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emdot_ambient
Joined: Nov 22, 2009
Posts: 667
Location: Frederick, MD
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 Posted: Fri Aug 26, 2011 12:41 pm Post subject:
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Thanks for the update. At least Reset's a go. I'm sure the answer for stop/start will come to you.
I'm already thinking about a 19" wide panel...2 rows of 16 steps each...plenty of room for jacks and other stuff like dividers and sequential switches. 
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ericcoleridge
Joined: Jan 16, 2007
Posts: 889
Location: NYC
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| Posted: Fri Aug 26, 2011 12:53 pm Post subject:
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| HexInverter wrote: |
You could cut traces on the board and do some hacking to make it output a different one per step, yes, but then you would have a different output jack for each step. Am I understanding what you're asking?  |
Yep, that's what I was asking. I suppose if you (or I) were to do this--one might also want to buffer each output---yes? |
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HexInverter
Joined: Aug 21, 2010
Posts: 338
Location: Canada
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| Posted: Fri Aug 26, 2011 1:17 pm Post subject:
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| emdot_ambient wrote: | Thanks for the update. At least Reset's a go. I'm sure the answer for stop/start will come to you.
I'm already thinking about a 19" wide panel...2 rows of 16 steps each...plenty of room for jacks and other stuff like dividers and sequential switches. |
You're very welcome! I think I've got it...just gotta meditate on it a bit more and make 100% sure it is okay. Then check and triple check that I've got it right before making the final board revision.
Eep...just to be clear, the sympleSEQ is NOT able to be scaled step-wise out of the box -- only channel wise. In other words, only 2-8 steps are possible, but you can chain many to the same clock to run at the same time. That is more than once now that someone misunderstood that. I should really change the wording I think -- I think people are interpreting it differently than I mean. Me and my crazy usage of words 
You could try and make them 16 steps yourself, but that would be a modification you would have to do on your own. Sorry if it was not clear. |
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HexInverter
Joined: Aug 21, 2010
Posts: 338
Location: Canada
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| Posted: Fri Aug 26, 2011 1:19 pm Post subject:
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| ericcoleridge wrote: | | HexInverter wrote: |
You could cut traces on the board and do some hacking to make it output a different one per step, yes, but then you would have a different output jack for each step. Am I understanding what you're asking? |
Yep, that's what I was asking. I suppose if you (or I) were to do this--one might also want to buffer each output---yes? |
Yes, any output should be buffered, as far as I know I think I am missing why you might want to do have a different output per step, though? |
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emdot_ambient
Joined: Nov 22, 2009
Posts: 667
Location: Frederick, MD
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| Posted: Fri Aug 26, 2011 2:27 pm Post subject:
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| HexInverter wrote: | | Eep...just to be clear, the sympleSEQ is NOT able to be scaled step-wise out of the box -- only channel wise. In other words, only 2-8 steps are possible, but you can chain many to the same clock to run at the same time...You could try and make them 16 steps yourself, but that would be a modification you would have to do on your own... |
I actually did understand that (though in one of my replies I got confused on the issue a bit). 
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HexInverter
Joined: Aug 21, 2010
Posts: 338
Location: Canada
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| Posted: Fri Aug 26, 2011 2:42 pm Post subject:
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| emdot_ambient wrote: | | HexInverter wrote: | | Eep...just to be clear, the sympleSEQ is NOT able to be scaled step-wise out of the box -- only channel wise. In other words, only 2-8 steps are possible, but you can chain many to the same clock to run at the same time...You could try and make them 16 steps yourself, but that would be a modification you would have to do on your own... |
I actually did understand that (though in one of my replies I got confused on the issue a bit). |
Okay! Good stuff -- just want it to be very clear that those modifications will not be documented or included.
You are more than welcome to do them yourself however, and I would reckon it will become a lot clearer once I have released the schematics! Which I AM working on -- just ironing out the kinks in the reset/stop circuitry as we speak. I think it should be just fine |
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HexInverter
Joined: Aug 21, 2010
Posts: 338
Location: Canada
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| Posted: Fri Aug 26, 2011 5:37 pm Post subject:
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Update: It would appear as though we have pause/stop and reset functionality, now!
A few hours at the breadboard, some resistors, diodes, a pair of caps for switch debouncing and an unused inverter net us switchable and/or externally triggerable pause and reset!!!
When you apply a +V signal to the pause/stop/start, it holds on the current step, and the gate turns off. The clock continues to run, but the gate sends no output, so I do NOT recommend using this sequencer as your main clock source if you plan on syncing it with other stuff and want to stop all of it at once (but then again, why would you be if you're using the features of a better sequencer to provide reset/pause signals? ) Once the pause goes back to GND, the sequencer continues as normal and the gate begins to fire once again!
The reset works just fine as well. It is switchable, or you can input +V to a jack. As long as it stays at +V, the sequencer sits at the first step, and the gate provides no output. Once the input goes low, it continues to step forwards as usual and the gate begins to output again.
To make this work ended up requiring a bit more in the way of board modifications than I had hoped, so it will become a base-feature more than likely. The switches will NOT be included however; only the jack function, as having switches is considered not necessary in my opinion. Of course it is still optional whether or not you actually assemble the function -- it will not harm anything to just leave the jacks unconnected and omit them from your panel layout |
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HexInverter
Joined: Aug 21, 2010
Posts: 338
Location: Canada
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| Posted: Fri Aug 26, 2011 7:11 pm Post subject:
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Just thought I'd pop in to share some sounds! I know it's not a video, but hopefully it'll tide ya over until I can borrow a video camera next week
It is driving the sympleSYNTH voice (another project being worked on) -- a super simple VCO/AR on one board. Hence, it is not pure analog goodness, but you get the idea.
One sympleSEQ is driving the voice, and the other is providing cutoff modulation for the MFOS State Variable VCF (old design)
http://soundcloud.com/hex-inverter/symplesynth-w-sympleseq-and |
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diablojoy
Joined: Sep 07, 2008
Posts: 809
Location: melbourne australia
Audio files: 11
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| Posted: Fri Aug 26, 2011 8:09 pm Post subject:
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| Quote: | | Update: It would appear as though we have pause/stop and reset functionality, now! |
thats really good to hear
I will continue with working on a way to chain these but in the background hopefully with up to 64 steps available eventually
If I come up with anything viable i will post in a new topic so as not to cloud this one any further.
cheers |
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HexInverter
Joined: Aug 21, 2010
Posts: 338
Location: Canada
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| Posted: Fri Aug 26, 2011 8:10 pm Post subject:
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| diablojoy wrote: | | Quote: | | Update: It would appear as though we have pause/stop and reset functionality, now! |
thats really good to hear
I will continue with working on a way to chain these but in the background hopefully with up to 64 steps available eventually
If I come up with anything viable i will post in a new topic so as not to cloud this one any further.
cheers |
Yay Sounds good to me! ^_^ |
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LektroiD
Joined: Aug 23, 2008
Posts: 1019
Location: Scottish Borders
Audio files: 2
G2 patch files: 2
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| Posted: Sun Aug 28, 2011 3:45 am Post subject:
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I would love a couple of these when it becomes available  |
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HexInverter
Joined: Aug 21, 2010
Posts: 338
Location: Canada
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| Posted: Sun Aug 28, 2011 8:30 am Post subject:
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| LektroiD wrote: | | I would love a couple of these when it becomes available |
Awesome! Well, they're going to be shipping around the end of November, as the funding campaign ends October 24th, and then I have to get everything ordered and hand assemble everybody's kits. The boards take pretty much exactly a month from the time I place the order to arrive at my door, and by that time all of the components should definitely be here.
But, the project is not going to happen at this price if enough is not contributed to meet the minimum order numbers to meet the quantity discounts I have assessed the costs at (100 boards, 1000 potentiometers), so if you feel like, your early contribution on Indiegogo will very much help fund the project! 
No rush -- like I said, there are still 58 days left, and we're already at $350 out of $2800
Here's the link in case you missed it!
http://www.indiegogo.com/sympleSEQ |
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HexInverter
Joined: Aug 21, 2010
Posts: 338
Location: Canada
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LektroiD
Joined: Aug 23, 2008
Posts: 1019
Location: Scottish Borders
Audio files: 2
G2 patch files: 2
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| Posted: Tue Aug 30, 2011 4:20 am Post subject:
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the link doesn't work? |
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HexInverter
Joined: Aug 21, 2010
Posts: 338
Location: Canada
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| Posted: Tue Aug 30, 2011 6:07 am Post subject:
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| LektroiD wrote: |
the link doesn't work? |
Interesting...it definitely just worked when I clicked it. Maybe your browser doesn't like the capital letters? Try this other version:
http://igg.me/p/40073?a=227451&i=shlk |
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emdot_ambient
Joined: Nov 22, 2009
Posts: 667
Location: Frederick, MD
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HexInverter
Joined: Aug 21, 2010
Posts: 338
Location: Canada
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HexInverter
Joined: Aug 21, 2010
Posts: 338
Location: Canada
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| Posted: Tue Aug 30, 2011 2:49 pm Post subject:
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Update: I have successfully re-designed the logic board to be exactly 41mm wide, just like the control board! This means people using MOTM/synthesizers.com formats can place a sympleSEQ vertically in 1U wide panel space!
Beta build #2 will be under-way soon, and then I will have some new pictures for all to see, and a video as well |
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HexInverter
Joined: Aug 21, 2010
Posts: 338
Location: Canada
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| Posted: Fri Sep 02, 2011 6:00 pm Post subject:
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I have just uploaded the tentative final schematics to my web-space for those that are interested to view!
This should be the final design and will be tested with a prototype PCB in the coming weeks before project completion!
You can find it here (scroll down):
http://hexinverter.net/?projects=sympleseq-v10 |
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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| Posted: Sat Sep 03, 2011 7:38 am Post subject:
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good idea to do a PCB for a simple 4017 sequencer!
i would be in for a couple of sets of PCBs if you would add a trigger output (using AND gate to create them from the incoming clock and the summed gates), like i did for the VCPS-8. feature creep, i know 
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HexInverter
Joined: Aug 21, 2010
Posts: 338
Location: Canada
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| Posted: Sat Sep 03, 2011 7:58 am Post subject:
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| fonik wrote: | good idea to do a PCB for a simple 4017 sequencer!
i would be in for a couple of sets of PCBs if you would add a trigger output (using AND gate to create them from the incoming clock and the summed gates), like i did for the VCPS-8. feature creep, i know |
It is almost a trigger output already, though -- the gate and clock are being ANDed and form a 1/3 clock pulse output that ends before the next note occurs. This way, you can make use of an envelope generator unlike a lot of easy sequencers which simply tie the notes together.
Does that help?  |
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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| Posted: Sat Sep 03, 2011 11:25 am Post subject:
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i like the triger lenght following the clock pulse width actually, however, having a trigger per step is the main point. so your solution will not be a showstopper for me.
the main reason i would like to have a couple of PCB sets are the on-board potentiometers...
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matthias
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HexInverter
Joined: Aug 21, 2010
Posts: 338
Location: Canada
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| Posted: Sat Sep 03, 2011 12:28 pm Post subject:
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| fonik wrote: | i like the triger lenght following the clock pulse width actually, however, having a trigger per step is the main point. so your solution will not be a showstopper for me.
the main reason i would like to have a couple of PCB sets are the on-board potentiometers... |
Hehe, yeah, the PCB mount pots are really the selling point of this project -- 'tis what I designed it for!
PS: I thoroughly enjoy your PCB work, Fonik. I am flattered that you are interested in my work ^_^
Sorry there is no trigger out You could always just build a very simple gate->trigger converter on a piece of strip/vero-board and switch between that and gate yourself pretty easily! |
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HexInverter
Joined: Aug 21, 2010
Posts: 338
Location: Canada
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| Posted: Sun Sep 04, 2011 9:03 am Post subject:
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Since it's been a little quiet, I decided to take some time to create graphical renderings of the new board layouts
This should be the final revision before production, and I will be prototyping it once my parts get here!
Still $2,375 in funding to go! Share the link with people you might think would like to hear about it to help out I have yet to get a response from Getlofi.com
I've also submitted to some other blogs which have ran with it, but if anybody else can think of other places, do let me know!
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synthesist
Joined: Feb 17, 2011
Posts: 79
Location: austria
Audio files: 2
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| Posted: Mon Sep 05, 2011 12:54 am Post subject:
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I never bought a pcb cause for me it's not really DIY if I dont build on a stripboard. But this will be my first one, cause the last time I tried to build a baby 8 sequ, I almost died hanging myself with wires...
I would be interested in a double set that fits one a euro rack.
But I dont understand the difference between the "full component kit" and the "minimal kit". Does it contain the same components and the only difference is that you have to mount pots and switches on the board?
NOTE: Every kit contains a set of PCBs of course! -- the only difference is in the components included.
1.) Full component kit -- for new (or lazy) builders
Contents:
- One set of sympleSEQ PCBs
- All of the necessary components required to electrically build the sympleSEQ, including board mount switches, potentiometers, hardware to mount the board and the headers which connect the boards together.
- NO knobs or jacks, as these are dependent on the person's personal taste/system format.
2.) Minimal component kit -- for those that wish to source their own common components
Contents:
- One set of sympleSEQ PCBs
- 8x board mount potentiometers
- 8x board mount switches
- Headers to connect the boards together
- Hardware to mount the board to the front panel |
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