Falafular VATclap PCBs ordered, anyone?

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falafelbiels
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Falafular VATclap PCBs ordered, anyone?

Post by falafelbiels » Mon Apr 11, 2016 7:55 am

Hey guys and gals,

I went ahead and ordered a bunch of VATclap 0.2 PCBs that you might like; I do.

The very first version has some terrible mistakes in it and is very hard to complete as it involves some quite tight cuts and quite cramped kludging of SMD transistors.

Once it runs it sounds nice however:

https://soundcloud.com/falafel-biels/vatclap-demo1

some glitchy shit in my recording setup.

Image
Image
Image

So of course I would like to sell these things to you, because I want to buy an FPV set for my rc quadcopter :hyper:

This is a half clone of the Boss dr-110 handclap circuit. Some ICs are simply unavailable in SMT so I had to take some different approach to the noise generator. The ATmega is there to supply the noise, as well as the trigger sequence or "crackle". The noise from the ATmega sounds much smoother than the original dr-110 noise, which is kind of loopy. Never mind that, it is the overall result that matters right?

The ATmega seems overkill, but it is the most obvious choice if you ask me.
I looked into ATtiny in SMT, but that would require In System Programming which not everyone can do easily, I know I don't like it much this far as I haven't had any good results yet.
A ATtiny with ISP header would take up about as much space on the PCB as an ATmega and an ATmega is much more doable for most so I decided to go with that.

Most of the action on the filter is over the 12 o'clock position. In my demo you hear 1n caps in the filter instead of the 1n2 that it asks for on the PCB.

The module does not hold too many components as you can see, pretty easy build.

The panelcomponentboard has a minor error in it still. The direction of the decay pot is wrong. It being set up as a variable resistor this is very easy to fix. I will make the cut, you do the very simple kludge.


So if anyone would like to try this, PCBs are on their way and should be in in about three to four weeks. I am asking 10,- for a PCB set and €5,- for a panel. A programmed ATmega 328 will be €5,-.
P&P is €3,- worldwide, 21% VAT on the total price where applicable.


Who wants this?



++++++++++++++++++++++++++++++++++++++++++++++

These guys:

Yan6 x 1
Grizzle x 1 + IC?
hsimonis x 1
C1t1zen x 1
Crashlander42 x1
Ayab x 2
Acilator x 1 + IC
Davehoec x 1
GryphonP3 x 1
PWM x 1 + IC
spneca x 1 + IC
Suf-fuD x 1 + IC
Mobith x 1
vtl5c3 x 1 + IC
Inlifeindeath x 1 + IC
Sicpaul x1 + IC
D.simon x1
Attachments
BITCHCLAP_seq5.zip
VATclap Arduino code
(1.86 KiB) Downloaded 19 times
VATclap BOM1.1.pdf
(30.6 KiB) Downloaded 40 times
VATclap panel.svg.zip
(2.64 KiB) Downloaded 21 times
Last edited by falafelbiels on Tue Jul 26, 2016 9:09 am, edited 17 times in total.

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Conjure
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Post by Conjure » Mon Apr 11, 2016 8:19 am

This is awesome.

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Post by PWM » Mon Apr 11, 2016 8:40 am

So you couldn't find a chip in SMD package and chose a way bigger non SMD chip instead.. Excellent! ;)

Sounds great!

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Post by falafelbiels » Mon Apr 11, 2016 8:54 am

Conjure

Thank you!


PWM wrote:So you couldn't find a chip in SMD package and chose a way bigger non SMD chip instead.. Excellent! ;)

Sounds great!
Well that is how it turned out. I figure it is more convenient to most.
The whole noise circuitry in the dr110 alone takes up as much room as about the entire circuit right now.

Yeah it sounds nice doesnt't it?

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Post by PWM » Mon Apr 11, 2016 8:57 am

It really does! Somewhat smoother then a DR-110..

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falafelbiels
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Post by falafelbiels » Mon Apr 11, 2016 8:59 am

PWM wrote:It really does! Somewhat smoother then a DR-110..
Maybe because the filter on this prototype isn't to spec or maybe because the noise from the ATmega is actually somewhat smoother than the original.

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Post by falafelbiels » Mon Apr 11, 2016 9:04 am

Image

This is the stripboard version that I made I think a year and a half ago.
The noise circuit is the two ICs in the middle plus half an opamp and related components for getting the first bit in and triggering the unit on startup. It would keep spewing noise if not triggered at startup.
At the top are a 4017 and a 40106 that, with the surrounding components, provided the trigger sequence.

In the end when I tried to transfer the circuitry to a schematic I couldn't figure out what was what anymore and I actually abandoned the project in despair.
My recent adventures in Arduino have sparked my interest again fortunately.

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PWM
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Post by PWM » Mon Apr 11, 2016 9:14 am

PWM <3 Vero designs. I have an 808 HHs and CY on vero laying around, somewhere.

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falafelbiels
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Post by falafelbiels » Mon Apr 11, 2016 9:21 am

Can't say I enjoy doing it. Sometimes it is wise, but I generally just fritz something up and order some boards somewhere. I actually prefer prototyping in SMD because SMD components are replaced so so easily.

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yan6
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Post by yan6 » Mon Apr 11, 2016 10:57 am

I'm in for one of these, sent you a PM!

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Post by PWM » Mon Apr 11, 2016 12:56 pm

falafelbiels wrote:SMD components are replaced so so easily.

So true. But alas, I'm set in my ways.. :)

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Post by grizzle » Mon Apr 11, 2016 3:06 pm

I want! Are you providing programmed chips for the noise?
Tunes-----> apartmentfox.bandcamp.com

hsimonis
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Post by hsimonis » Mon Apr 11, 2016 3:41 pm

I'm interested in a PCB set and panel, PM sent. Another wooden panel, nice!

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c1t1zen
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Post by c1t1zen » Mon Apr 11, 2016 5:56 pm

Yes, one set for me! :clap:

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Post by Crashlander42 » Mon Apr 11, 2016 6:26 pm

Interested!

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Post by Ayab » Mon Apr 11, 2016 6:48 pm

Sounding good!

2 x PCB and 1 x panel for me please

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Post by acilator » Tue Apr 12, 2016 1:54 am

Yes, one set for me!

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Post by falafelbiels » Tue Apr 12, 2016 2:50 am

Cool guys!


I can do preprogrammed ICs as well. I will have to see how cheap I can get them before I set a price for that.

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Post by PWM » Tue Apr 12, 2016 4:08 am

I'd be interested if there's a programmed chip available...!

Also, I love those panels.

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Post by falafelbiels » Tue Apr 12, 2016 10:50 am

PWM wrote:I'd be interested if there's a programmed chip available...!

Also, I love those panels.
Thank you!

I just ordered a bunch of ATmega128 on ebay.
You are in the list now!

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Post by spneca » Tue Apr 12, 2016 11:25 am

I'm in for a set.

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Post by Suf-fuD » Tue Apr 12, 2016 11:49 am

Please count me in for a set Mr. Falafular! The chip too if poss!

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Post by rhythmdial » Tue Apr 12, 2016 12:31 pm

it sounds GREAT man!

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Post by falafelbiels » Tue Apr 12, 2016 4:25 pm

rhythmdial

Yes it does! I will try some value jiggling coming weekend to see what can be fun

spneca
Suf-fuD

Sho nuff

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Post by PWM » Wed Apr 13, 2016 9:45 am

falafelbiels wrote:
PWM wrote:I'd be interested if there's a programmed chip available...!

Also, I love those panels.
Thank you!

I just ordered a bunch of ATmega128 on ebay.
You are in the list now!
And thank you! :hyper:

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