GPIO sounds like a microcip PIC io port.
On Fri, Mar 23, 2012 at 5:29 PM, dreamer dreamer@puikheid.nl wrote:
On the RaspberryPi website the question about the absence of audio-input was answered recently:
There are no inbuilt Audio ADC’s so there would be a cost adder – everyone was sat on my head to get costs down. They can be easily added via the GPIO.
So, still a possibility in an embedded openstomp-ish device.
On Sun, Mar 4, 2012 at 6:26 PM, dreamer dreamer@puikheid.nl wrote:
An arm-based device I would like to have pd on is the Pandora, based on the OMAP3530. Which has audio-in/out and gpio on a single plug.
Combining that with a stompbox that holds, for instance, an msp430 (launchpad, by ti) with an lcd-screen and some nobs would make for a very nice interface :)
Still looking in to compiling for their OS. The pandora is then again a very small niche, hence I was reflecting on the current interest towards the RasPi. However I didn't realize this device doesn't have line-in, so that indeed is a little discouraging.
Alexander
On Sun, Mar 4, 2012 at 6:15 PM, Ed Kelly morph_2016@yahoo.co.uk wrote:
Hmm. Doesn't seem to have an audio input though, so perhaps it'll work
for a
synthesizer but not for a "stompbox" straight away. The site recommends
a
"USB microphone" for audio in, so that's not encouraging... Ed
So what about a Raspberry Pi inside a stompbox that runs pd? But could the arm11 in that thing handle awesum (sic) audio
processing? ;)
Well the Raspberry Pi is based on an ARM chip. Does anyone know how
these
chips compare when running RJDJ or libPD applications? Perhaps this is a possibility, without too much modification of libPD or even RJDJ. ...but someone would need to write a host for the Raspberry Pi.
What do you need by "writing a host for Pd"? Something like a very
simple
OS?
Er..well I can see they run Linux, so I think I was mistaken. My head
was in
the world of BASIC - nostalgia gets in the way of the facts! Of course, Pd would need to be compiled for the hardware.
I think we need to wait until one of us gets one and tries it out
before we
find out what they're capable of. I've expressed interest, but they're massively oversubscribed.
I bought mine yesterday, and should receive it in about a week. The
first
thing I'll do is try to install Pd.
On the other hand, the idea of a dedicated PDOS isn't a bad idea... Ed
Yes, how hard would it be to have this?
Well, it could be a highly stripped-down version of Linux. I don't think anyone has the time to write an OS, so I was being mischievous in
suggesting
this. I am having some funny ideas today... Ed
Pierre.
Even if it was just the PD core, it would enhance the educational scope
of
the Raspberry Pi - which is the whole point of this single-board
computer (I
learned my first programming on a Sinclair ZX Spectrum in the 1980s).
I never thought I would see the day when the BBC Microcomputer would
rule
the world in telecommunications, but ARM chips and the ARM RISC
instruction
set are running every smartphone on the planet right now (correct me
if I'm
wrong :) and some of these smartphones run RJDJ and libPD really well.
Dataflow music programming in schools. Maybe...
Ed
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Billy Stiltner