Hi Steven,

I'm also interested. I'll received a Pi 3 soon and I'll want to use the
GPIO as well, as well as looking
at performances issues, especially at the IDE level.

Have you tried to use:

- command line manipulation of the GPIO via OSProcess ?

Create a GPIO file access:
echo 11 > /sys/class/gpio/export

Configure the Pin Direction (In/Out):
echo out > /sys/class/gpio/gpio11/direction

Write a value to turn on the LED using the GPIO11:
echo 1 > /sys/class/gpio/gpio11/value

*Now your led should be ON!!!*

Write a value to clear the LED using the GPIO11
echo 0 > /sys/class/gpio/gpio11/value

*Now your led should be OFF!!!*

Delete the created GPIO (11)
echo 11 > /sys/class/gpio/unexport

(you can run those commands from Pharo)

Those commands reach ~ 4 kHz on toggling on or off a gpio pin.

Thierry

2016-06-14 16:28 GMT+02:00 sergio ruiz <sergio....@gmail.com>:

> Please keep us posted on this.
>
> I have a project that his waiting on this.
>
> Thanks!
>
>
> > On Jun 13, 2016, at 11:10 AM, Steven Costiou <steven.cost...@kloum.io>
> wrote:
> >
> > Hi,
> >
> > i have tried to make it work but so far i can't get it right. Have you
> been able to work with it ?
> >
> > I used pharo 5 latest non spur image with the non spur vm. It works on a
> raspberry 3 but it is very slow. I tried the led examples, the leds do not
> seem to be affected (some are on, some off, with a variable intensity).
> >
> >
> > Is there any specific settings needed for this to work ?
> >
> > Thanks,
> >
> > Steven.
> >
> >
> > Le 2016-05-27 20:11, sergio ruiz a écrit :
> >
> >> does anyone know if if pharo 5 runs on raspberry pi yet?
> >>
> >> if so, i can poke around and see if i can get WiringPi to install on
> pharo 5.
> >>
> >> thanks!
> >>
> >>
> >>> On May 27, 2016, at 1:56 PM, sergio ruiz <sergio....@gmail.com> wrote:
> >>>
> >>>>
> >>>> The raspberry pi slave seems to be disconnected so do not know the
> >>>> status:
> >>>> Library:
> >>>>
> https://ci.inria.fr/pharo-contribution/job/WiringPi-ARM-AutomatedBuild/
> >>>> Pharo code ( probably on Pharo 3 or 4).
> >>>> http://smalltalkhub.com/#!/~jeanbaptistearnaud/WiringPi
> >>>
> >>> great! i'll take a look at those!
> >>>
> >>> thanks!
> >>>
> >>> ----
> >>> peace,
> >>> sergio
> >>> photographer, journalist, visionary
> >>> #BitMessage BM-NBaswViL21xqgg9STRJjaJaUoyiNe2dV
> >>> http://www.Village-Buzz.com
> >>> http://www.ThoseOptimizeGuys.com
> >>> http://www.CodingForHire.com
> >>> http://www.coffee-black.com
> >>> http://www.painlessfrugality.com
> >>> http://www.twitter.com/sergio_101
> >>> http://www.facebook.com/sergio101
> >>
> >> ----
> >> peace,
> >> sergio
> >> photographer, journalist, visionary
> >> #BitMessage BM-NBaswViL21xqgg9STRJjaJaUoyiNe2dV
> >> http://www.Village-Buzz.com
> >> http://www.ThoseOptimizeGuys.com
> >> http://www.CodingForHire.com
> >> http://www.coffee-black.com
> >> http://www.painlessfrugality.com
> >> http://www.twitter.com/sergio_101
> >> http://www.facebook.com/sergio101
> >
> > --
> > kloum.io
>
> ----
> peace,
> sergio
> photographer, journalist, visionary
> #BitMessage BM-NBaswViL21xqgg9STRJjaJaUoyiNe2dV
> http://www.Village-Buzz.com
> http://www.ThoseOptimizeGuys.com
> http://www.coffee-black.com
> http://www.painlessfrugality.com
> http://www.twitter.com/sergio_101
> http://www.facebook.com/sergio101
>
>

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