[PD] Small single board computer recommendations?

[Ivica Ico Bukvic]

In 2014 I did a RPi (v.1. rev.B) orchestra as part of a gifted summer 
program for middle school kids. For approx. $100, you can get everything 
you need to get it going, including soundcard, speakers (powered through 
RPi), mic, and a Modern Device LOP shield that essentially replaces 
Arduino. Pair that with pd-l2ork's K-12 module and you get all the 
externals for interacting with GPIO and I2S, including 10 channels of 
digital in and out, 10 channels of analog out (hardware PWM on one 
dedicated pin and software PWM on all 10 gpio pins), and 8 channels of 
analog in (via MCP3008->I2S) custom-tailored for this setup. For more 
info see:

http://l2ork.music.vt.edu/main/wp-content/uploads/2014/03/pd-l2ork-k12-rpi-002.png
http://l2ork.music.vt.edu/main/wp-content/uploads/2014/03/pd-l2ork-k12-rpi-001.png
http://l2ork.music.vt.edu/main/wp-content/uploads/2014/03/pd-l2ork-k12-rpi-003.png
http://l2ork.music.vt.edu/main/wp-content/uploads/2010/03/pd-l2ork-K12.jpg
http://l2ork.music.vt.edu/main/make-your-own-l2ork/software/raspberry-pi/

HTH

Best,

Ico

On 9/21/2015 1:11 PM, William Huston wrote:
> I hope this is relevant to this list!
>
> I am having big dreams about what can be done with cheap, tiny 
> computers running PD. Look at the various Laptop Orchestras popping 
> up. So exciting!
>
> My minimum specification is:
>
> * Pi-like horsepower
> * 10x buffered ADCs with 12bit precision
> * 4x high quality isolated 24 bit @ 48 khz audio ins and 4x out
>
> I want to build 100,
> But first I need to build 1.
>
> It seems the big disadvantage of an Arduino is it is underpowered vs. 
> a RPi quad core (w/faster CPU, more memory, etc). But it seems people 
> love Arduino due to its IO pins. Many ADCs for controllers and sensors!
>
> Whereas the RPi is just the opposite. Also high-quality audio both in 
> and out on a Pi seems like a problem people face. Has anyone fixed the 
> issue yet with USB2 stability yet?
>
> Do some people use a Pi for CPU and an Arduinio just for IO? (cf. 
> Arduberry) This seems like what an Udoo is (both in one unit). Udoo 
> comments?
>
> Along these lines, I have found I really like the specs of the Wolfson 
> Audio card. The chip it's based on (WM5102) is a 6x6.
> Any experiences to share?
>
> I haven't found a buffered ADC solution for high resolution sensors 
> yet. I'm just starting a search of chips capable of this, and found 
> about 6 so far... So I'm guessing there are several possible boards. 
> Again, any recommendations appreciated (esp. of their voltage ranges 
> can be scaled).
>
> Are there any other single board computers I should be looking at 
> which might help keep h/w costs down?
>
> Thanks!
>
>
>
> -- 
> --
> May you, and all beings
> be happy and free from suffering :)
> -- ancient Buddhist Prayer (Metta)
>
>
>
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-- 
Ivica Ico Bukvic, D.M.A.
Associate Professor
Computer Music
ICAT Senior Fellow
Director -- DISIS, L2Ork
Virginia Tech
School of Performing Arts – 0141
Blacksburg, VA 24061
(540) 231-6139
ico at vt.edu
www.performingarts.vt.edu
disis.icat.vt.edu
l2ork.icat.vt.edu
ico.bukvic.net

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