Setting up wlan0 wifi on Jetson TK1

jetson_wlan0_config.md

Edit /etc/network/interfaces :

# interfaces(5) file used by ifup(8) and ifdown(8)
# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d

auto wlan0
iface wlan0 inet dhcp
        wireless-essid MyHomeWifi
wpa_conf /etc/wpa_supplicant.conf

Edit /etc/wpa_supplicant.conf:

network={
ssid="MyHomeWifi"
priority=5
psk=17bab633a283237145193182bb17bab633a283237145193182bbbfed62a1e286
}

You can generate the network block above by using wpa_passphrase:

wpa_passphrase MyHomeWifi passphrase

Removing unwanted network interfaces

Edit /etc/udev/rules.d/70-persistent-net.rules to remove the network entries you don't want (such as wlan2 instead of wlan0)