hi all, 

i made a small program which uses GPIO to scan a keypad matrix and send OSC data to pd
it depends on liblo and libbcm2835
it's very specific to my project but could help someone...
code is here : https://github.com/avilleret/pianophone

cheers

a

--
do it yourself                      
http://antoine.villeret.free.fr


2013/1/25 Charles Goyard <cg@fsck.fr>
Hi Miller,

Miller Puckette wrote:
> I think either I or a grad student (we'll see) will be writing a Pd extern
> to do this efficiently -- for the moment it would be possible with a Python
> script (using netsend/netreceive in Pd) but having an extern would be more
> lightweight and probably more robust.

great, thanks! Meanwhile I found out about webiopi, which can act as a
placeholder ATM. (http://code.google.com/p/webiopi/wiki/RESTAPI)

Will you use /dev/mem and require root privileges, or the
/sys/class/gpio filesystem?  (see
http://www.raspberrypi.org/phpBB3/viewtopic.php?f=29&t=9667&p=198848 for
how to change permissions, non-standard !)

--
Charlot

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