I cant seem to find any pedalpcb.com fv-1 Demos on the web :/
As anyone build one on this forum ? Do they sound any good ?
Yes, it sounded awesome. Plus, Rob is a great guy when you are stuck or get any issue with the build. I will try to make a quick demo this weekend for my finished Glimmer. It's a definitely a go-to pedal for the post-rock style/worship music.
Cool :) i just ordered a fv1 chip, Organ donor pcb and a phaser 2 pcb just to get the free shipping :D
Really curious how diy digital pedals sound ^^ hope that he makes more. Weird how some of the layouts of fv1 chip pcb are identical... all that must be different is the program on the rom chip. NEED a digital synth pedal !!
Just noticed he is coming out with a multi effect. Curious about this one. http://www.pedalpcb.com/product/octagon/
The Organ Donor does sound awesome, very comparable to the EQD organizer
Quote from: fair.child on January 24, 2018, 01:24:01 PM
I will try to make a quick demo this weekend for my finished Glimmer. It's a definitely a go-to pedal for the post-rock style/worship music.
Yes please
Quote from: bsoncini on January 24, 2018, 02:02:20 PM
Just noticed he is coming out with a multi effect. Curious about this one. http://www.pedalpcb.com/product/octagon/
Wow, tempted to build one actually
I'd kinda like to build the Organ Donor, but I've noticed that the schematic/build notes still haven't been released. So, I dunno.
Wha, somehow I've never watched a demo of the organizer?! It sounds fantastic. I'd like to see the documentation as well. This one might stave off my need to finally pick an EHX 9 series pedal up.
Interesting. Wouldn't be difficult to turn that 8 effect pedal into a 15 effect pedal, would just need to wire a switch onto the ground side of that 10k resistor under the EEPROM.
I also just realized how many of their PCBs are identical save for the EEPROM they come with. Fascinating. Makes sense I suppose, why bother designing a new board if its the same architecture.
Quote from: somnif on January 24, 2018, 06:13:48 PM
Interesting. Wouldn't be difficult to turn that 8 effect pedal into a 15 effect pedal, would just need to wire a switch onto the ground side of that 10k resistor under the EEPROM.
Just emailed Rob and he said it uses the 100k linear pot to change between the presets. I asked him whether there is a way to trick switching nicely between the presets. Perhaps, 8 poles rotary switch.
Quote from: fair.child on January 24, 2018, 11:24:40 PM
Just emailed Rob and he said it uses the 100k linear pot to change between the presets. I asked him whether there is a way to trick switching nicely between the presets. Perhaps, 8 poles rotary switch.
Yeah he has a little microprocessor on the board that will play the role of the 3 toggles the FV-1 is designed around (the ATINY85 chip). So like, 0-12.5k = (0-0-0), 12.5-25k = (1-0-0), 25-37.5k = (0-1-0), etc etc etc. (I mean the resulting voltage from those resistances, but same diff)
In theory you could set up the same deal with a rotary and resistors in series. It would be a bit of a pain to fit in the box though, not a lot of room in a 125 to spare.
What I meant about the 15 effect thing was, the way he has it set up is it will use 8 effects from the outboard EEPROM chip. BUT, the FV-1 also has 7 (plus one blank) effects built into it. If pin 13 sees a 3.3V signal, it uses the stuff on the chip. No 3.3V, it uses the onboard stuff. To do this, you wire a switch on that 10k resistor under the eeprom, flipped up the juice flows to the FV-1, flipped down it goes to ground.
This would give you all 8 effects on the EEPROM, plus the 7 defaults. Super simple.
Also, because he was nice enough to use a through-hole design for the EEPROM, all you need is to socket it and you could swap out effects for the price of a new chip. All manner of fun patches out there to play with, or design your own.
(Ah screw it, I just bought the octagon and a chip. Ramen for a week it shall be!)
Pentadecagon, here I come!
Quote from: somnif on January 24, 2018, 11:54:20 PM
(Ah screw it, I just bought the octagon and a chip. Ramen for a week it shall be!)
Pentadecagon, here I come!
Wow, that was escalated quickly.
Quote from: fair.child on January 25, 2018, 12:30:36 AM
Wow, that was escalated quickly.
Heh, I've wanted a nice, basic FV-1 board for a while, and this fits the bill. Has an EEPROM socket, volume and mix controls, pretty much what I wanted to play with. The experimentation angle was just the icing on the cake ;D
Quote from: somnif on January 25, 2018, 12:33:16 AM
Quote from: fair.child on January 25, 2018, 12:30:36 AM
Wow, that was escalated quickly.
Heh, I've wanted a nice, basic FV-1 board for a while, and this fits the bill. Has an EEPROM socket, volume and mix controls, pretty much what I wanted to play with. The experimentation angle was just the icing on the cake ;D
Too bad, I just finished the Glimmer two weeks ago. Didn't expect this one coming. Build Report please
QuoteWow, that was escalated quickly
Haha, watch it escalate when I get three of those board and put them in a DD, each with the 3.3v switch...
Ok.
Maybe not.
Quote from: Willybomb on January 25, 2018, 12:49:21 AM
QuoteWow, that was escalated quickly
Haha, watch it escalate when I get three of those board and put them in a DD, each with the 3.3v switch...
Ok.
Maybe not.
Hmm, 4 of the 8 pins on the EEPROM are grounded, and two of the remaining are linked... wouldn't be too tricky to set up a rotary to swap around EEPROMS on the fly.... A little daughter board, a few sockets..... Hmmmm
I was thinking 3 PCBs in series, but I like your thinking too.
Hmm, the set up would be even easier if one left the chips powered when not selected, then you'd only need to vary 2 positions (the data and clock pins). A 2P6T would let you have a 55 effect pedal.... Good lord this could get ridiculous in a hurry... Do I really need a pentacontakaipentagon? :o
Quote from: somnif on January 25, 2018, 01:26:36 AM
Do I really need a pentacontakaipentagon? :o
Yes. You do.
Quote from: Yahoo67 on January 24, 2018, 12:46:14 PM
I cant seem to find any pedalpcb.com fv-1 Demos on the web :/
As anyone build one on this forum ? Do they sound any good ?
I've built his Radium Springs and Organizer and they are both fantastic.
Quote from: Torgoslayer on January 25, 2018, 07:12:47 AM
Quote from: Yahoo67 on January 24, 2018, 12:46:14 PM
I cant seem to find any pedalpcb.com fv-1 Demos on the web :/
As anyone build one on this forum ? Do they sound any good ?
I've built his Radium Springs and Organizer and they are both fantastic.
Would you post an organizer build report or demo for us?
Quote from: somnif on January 25, 2018, 01:26:36 AM
Hmm, the set up would be even easier if one left the chips powered when not selected, then you'd only need to vary 2 positions (the data and clock pins). A 2P6T would let you have a 55 effect pedal.... Good lord this could get ridiculous in a hurry... Do I really need a pentacontakaipentagon? :o
You smart guys mod this out so the not so smart guys (me) can copy LOL. This post caused me to get out my Molecular Disruption Pedal last night and start playing with it. 3 of these boards stacked in a box could really have some fantastic sound potential.
Well too much temptation. I ordered the Organ Donor since it's something I kinda always wanted. Did find a very brief audio clips here:
[soundcloud]https://soundcloud.com/wobbybird/organ[/soundcloud]
[soundcloud]https://soundcloud.com/wobbybird/organ2[/soundcloud]
Quote from: madbean on January 25, 2018, 09:13:21 AM
Well too much temptation. I ordered the Organ Donor since it's something I kinda always wanted. Did find a very brief audio clips here:
[soundcloud]https://soundcloud.com/wobbybird/organ[/soundcloud]
[soundcloud]https://soundcloud.com/wobbybird/organ2[/soundcloud]
Oh man now that you bought one the heavens will pour these boards lol.
Thanks Bean! Once I get caught up on a few things I'll have to pick one up.
Here ya go, this is a rough draft (most of them are at the moment) but should get you through the build. Shoot me a message any time if you have questions or problems.
http://www.pedalpcb.com/docs/OrganDonor.pdf
BTW I love the ideas for the Octagon! Suggestions for improvements will not be ignored. :)
Bugg is it you who is responsible for bringing all The fv1 goodness?
Haha yeah man, it's me. ;D
Well I just bought a Pickit2 knock-off and a fistfull of 24LC32A's, I am ready to experimentalize!
Now I just need to wait for my registration to be approved for the SpinCAD forum. ;D
I whent and watch some video for soldering smd part for when my organ donor comes in .... this video makes it looks so easy T_T i am kind of stressed thinking of soldering non leaded components :p
https://m.youtube.com/watch?v=5uiroWBkdFY
P
Quote from: Yahoo67 on January 26, 2018, 06:43:50 AM
I whent and watch some video for soldering smd part for when my organ donor comes in .... this video makes it looks so easy T_T i am kind of stressed thinking of soldering non leaded components :p
https://m.youtube.com/watch?v=5uiroWBkdFY
Might be useful to practice on something else first? Like most things, it gets better with repetition!
I built the Hypernova a few weeks ago. It's great! Is kind or supermoon-like with a faster phase-type modulation. It was also one of the fastest builds i've ever done! The architecture for the FV-1 seems pretty simple. I'm super excited about the octagon!
I just thought of something....
I wonder if I could leave the data and clock pins of all the chips connected, and use a switch to power on the chips one by one. THAT would let me use up to 12 chips per switch, for 103 effects total! (Apparently this would be a "hectakaitrigon", neat)
...I almost want to test this, but also don't want to go full on mad scientist and risk frying the chips. Hmmmmm. Hmmmmmmmmmmmm.....
So Bugg, let me just get this straight...
The FV-1 comes with these as default:
Chorus-reverb
Flange-reverb
Tremolo-reverb
Pitch shift
Pitch-echo
Test
Reverb 1
Reverb 2
and your Octagon comes with these on the eprom:
Shimmer Reverb
Modulated Reverb
Modulated Delay
Pitch Delay
Bit Crusher
Dual Pitch Shifter
Harmonic Tremolo
Pulse Tremolo
Soooo, technically we should be able to access those original ones by doing that ground trick as mentioned before.
Are the patches you include in the Octagon the same as in your FV-1 modulated reverb/shimmer reverb?
Quote from: Willybomb on January 30, 2018, 06:00:53 AM
Soooo, technically we should be able to access those original ones by doing that ground trick as mentioned before.
They're in the actual FV-1, so you can access them. But they are not all that great, in my opinion.
Rec'd my Organ Donor today and it looks great. I'm looking forward to a bit of SMD soldering...it's been a while. I'm going to try and re-purpose an FV-1 I have with a broken leg. Unfortunately, I can't even start on it for several more days.
Quote from: Willybomb on January 30, 2018, 06:00:53 AMSo Bugg, let me just get this straight...
Yes, if you ground pin 13 of the FV-1 you can access the internal programs....
Quote from: Willybomb on January 30, 2018, 06:00:53 AMAre the patches you include in the Octagon the same as in your FV-1 modulated reverb/shimmer reverb?
Essentially yes. The difference is that in the Octagon you have a little more control over the parameters because of the extra digital control. You can actually control the pitch of the shimmer (from one octave down to one octave up)... With the modulated reverb you can control the modulation rate and depth individually.
I'm considering replacing the last algorithm (pulse tremolo) with something that I
think might be a bit more exciting....
I too have been getting my feet wet with some SMT stuff and found these to be helpful
https://www.amazon.com/s/ref=nb_sb_noss_2?url=search-alias%3Daps&field-keywords=SMD+practice (https://www.amazon.com/s/ref=nb_sb_noss_2?url=search-alias%3Daps&field-keywords=SMD+practice)
I have ordered 3 different ones and they have all been legit. I went ahead and got a cheap hot air station and some solder paste.
Hot air station: Cheap starter one.. If I get more into this I may upgrade to something else.
https://www.amazon.com/gp/product/B01NCB4SQ7/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 (https://www.amazon.com/gp/product/B01NCB4SQ7/ref=oh_aui_search_detailpage?ie=UTF8&psc=1)
Solder Paste:
https://www.amazon.com/gp/product/B017RSGPI8/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 (https://www.amazon.com/gp/product/B017RSGPI8/ref=oh_aui_search_detailpage?ie=UTF8&psc=1)
I have a few of the PedalPCB's boards and will definitely grab some more when I get some more bench time planned.
Cody
Quote from: madbean on January 30, 2018, 04:42:40 PM
Rec'd my Organ Donor today and it looks great. I'm looking forward to a bit of SMD soldering...it's been a while. I'm going to try and re-purpose an FV-1 I have with a broken leg. Unfortunately, I can't even start on it for several more days.
Got mine today. I did NOT notice, however, that the microntroller is also SMT and there are no programming pins on the board. :/ So this will not be a very handy platform for SpinCAD tinkering, unless there is a socket that will fit.
Quote from: culturejam on February 01, 2018, 04:44:37 PM
Got mine today. I did NOT notice, however, that the microntroller is also SMT and there are no programming pins on the board. :/ So this will not be a very handy platform for SpinCAD tinkering, unless there is a socket that will fit.
Yeah all the single effect FV-1 boards seem to use SMD eeproms. There are sockets out there, probably a bit finicky to use but I've seen em around.
Thats why I ended up going with the "Octagon" board. Through hole design! Just wish they made 8pin ZIF sockets ;D (machined will have to do!)
Quote from: somnif on February 01, 2018, 04:59:22 PM
Thats why I ended up going with the "Octagon" board. Through hole design! Just wish they made 8pin ZIF sockets ;D (machined will have to do!)
I was going to get that, but it was out of stock. Guess I'll wait. :/
Anybody want my Organ Donor board + microcontroller?
Quote from: culturejam on February 01, 2018, 05:06:09 PM
I was going to get that, but it was out of stock. Guess I'll wait. :/
Anybody want my Organ Donor board + microcontroller?
Its up for Backorder now. Not entirely sure how differs from the Pre-Order it was when I bought it, but... logistics! Yay!
edit:
Theres also a 15% off code on their facebook page now, through the 2nd.
The Organ Donor is a different animal. For experimenting you want the Octagon.
The "Pre-Order" bubble is visible when a board is newly added and a first batch hasn't shipped yet.... Backorder means they've sold out and more are on the way.
By the way, the Pulse Tremolo has been replaced with the Daydream effect ... I don't think anyone will be disappointed. ;)
[soundcloud]https://soundcloud.com/buggfxpedals/daydream[/soundcloud]
[soundcloud]https://soundcloud.com/buggfxpedals/daydream-raindrops[/soundcloud]
Quote from: BuGG on February 01, 2018, 06:08:34 PM
The Organ Donor is a different animal. For experimenting you want the Octagon.
The "Pre-Order" bubble is visible when a board is newly added and a first batch hasn't shipped yet.... Backorder means they've sold out and more are on the way.
By the way, the Pulse Tremolo has been replaced with the Daydream effect ... I don't think anyone will be disappointed. ;)
Ooo, neat.
Quote from: somnif on February 01, 2018, 06:12:21 PM
Quote from: BuGG on February 01, 2018, 06:08:34 PM
The Organ Donor is a different animal. For experimenting you want the Octagon.
The "Pre-Order" bubble is visible when a board is newly added and a first batch hasn't shipped yet.... Backorder means they've sold out and more are on the way.
By the way, the Pulse Tremolo has been replaced with the Daydream effect ... I don't think anyone will be disappointed. ;)
Ooo, neat.
Nice! I hope the pending orders will have that. A perfect idea for what i thought was the weakest of the 8. Thank you.
Created a snippet for Glimmer, though this pedal has been done a while. Great shootout for Rob, helping me out debugging the broken TL072. Full build report is coming. I haven't recorded this with direct yet. It's gonna be an awesome and definite stay for this Glimmer.
Quote from: Torgoslayer on February 01, 2018, 10:11:43 PM
Nice! I hope the pending orders will have that. A perfect idea for what i thought was the weakest of the 8. Thank you.
Yep, they'll all be shipped with that set. ;)
Quote from: BuGG on February 02, 2018, 03:39:26 AM
Yep, they'll all be shipped with that set. ;)
To reiterate: Neat ;D
BuGG you've hit ninja level with the FV-1 builds and I think what's been holding a lot of folks back is the programming aspect. Are you using SpinCAD to do these patches or are you coding from scratch?
Quote from: gordo on February 02, 2018, 04:40:22 PM
BuGG you've hit ninja level with the FV-1 builds and I think what's been holding a lot of folks back is the programming aspect. Are you using SpinCAD to do these patches or are you coding from scratch?
A little of both... Typically I build a rough draft of an algorithm in SpinCAD then hand edit the code for the finishing touches.
I've gotta get my head wrapped around programming because between PedalPCB boards and the Rolo Molecular boards I've built I should be a whiz at this stuff by now. I'm really lovin the FV-1 stuff.
Just finished up the octagon. It is freaking fantastic. Thanks for this.
Quote from: Torgoslayer on February 08, 2018, 03:07:20 PM
Just finished up the octagon. It is freaking fantastic. Thanks for this.
I'm hoping mine arrives soon. USPS tracking has failed, so I sit at my mailbox every day like a little kid waiting for the postman. Its kinda nostalgic really ;D
My Organ Donor fired right up. Sounds very cool! The octaves are a bit warbly but that's a limitation of the FV-1, not the design itself. It does decent polyphony, as well. I really like it with some clean tone mixed in - good for nice fat leads (if I could play any). Thanks for making the project available, BuGG! It's a very well put together project.
My FV-1 soldering wasn't quite as clean as it could be; I actually put it on last so it was a bit of a chore manuevering the iron around the parts.
My Octagon arrived today! Woohoo.... and I just realized I'm out of stock on 2 cap values. :-[
I really need to organize my crap and build a spreadsheet or something one of these days.
I have just purchased your Octagon, when i read you included your daydream as a preset my jaw just dropped, i purchased some months ago an fv1 chip thinking about building some kind of shimmer verb but octagon has a lot more to offer. Daydream is your take on smashing pumpkins soma delay, this is going to be fun. Thanks a lot for your time and efforts!
I just stumbled into this thread after some time away from building and my mind is blown. I knew I bought some SMT tools for a reason.
Sent from my SM-N950W using Tapatalk
I'm realy digging the daydream mode. It "feels" like playing through a sample hold, but more musical. If that makes any sense?
Quote from: Torgoslayer on February 10, 2018, 11:16:54 AM
I'm realy digging the daydream mode. It "feels" like playing through a sample hold, but more musical. If that makes any sense?
Turn the delay time all the way up, width and feedback at noon, then drag the pick across an open chord slowly. ;)
I dig it! Zappa should have had this patch. I really like the more experimental and soundtrack sounds i can get from the whole pedal. I play in an occasional Ween cover band and the octagon is filling tons of roles there. The pitch shifters are amazing on vocals. The whole pedal is a great vocals tool.
Quote from: BuGG on February 10, 2018, 07:49:16 PM
Quote from: Torgoslayer on February 10, 2018, 11:16:54 AM
I'm realy digging the daydream mode. It "feels" like playing through a sample hold, but more musical. If that makes any sense?
Turn the delay time all the way up, width and feedback at noon, then drag the pick across an open chord slowly. ;)
The slow stuff is super pretty on the daydream. My favorite setting is delay at 9 o'clock, feedback at 1 oclock, width all the way down, and mix at 1-2 oclock. A great spring reverb meets sci-fi sound.
i see there's even more fv-1 projects up on pedalpcb.com ???
my as yet unbuilt glimmer might have to be shelved in lieu one of the multi's
might wait a while til things settle down over there to see which products er....stick around. :P
@BuGG
is the Pythagoras going to include the Delay+Reverb together? What is the difference between Pythagoras and Octagon?
Quote from: fair.child on February 12, 2018, 05:30:05 PMis the Pythagoras going to include the Delay+Reverb together? What is the difference between Pythagoras and Octagon?
The Pythagoras is a three mode board (vs eight in the Octagon) that uses a standard SPDT toggle switch to toggle between effects.
It can be used to build single, dual, or triple mode pedals simply by installing a different type of toggle switch.
Single = Omit Toggle Switch
Dual = On/On
Triple = On/Off/On
This will eventually replace the current "single mode" boards and will group up to three similar effects in one.
Delay (Modulation, Space, Pitch)
Reverb (Hypernova / Glimmer / Radium Springs)
Modulation (Flanger, Phaser, Chorus)
Daydream (Ascending / Descending)
etc...
So technically, can I use Glimmer and Space using Pythagoras? Looks like this is going to be my next build.
Yep, they would just have to both be loaded on the same EEPROM.
Quote from: BuGG on February 12, 2018, 07:17:53 PM
Yep, they would just have to both be loaded on the same EEPROM.
Does it mean I need to program the EEPROM for that? Or you'll include the EEPROM like Glimmer, Radium Springs?
Quote from: BuGG on February 12, 2018, 06:08:28 PM
Quote from: fair.child on February 12, 2018, 05:30:05 PMis the Pythagoras going to include the Delay+Reverb together? What is the difference between Pythagoras and Octagon?
The Pythagoras is a three mode board (vs eight in the Octagon) that uses a standard SPDT toggle switch to toggle between effects.
It can be used to build single, dual, or triple mode pedals simply by installing a different type of toggle switch.
Single = Omit Toggle Switch
Dual = On/On
Triple = On/Off/On
This will eventually replace the current "single mode" boards and will group up to three similar effects in one.
Delay (Modulation, Space, Pitch)
Reverb (Hypernova / Glimmer / Radium Springs)
Modulation (Flanger, Phaser, Chorus)
Daydream (Ascending / Descending)
etc...
This seems like a clever solution to grouped muti pedals. I'm in for at least one each. I see a pythagoras collection ahead! Maybe the bit crusher along with a ring mod and robo effect. And an autowah, filter, low pass xerograph type thing....
Quote from: Torgoslayer on February 12, 2018, 10:14:23 PM
This seems like a clever solution to grouped muti pedals. I'm in for at least one each. I see a pythagoras collection ahead! Maybe the bit crusher along with a ring mod and robo effect. And an autowah, filter, low pass xerograph type thing....
Or do like I'm doing and go mad trying to teach yourself SpinCAD! So many ridiculously terrible sounding patches.... so many more yet to make!
Sitting around waiting on my last 2 components to finish my octagon are driving me slightly batty. Actually took my mostly-complete board to work today so I could shove it under a microscope and make sure my SMD soldering was successful. I think I did ok, but think I confused the hell out of some of my students, talking about molecular phylogenetics one minute, pulling out a random circuit board the next...
Finally got my caps and sockets! So many little screw ups during assembly. LED hole too big, LED hole not aligned with PCB, DC hole too small, forgot to buy knobs.....
Got the board all wired up to test and.... nothing. Not a sound. Oh no. Took it apart, back to the bench, continuity checked everything, and decided to re-heat one leg on the FV-1 that worried me a little.
Wired back up to test rack and.... nothing. Dig around a bit more.... and turns out I had clipped my aligator clips to the wrong side of a switched jack, so I wasn't actually getting signal through. :-[
Swaps some clips and it works! And I swapped in a few EEPROMs and they worked too! Even the terrible patches I've assembled myself. ;D Haven't added the internal/external switch yet but I have confirmed it works with clipping R10 to ground, so that's on the docket next. Then experimenting with hot-swapping EEPROMs to see how that goes. And writing more patches! Hopefully some that aren't quite as terrible as this first batch....
(https://i.imgur.com/sAzuhNo.png?1)
Quote from: somnif on February 22, 2018, 09:55:19 PMThen experimenting with hot-swapping EEPROMs to see how that goes.
You can hot-swap the EEPROM but you'll have to change modes to instruct the FV-1 to load a new program.
Want to thank BUGG for some great projects! Had taken a break from pedal building partially out of time constraints but also lack of projects that seemed particularly exciting to me.
Just finished the board for the Organ Donor. Very cool. And yes, the surface mount chips were daunting initially but I was able to get a functional build without any special tools (just a cheapo iron and thinnish solder I normally use). I recommend using tape or something (some have said sticky tack/poster tack) to hold the chips in place while soldering and probably soldering chips first.
Looking forward to some more FV-1 builds!
I built the octagon. Really cool pedal. Been playing with it for a week and still probably haven't heard all the sounds it's cable of. Don't let the smd scare you. I've never done smd before and it just took me a few minutes. I already have a few friends that want me to build them one.
As many of us do in diy I can't help but thing how I could add even more to it. I think an expression input would be perfect. Plus the option to decide what pot I want to use the expression pedal on since some modes pot 1 might be perfect others 2 or 3. All 3 pots are just a voltage divider. I'm thinking running the middle leg on each pot to a rotary switch to select which pot I want to use. Or maybe just a simple switch to choose between 2 if the rotary switch seems too complicated. Is this the best way to implement this? Any side effects that can come from this? Obviously this will have to probably go into a 1590bb. And the expression jack will need 3 volts and ground on different lugs.
I can confirm the mod that I talked about in the post above works perfectly.
With a 3p4t rotary i can choose between expression pedal off, and controlling pot 1, 2 or 3. It sounds really cool with the expression pedal controlling the filter in bit crush and pin 1 or 3 in pitch shift mode. Nice with the delay modes also. Still need to play with it à bit more.
I can explain the wiring I did if anyone is interested.
Quote from: bsoncini on March 05, 2018, 05:13:10 AM
I can confirm the mod that I talked about in the post above works perfectly.
With a 3p4t rotary i can choose between expression pedal off, and controlling pot 1, 2 or 3. It sounds really cool with the expression pedal controlling the filter in bit crush and pin 1 or 3 in pitch shift mode. Nice with the delay modes also. Still need to play with it à bit more.
I can explain the wiring I did if anyone is interested.
Very cool! I'm building one soon and might mess with this idea too. Thanks.
Quote from: p_wats on March 05, 2018, 01:33:24 PM
Quote from: bsoncini on March 05, 2018, 05:13:10 AM
I can confirm the mod that I talked about in the post above works perfectly.
With a 3p4t rotary i can choose between expression pedal off, and controlling pot 1, 2 or 3. It sounds really cool with the expression pedal controlling the filter in bit crush and pin 1 or 3 in pitch shift mode. Nice with the delay modes also. Still need to play with it à bit more.
I can explain the wiring I did if anyone is interested.
Very cool! I'm building one soon and might mess with this idea too. Thanks.
If you wanna know what I did.
Pad 2 of pot 1 on PCB to a on rotary
Pad2 of pot 2 on PCB to b on rotary
Pad 2 of pot 3 on PCB to c on rorary
Lug 2 of pot 1 to 1,3 and 4 on rotary.
Lug 2 of pot 2 to 5,6 and 8 on rotary
Lug 2 of pot 3 to 9,10 and 11 on rotary
Pin 2,7 and 12 to middle lug of expression jack.
Take the 3v3 for lug 3 of the nearest pot to one of the outer lugs of the expression jack. Pin 1 from from same pot to other outer expression lug.
It's probably obvious but don't connect lug 2 of the 3 pots to the PCB.
Got my Octagon populated today and am very happy with the options. Can't wait to box it up.
Sent from my SM-N950W using Tapatalk
Quote from: p_wats on March 05, 2018, 01:33:24 PM
Quote from: bsoncini on March 05, 2018, 05:13:10 AM
I can confirm the mod that I talked about in the post above works perfectly.
With a 3p4t rotary i can choose between expression pedal off, and controlling pot 1, 2 or 3. It sounds really cool with the expression pedal controlling the filter in bit crush and pin 1 or 3 in pitch shift mode. Nice with the delay modes also. Still need to play with it à bit more.
I can explain the wiring I did if anyone is interested.
Very cool! I'm building one soon and might mess with this idea too. Thanks.
What type enclosure did you end up using ? A 125b must have been to small :/
I will maybe buy a second pcb just to try that mod .... it looks just amazing
À 1590bb
http://www.madbeanpedals.com/forum/index.php?topic=27601.0
I just ordered a bunch of these today - he has great stuff
I ordered the Octagon this weekend during their sale. All of a sudden everyone started posting about this project and then they had a sale...what was I to do?
BuGG even made a custom eeprom for me (what a guy). Here is to SMD/FV-1/patch experimentation!
I'll post my build thread when I get al my parts (I'm planning on adding the ground switch to pin 13 of the fv1 to access the internal patches; I also want to install a rotary switch 1p8t for patch selection; and maybe, just maybe I will add that expression jack I saw in another thread).
octagon PCB with microcontroller and eeprom arrived in the mail yesterday. just ordered enclosure and pots from tayda so will hopefully be able to build some time this week. had FV-1 chips sitting lonely for ages now.
i've got all the stuff to reprogram the eeprom so hoping to be able to experiment with FV-1 programming too, really looking forward to this. i've tried the same kind of project previously with pcb from diystompboxes but could not for the life of me get the microcontrollers to work.
Sorry to dredge up an old thread.
It would be great to have demos for some of the fv1 stuff. I still haven't been able to find many if any. Im hoping to pull the trigger on getting an Arachnid and using the eeprom builder for the patches but it's hard to choose which ones since I can't hear them. I also noticed that the bitcrusher patch is not available in the eeprom builder list.
Btw, The fact that any of this is available at all is super fantastic
Search for my Megatron TMK2601 build... 3 octagons in a box, each with custom eeproms plus switches to access the onboard effects...