorus-Switchfoot-Pedal/

u/BobobXP — 1 day ago