[PD] how to install and use GPIO external

[Josh Downing]

How do I install this external? I can open the gpio-help.pd file in pure
data but when I try to open it I get the attached error message
(pd_error_message.png). I assume this is because I haven't installed the
external. I copied the contents of the pi-externs.tgz file that I
downloaded from Miller's site into the following path on my pi:
"/home/pi/pd-externals/". Isn't there something else I need to do though to
install this so that I can use it in PD?

Also, once I get this installed I want to setup GPIO 17 as an input and
then read the state of it. I'm going to alternate between applying 3.3V and
GND to the GPIO 17 pin and I would like to see the high/low status of the
pin change in pure data. See attached screenshot
(gpio_help_configuration.png) for how I configured Jaime's gpio-help.pd
file to do this. All I did was change output 1 to output 0 so that GPIO 17
would be configured as an input. If I want to see the status of the pin
what will I look at in this script to see the high/low status of the pin?
Do I need to modify this script in any other way to be able to see this?

Really appreciate your help!
Josh




On Fri, Jun 14, 2013 at 6:21 AM, Julian Brooks <jbeezez at gmail.com> wrote:

> Meant to add:
>
> Any other issues give us a shout and if I can help, I will.
>
>
> On 13 June 2013 09:56, Julian Brooks <jbeezez at gmail.com> wrote:
>
>> Hi Josh,
>>
>> The thread you're after is this one:
>> gpio on the raspberry pi from within pd ?
>>
>> (ooh - big font)
>>
>> And Jaime's helpfile's attached.
>>
>>
>> That should do it.
>>
>>
>> Julian
>>
>>
>>
>> On 13 June 2013 06:37, Josh Downing <jndowning at gmail.com> wrote:
>>
>>> I'm trying to figure out how to use the [gpio] external and I'm totally
>>> lost on how to install it and then how to use it inside PD on my raspberry
>>> pi. I did download the external from Miller Puckette's website but that is
>>> about as far as I have been able to get. I would like to be able to
>>> configure 4 GPIO pins as inputs and read their state within my PD patch.
>>>
>>> Could anyone provide me with any help on how I would go about installing
>>> this patch and using it in PD on the pi? Also, I found a thread in the list
>>> serve archive where someone had attached a draft of instructions on how to
>>> install and use the GPIO external but unfortunately the attached file was
>>> not available. Could someone send me these instructions if you have them?
>>>
>>> Thanks,
>>> Josh
>>>
>>> _______________________________________________
>>> Pd-list at iem.at mailing list
>>> UNSUBSCRIBE and account-management ->
>>> http://lists.puredata.info/listinfo/pd-list
>>>
>>>
>>
>
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