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 Forum index » DIY Hardware and Software » Arduino
New to Aurdino: Idea's for project?
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stolenfat



Joined: Apr 17, 2008
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Location: Sunny Oakland California
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PostPosted: Wed Apr 04, 2018 11:55 am    Post subject: New to Aurdino: Idea's for project? Reply with quote  Mark this post and the followings unread

Hey Guys,

Been messing with logic CMOS (lunetta) based noise makers for years (I love them dearly) and now I'm considering getting into ardiuno. Any one have any suggestions for a project for me to look into?

I love wild noises with lots of varied textures, soft and harsh. I like unpredictability, ala circuit bending, but some control is nice too.

Any suggestions or directions for me to check out?

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Grumble



Joined: Nov 23, 2015
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PostPosted: Wed Apr 04, 2018 1:21 pm    Post subject: Reply with quote  Mark this post and the followings unread

Check my signature, its an all arduino synth
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stolenfat



Joined: Apr 17, 2008
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PostPosted: Sun Apr 08, 2018 12:27 am    Post subject: Reply with quote  Mark this post and the followings unread

I don't want to poo poo your work, cause it is awesome (and well played btw- very cool stuff on your channel)... BUT it is fairly similar to many things I've seen done with other/usual modular synth designs...

I guess I was hoping for a link to a completely outlandish noise maker using arduino. Something that sets it apart from using typical chips due to a digital (code) advantage.

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electrotech



Joined: Apr 24, 2013
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PostPosted: Sun Apr 08, 2018 3:18 am    Post subject: Reply with quote  Mark this post and the followings unread

Have a look at this :- https://bleeplabs.com/store/nebulophone/
I made a DIY version for a pal of mine and we both think it sounds amazing.


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stolenfat



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PostPosted: Tue Apr 10, 2018 11:38 am    Post subject: Reply with quote  Mark this post and the followings unread

very cool, thanks for the share.
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stolenfat



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PostPosted: Sun Apr 15, 2018 2:17 am    Post subject: Reply with quote  Mark this post and the followings unread

quick question: if I was to send a clock signal from my lunetta which i typically run at 9v in my case... in order for that to work with arduino at 5v should i connect my clk input jack to a voltage regulator or should i just use an adequate resistor to bring it down?
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electrotech



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PostPosted: Sun Apr 15, 2018 3:56 am    Post subject: Reply with quote  Mark this post and the followings unread

Since the Arduino inputs are at high impedance and very little current is drawn, you just need to drop the signal voltage from 9V to 5V using two resistors in series which forms a potential divider. Try 18k and 22k with the bottom end going to 0V (GND) and the junction to the Arduino.

Andy
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Grumble



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PostPosted: Sun Apr 15, 2018 5:59 am    Post subject: Reply with quote  Mark this post and the followings unread

Or use a zener diode (4v7) with a resistor of ~10k
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stolenfat



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PostPosted: Sun Apr 15, 2018 12:10 pm    Post subject: Reply with quote  Mark this post and the followings unread

thanks for the clarification mates. I'll bust out my multimeter and see what I get when I get started.
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Grumble



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PostPosted: Sun Apr 15, 2018 11:12 pm    Post subject: Reply with quote  Mark this post and the followings unread

Grumble wrote:
Or use a zener diode (4v7) with a resistor of ~10k

In fact, you could leave out the zener and just use a resistor, because of the input configuration of the (Atmel) processor itself.
See: http://electro-music.com/forum/topic-68022.html

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stolenfat



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PostPosted: Tue Apr 17, 2018 9:51 am    Post subject: Reply with quote  Mark this post and the followings unread

I'm pretty sure I understand what your saying... so i doodled up a quick ms paint just to make sure. Set up connections like in this pictogram right?

All I gotta do is find the proper values.

-Cal


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Grumble



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PostPosted: Tue Apr 17, 2018 11:18 am    Post subject: Reply with quote  Mark this post and the followings unread

if you are going from a lunatta output to an arduino input, just connect a 10kohm resistor between the two, the input circuit of the arduino does the rest.
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