Raspberry Pi Mini-bots

* [https://www.raspberrypi.org/products/pi-zero/ Raspberry Pi Zero]
* Install Jessie Lite [https://www.raspberrypi.org/downloads/raspbian/ Raspbian Jessie OS] 
   * [https://www.raspberrypi.org/documentation/installation/installing-images/README.md Installation instructions]
   * [http://blog.gbaman.info/?p=791 Setup for USB connectivity]
   * Configure your Pi with a fixed MAC address so you don't have to reconfigure windows networking every time you set it up. From [https://gist.github.com/Gadgetoid/319ecf8e3c5d3660e298], add the following line below to the end of your /boot/cmdline.txt file in your Jessie install.  Use a unique pair of MAC address for each Pi.  Note there is exactly one space between each term, and the whole cmdline.txt file is one line.  
     {{{
       g_ether.dev_addr=5a:77:1e:af:8e:9e g_ether.host_addr=72:8d:1f:c4:e8:ca
     }}}
* Install Bonjour Services from Apple.   This allows your windows machine to 'just know' the hostname raspberrypi.local.  See [https://support.apple.com/downloads/bonjour%2520for%2520windows Bonjour for Windows]
* Connect your Pi to the computer via a USB 2.0 port.   On the Pi use the usb port for data and power, not the one on the end (which is power, no data).
* Wait a while while the Pi boots and your USB drivers for the Pi are installed.  Once the light on the Pi should be solid green after a while and the driver is installed, continue.
* Set up connection sharing between Windows and the Pi.  
    * Go to Control Panel > Network and Sharing Center > Adapter Settings. 
    * Identify the name of the network corresponding to the Pi--Its a Unidentified Network, USB Ethernet/RNDIS Gadget.  Its probably something generic like "Ethernet 3".
    * Right click on your main ethernet card.  Pick Properties > Sharing Tab.  Check "Allow other network users to connect through this computer's internet connection, and pick the name of the home networking connection identified in the step above.  Click OK. 
* Connect to Pi: {{{ ssh pi@raspberrypi.local }}}   (password is raspberry)
* Configure Pi
   * Setup DNS: sudo nano /etc/resolv.conf  
         add: nameserver 8.8.8.8
   * sudo raspi-config
         ''What do we do in here?''
   * Update to latest software:
       * sudo apt-get update
       * sudo apt-get upgrade
* Install Java JDK: {{{ sudo apt-get install oracle-java8-jdk }}}
* Install [http://pi4j.com/ Pi4J]
   * see: http://www.savagehomeautomation.com/projects/pi4j-connecting-java-to-the-raspberry-pi.html
   * [https://www.youtube.com/watch?v=grItDpy3TRM video tutorial]
* Install git: {{{ sudo apt-get install git }}}
* Install [http://wiringpi.com/ wiringPi]: 
  {{{
    mkdir ~/dev;cd ~/dev
    git clone git://git.drogon.net/wiringPi
    cd wiringPi
    ./build  
   }}}
   * gpio -v
   * man gpio


Ultrasonic Range Sensor
* http://www.modmypi.com/blog/hc-sr04-ultrasonic-range-sensor-on-the-raspberry-pi