Gpio Library

$ wget http://pypi.python.org/packages/source/R/RPi.GPIO/RPi.GPIO-0.X.X.tar.gz

$ tar zxf RPi.GPIO-0.X.X.tar.gz

$ cd RPi.GPIO-0.X.0

$ sudo python setup.py install

#!/usr/bin/python

# /**

#  @file breakout_testbech.py

#  @author  Oscar Gomez Fuente <oscargomezf@gmail.com>

#  @ingroup iElectronic

#  @date 14/05/2014

#  @version 1.1.0

#  @section DESCRIPTION

#   test bech to check GPIOs.

#       GPIO 23 -> output led green

#       GPIO 24 -> output led green

#       GPIO 18 -> pwm output led green

#       GPIO 4 -> clk output buzzer

#       GPIO 25 -> input switch

#  */

import sys

import wiringpi2

from time import sleep

DELAY = 2

song = [ 659, 659, 0, 659, 523, 659, 0, 784, 0, 0, 0, 392, 0, 0, 0, 523, 0, 0, 392, 0, 0, 330 ]

def pwm_dimm(io, delay):

        pin = 18 # only supported on this pin

        io.pinMode(pin, io.PWM_OUTPUT)

        #io.pwmSetClock(2)

        #io.pwmSetRange(10)

        for i in range(0, 1024, 1):

                io.pwmWrite(pin, i)

                io.delay(delay)

        for i in range(1024, -1, -1):

                io.pwmWrite(pin, i)

                io.delay(delay)

def leds(io):

        #config gpios output mode

        io.pinMode(23, io.OUTPUT)

        io.pinMode(24, io.OUTPUT)

        #Check led in GPIO23

        io.digitalWrite(23, 1)

        io.delay(2000)

        io.digitalWrite(23, 0)

        #Check led in GPIO24

        io.digitalWrite(24, 1)

        io.delay(2000)

        io.digitalWrite(24, 0)

def swith(io):

        #config gpio input mode

        io.pinMode(25, io.INPUT)

        print('Please press button')

        while (io.digitalRead(25) == io.HIGH):

                io.delay(100)

        print('Button pressed')

def tone(io, song):

        pin = 4 # only supported on this pin

        io.softToneCreate(pin)

        for i in range(len(song)):

                io.softToneWrite(pin, song[i])

                io.delay(200)

        io.softToneWrite(pin, 0)

        io.pinMode(pin, io.INPUT)

def clock(io, frecuency):

        pin = 4 # only supported on this pin

        io.pinMode(pin, io.GPIO_CLOCK)

        io.gpioClockSet(pin, frecuency)

        io.delay(2000)

        io.pinMode(pin, io.INPUT)

#config gpios with wiringpi2 library

io = wiringpi2.GPIO(wiringpi2.GPIO.WPI_MODE_GPIO)

#test bench leds

leds(io)

#test bench pwm led

pwm_dimm(io, DELAY)

#test bench input switch

swith(io)

#test bench tone

tone(io, song)

#test bench clock

clock(io, 5000)