note

• 查詢那些程式開了那些 port
  • ​http://herolin.twbbs.org/entry/how-to-check-port-which-used-program-for-windows-and-linux/
    • losf 無法使用。
• 規格參考：
  • ​http://item.taobao.com/item.htm?spm=a230r.1.14.137.dn3xh0&id=21948660179
  • ​http://item.taobao.com/item.htm?id=19030341711&ali_refid=a3_420791_1007:1104801906:7::87a956e4b0f948e2a6c62939556f1359&ali_trackid=1_87a956e4b0f948e2a6c62939556f1359&spm=0.0.0.0.36LCkX
  • ​http://detail.tmall.com/item.htm?spm=a230r.1.14.13.QbH1Co&id=15504630386&ad_id=&am_id=&cm_id=140105335569ed55e27b&pm_id=

設定

鍵盤設定 keyboard layout

• 將鍵盤設定為 us layout 配置，否則「|」、「#」、「"」會打不出來。

  sudo vim.tiny /etc/default/keyboard
  更改
  XKBLAYOUT="us"
  

無線網路設定

• WPA 密碼設定：
  • 設定檔：/etc/network/interfaces

    # allow-hotplug wlan0
    iface wlan0 inet manual
    wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf
    iface default inet static
        address 10.1.2.20
        netmask 255.255.255.0
        network 10.1.2.0
        gateway 10.1.2.1
    

• 使用 DHCP 設定 IP：

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

• 手動設定 IP 設定檔：/etc/wpa_supplicant/wpa_supplicant.conf

  ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
  update_config=1
  
  network={
      ssid="Your SSID Here"
      proto=RSN
      key_mgmt=WPA-PSK
      pairwise=CCMP TKIP
      group=CCMP TKIP
      psk="YourPresharedKeyHere"
  }
  

• 重新啟動無線網路。

  # sudo ifdown wlan0
  # sudo ifup wlan0
  ioctl[SIOCSIWAP]: Operation not permitted
  ioctl[SIOCSIWENCODEEXT]: Invalid argument
  ioctl[SIOCSIWENCODEEXT]: Invalid argument
  

• 觀看無線網路狀態：

  # iwconfig
  lo        no wireless extensions.
  
  eth1      no wireless extensions.
  
  wlan0     IEEE 802.11bg  ESSID:"Your SSID Here"  Nickname:"<WIFI@REALTEK>"
            Mode:Managed  Frequency:2.442 GHz  Access Point: NN:NN:NN:NN:NN:NN   
            Bit Rate:54 Mb/s   Sensitivity:0/0  
            Retry:off   RTS thr:off   Fragment thr:off
            Power Management:off
            Link Quality=100/100  Signal level=95/100  Noise level=0/100
            Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
            Tx excessive retries:0  Invalid misc:0   Missed beacon:0
  
  eth0      no wireless extensions.
  

套件

webcam1

• ​http://gsyan888.blogspot.tw/2013/04/raspberry-pi-webcam-server.html
• ​http://pingbin.com/2012/12/raspberry-pi-web-cam-server-motion/
• 設定檔：

      #lsusb   看是否抓到 webcam
  
      #sudo vim.tiny /etc/motion/motion  設定
      daemon : 設定為 on
      webcam_localhost : 設定為 off 
  
      #sudo vim.tiny /etc/default/motion
      start_motion_daemon=yes
  

• 啟動：

      #sudo service motion start
  

• 觀看服務狀態：

      #netstat -na | grep 8081
      tcp        0      0 0.0.0.0:8081            0.0.0.0:*               LISTEN
  

• 於 browser 中輸入「​http://192.168.2.1:8081」即可觀看

webcam2

• h.264 --> compress --> redirect to web browser
• h.264 --> nfs --> compress --> web browser
• keywork: raspberry pi ffmpeg streaming
• ​http://3homers.blogspot.tw/2008/06/ffmpeg-h264.html
• ​http://www.raspberrypi.org/camera , no web
• ​http://blog.miguelgrinberg.com/post/stream-video-from-the-raspberry-pi-camera-to-web-browsers-even-on-ios-and-android Stream Video from the Raspberry Pi Camera to Web Browser
• ​http://www.raspberrypi.org/phpBB3/viewtopic.php?f=26&t=7557 Real-time webcam streaming tutorial, try change /dev/video0 to RPI camera.
• ​http://thkaw.pixnet.net/blog/post/97918585-%5Braspberry-pi%5D_%E5%B9%ABpi%E8%A3%9D%E4%B8%8Awebcam%E5%81%9Astream-server%E5%8D%B3%E6%99%82%E5%82%B3%E8%BC%B8 [Raspberry Pi]_幫Pi裝上Webcam做stream server即時傳輸監控影像, mjpeg
• ​http://www.raspberrypi.org/archives/3890 , use netcat and mplayer, not work.
  • ​http://blog.timc3.com/2009/02/10/mplayer-disable-lirc/ error Failed to open LIRC support. You will not be able to use your remote control.
• ​https://www.modmypi.com/blog/raspberry-pi-camera-board-raspivid-command-list raspivid
• ​http://blog.longwin.com.tw/2012/02/nc-data-send-socket-server-2012/ command nc
• ​http://tw.myblog.yahoo.com/stevegigijoe/article?mid=183&sc=1 h.264
• ​http://mplayerhq.hu/pipermail/mplayer-users/2011-August/083160.html how to play h.264 raw file
• ​http://www.raspberrypi.org/phpBB3/viewtopic.php?t=45368 Streaming Raspberry Pi Camera H264 into HTML over RTMP
  • ​http://www.longtailvideo.com/jw-player/download/thank-you
• ​http://3homers.blogspot.tw/2008/06/ffmpeg-h264.html

  ffmpeg -i inputfile -vcodec libx264 outputfile.mp4
  

CNC

• ​http://bb-lcnc.blogspot.tw/2013/09/new-machinekit-image-available.html

GPIO

• ​https://pypi.python.org/pypi/pip
• ​http://cheng-min-i-taiwan.blogspot.tw/2013/04/raspberry-pi-python.html
• ​https://code.google.com/p/raspberry-gpio-python/wiki/Outputs
• ​https://pypi.python.org/pypi/RPi.GPIO
• ​http://yehnan.blogspot.tw/2012/07/raspberry-pigpioled.html

mp3 player

• ​http://www.raspberrypi-spy.co.uk/2013/06/raspberry-pi-command-line-audio/

      sudo apt-get -y install mpg321
      mpg321 test.mp3
  

作品

• ​http://www.theregister.co.uk/2013/02/13/pi_carbot/ 自走車

Reference

• ​http://kerneldriver.wordpress.com/2012/10/21/configuring-wpa2-using-wpa_supplicant-on-the-raspberry-pi/