28 Jan
2013
28 Jan
'13
3:14 p.m.
Hi list,
I could make use of gpio (as output) within pd with just [textfile] :
on the command-line:
echo gpio17 > /sys/class/gpio/export echo out > /sys/class/gpio/gpio17/direction chown charles /sys/class/gpio/gpio17/value
inside pd:
[ set 1 ( [ write /sys/class/gpio/gpio17/value cr ( | [ textfile ]
works.
I use it to drive a light system from a track of a audio file containing only square waves at a given frequency (say, cues embedded inside an audio file).
I basically snapshot~ and see if it's over or below 0, and turn the gpio on/off on change.
I started using pd on the pi three hours ago and have it playing audio and banging the gpio in no time.
Thanks to all for this wonderful community.
I'm very happy ;).
--
Charles