wifi dongle on Raspberry Pi

ref: http://www.fars-robotics.net/ dongle 就是piracast 唯一支援的 TP-LINK TL-WN725N

安裝 driver..
lsusb:

Bus 001 Device 011: ID 0bda:8179 Realtek Semiconductor Corp. 

uname -a:

Linux raspberrypi 3.12.20+ #687 PREEMPT Fri May 30 16:39:11 BST 2014 armv6l GNU/Linux

所以屬於：

rtl8188eu drivers for 3.12.18+ to 3.12.25+

3.12.20+ #687       - 8188eu-20140509.tar.gz

所以我要 download 的是...
https://dl.dropboxusercontent.com/u/80256631/8188eu-20140509.tar.gz

ko 裝完後，用 wpa_supplicant 的方式。
修改 /etc/wpa_supplicant/wpa_supplicant.conf
加上 ssid 和 psk 後，重新開機。

OK.

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為防止page 不見，copy 一下：

Installing rtl8188cus and rtl8188eu based wifi adaptors for raspbian using wpa_supplicant.

Default /etc/network/interfaces file as supplied in the raspbian image - do not edit

auto lo

iface lo inet loopback
iface eth0 inet dhcp

allow-hotplug wlan0
iface wlan0 inet manual
wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf
iface default inet dhcp

Edit the file /etc/wpa_supplicant/wpa_supplicant.conf and add the network={.....} section. Use the command sudo nano 
/etc/wpa_supplicant/wpa_supplicant.conf to open and edit the file. Exit the editor and save the file using keys cntl-X, 
Y, Enter.

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1

network={
    ssid="Your-Network-Name"
    psk="Your-Network-Password"
}

You may add additional network={.....} sections defining different networks if your Pi is mobile and you carry it 
around with you. This will allow you to connect to these other networks at various different locations without needing 
to change your set up.

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變成 4.1 版了。所以根據https://www.raspberrypi.org/forums/viewtopic.php?p=462982#p462982, uname -a 是 4.1.19+ ＃858
要 download 的就是..https://dl.dropboxusercontent.com/u/80256631/8188eu-4.1.19-858.tar.gz