Set up Wifi connection with static IP on Raspbian

Static IP Wifi for Raspbian.md

sudo nano /etc/network/interfaces

##Add/Edit these lines
iface demo inet static
address 192.168.0.4
netmask 255.255.255.0
gateway 192.168.0.1
#

sudo nano /etc/wpa_supplicant/wpa_supplicant.conf
#Add these lines
network={
 ssid="your-ssid-here"
 scan_ssid=0
 psk="your-pre-shared-key-here"
 proto=RSN
 key_mgmt=WPA-PSK
 pairwise=CCMP
 auth_alg=OPEN
 priority=1
}
#

sudo reboot

##References

1. http://www.bot-thoughts.com/2013/01/raspberry-pi-wifi-static-ip.html
2. http://raspisimon.no-ip.org/ipaddress.php