Wednesday, January 30, 2013

Now that's the way it's supposed to work!

Raspberry pi playing video files from my network!

Monday, January 28, 2013

Snow


Sunday, January 20, 2013

Raspberry Pi!

I've joined the world of  Raspberry Pi owners, a cool little 500MHz computer the size of a credit card for $35!

Notes I've accumulated to make this work for me:
  • Install Debian GNU "Rasbian Wheezy" ISO onto a 4GB+ SD card
  • Follow the partition resizing instructions posted here by Simon the Pi man
  • Remember the vi editor key commands, as they are seldom used (like dd is delete line)!
  • Set the screen to align to my 52" Sony Bravia:
    • edit /boot/config.txt and set the overscan_* parameters:
    • left=20; right=22; top=-21; bottom=-16
  • Install some helpful tools, for example Wireshark:
    • sudo apt-get update
    • sudo apt-get install wireshark libpcap-dev
    • sudo cetcap cap_net_raw,cap_net__admin=eip /usr/bin/dumpcap
  • Set static IP for our robot (10.38.16.99), but also DHCP to the internet (/etc/network/interfaces)
  • Install OpenCV and other required tools:
    • sudo apt-get install git build-essential cmake libgtk2.0-dev python-dev python-numpy libavcodec-dev libavformat-dev libswscale-dev
    • mkdir OpenCV
    • cd OpenCV
    • cmake ..\OpenCV-2.4.3
    • make
    • sudo make install
  • Trying to follow along with FRC team 3574's use of OpenCV
  • Question becomes, "what possible frame rate might this deliver?"

      Saturday, January 12, 2013

      Sunday, January 6, 2013