WIGGLING 'LITE' IN GUEST MODE

Tombola

Wanted to post some of the details of my Euclidean polyrhythm generator https://www.muffwiggler.com/forum/viewtopic.php?t=43775

I'm afraid I don't have a drawn up schematic / PCB / Kit at the moment.

I've attached the code, which is VERY hacky and full of inconsistent comments.

Schematic fragments:
The LED Matrix is controlled by a Max7219 chip (They're expensive, but Maxim sent me two samples for free) using the schematic here: http://tronixstuff.wordpress.com/2010/07/09/review-maxim-max7219-led-d isplay-driver-ic/

The arduino board is based on the LadyAda Boarduino schematic: http://www.ladyada.net/make/boarduino/download.html

The hackiest bit is the encoder reading code, which just about works. The connection pins are described in the code.

Happy to answer any questions.

Jarno

That's great Tombola, I was hoping you'd share the code.
Really keen on seeing how you did it.

chinard

awesome, i cant wait to try this out

sduck

Don't know why you didn't post the original thread here. Looks like a great device - may have to look into this!

clarke68

beautyofdecay_

That looks great!
This would be an excellent addition to fill some of the empty spaces in my SDIY Buchlaesque modular Mr. Green

I have to read up on this stuff.

Thanks!

chinard

JJ

Very cool. Pcb/kit would interst me too!

nerdware

I don't know if I'd be interested in this as hardware, but I've had some fun today using this idea in Haskore. Thanks!

thedug

Yes.. schematic or pcb would be awesome!

thedug

Do you think this code would run on the ardcore? It uses a nano.

Tombola

The code would compile & run, but you'd need to wire up the encoders (or probably more sensibly replace with pots and rework the code). It would probably just work without the LED matrix

Spandex

Thanks for sharing the code Tom.

I took the euclidean fn from your code and wrote one that does multiple simultaneous outs. So you can get the 4,5,6,7 etc patterns simultaneously.

Vid here, it's clocked off a noisering.. then the various euclidean patterns are triggering envs and interacting n wotnot.

In fact.. I used your fn to just pre-calculate a load of them (for 1-16) and then it uses those without calling the fn again. Thinking about it further, I realised that it'd be very easy to just precalculate all the lengths/divisions I'm likely to need and store them in a few hundred bytes smile

The module is a stack of jacks and pots that @monobass made (with an identical one he's keeping, thanks Steev!) so we can fiddle around with arduino-based eurorack stuff. It uses an IDE cable to connect to a breakout board, which is some headers taped onto a plastic lid at the moment. It's a LOT of fun.

Monobass

Yeah I should have made mine first ;)

Spandex

hehehe. i'd never have got mine if you had smile

it's really great. ta.

haima

Spandex: nice work!

Is that a Arduino Mega?

Spandex

yeah, we figured that we'd spend the extra and get more channels. then monobass did a load of soldering with that IDE cable so we have plenty of scope for getting stuff in and out of the eurorack, while keeping the arduino on the desk.

i guess at some point, the idea might be to make a standalone module with an embedded chip. for the moment though, we'll probably just have it as something we can reprogram on a whim.

haima

Very cool. I think i'll have to give something like this a try. Thanks for the ideas!

Neutron7

That is very cool!

just a little note on the 7219. if you use the 7221 it is less noisy because it ramps the power to the LEDs it can use the same code (even thoguh it says SPI, it works with serial as well)

and try to put it on a separate regulator, not your main 5v supply if you have one. it puts a lot of noise back in the power supply.

lightworks

this looks great!
any plans to post the schematic?

ThomasVanTa

Awesome!, Thanks

CJ Miller

Tom, I was looking into breadboarding this today, but I don't understand the switches you described.

o-live

nerdware

Stoicheia

o-live

cool project but i really prefer the tombola project smile