[Gambas-user] Raspberry pi question

[Benoît Minisini]

Le 28/07/2012 19:24, Christer Johansson a écrit :
>
>> Le 26/07/2012 10:53, fulippo_fulippo at ...152... a écrit :
>>> Hi
>>> Somebody know how to use gpio port with Gambas 2/3 on Raspberry pi
>>>
>>> in python is possible there is som libraries
>>>
>>> thank's
>>>
>>
>> I don't know what python does.
>>
>> According to:
>>
>> 	http://www.haifux.org/lectures/258/gpio_spi_i2c_userspace.pdf
>>
>> You have some directories in /sys to make gpio accessible from user
>> space, and then other directories to program them.
>>
>> I don't know if it fits your needs without more details. Can
>> you give them?
>
> He may be talking about this...
>
>    http://pypi.python.org/pypi/RPi.GPIO
>
> I think this code is used in the Python modules...
>
>    http://elinux.org/RPi_Low-level_peripherals#GPIO_Driving_Example_.28C.29
>
> Since I finally got mine RasPi and just gotten Gambas3 3.1.1 up running I'm
> also very interested in this topic (and I'm sure lot's of other people are
> to) but since I'm quite lost when it comes to C there is some reading to do.
>
> A guy named Gordon have already made a C library named WiringPi but I have no
> clue on how to use it from within Gambas3 or if it's even possible?
>
>    https://projects.drogon.net/raspberry-pi/wiringpi/
>
> Having an way to read/write RasPi's GPIO, I2C and SPI from Gambas3 would be
> golden and I wished I known C/C++ and was talented enough to write a component :-/
>
> BTW - Gambas3 3.1.1 seems to run fine on the RasPi using Xfce on Debian Squeeze,
> haven't done much so far but at least it's up running and reading/writing the GPIO
> is next so any input is appreciated.
>
> /CJ
>

Maybe I say something stupid, but there is a shell script example there:

http://elinux.org/RPi_Low-level_peripherals#GPIO_Driving_Example_.28Shell_script.29

It is just a matter of writing or reading files in /sys/class/gpio as 
root. So you can use the standard file functions in Gambas for doing the 
same thing.

Couldn't it be a simple solution?

-- 
Benoît Minisini