-v, --verbose   enable verbose logging
-g, --gpio      the GPIO pin of the Raspberry Pi to control (default is 0)
-c, --channel   'channel' number to send to
                The 'channel' number sets the 'code' group to send.
                On the receiving socket device the 'code adjustment dial'
                is labelled I, II, III & IV, the same as on the remote
                control's 'code adjustment switch', but this parameter
                requires 1, 2, 3 or 4 (default is 1).
-b, --button    'button' number to 'press'
                The remote control has 8 buttons arranged in 4 rows. This
                parameter sets the row of buttons being 'pressed'. On the
                receiving socket device the 'channel adjustment dial'
                sets which button row corresponds to which receiving
                socket device, values are 1, 2, 3 or 4 (default is 1)
[on|off]        whether to send a 'turn on' command or a 'turn off'
                command (default is on)

git clone https://github.com/WiringPi/WiringPi-Python.git
cd WiringPi-Python/
git submodule update --init
sudo apt-get install python2.7-dev
sudo apt-get install python-setuptools
sudo python setup.py install

sudo python strogonanoff_sender.py --channel 1 --button 3 --gpio 8 on