Download the I2C libraries
  cd ~
  git clone https://github.com/adafruit/Adafruit_Python_PCA9685
  git clone https://github.com/adafruit/Adafruit_Python_LSM303
  git clone https://github.com/adafruit/Adafruit_Python_ADXL345
Install the libraries
  cd ~/Adafruit_Python_PCA9685
  sudo python setup.py install
  sudo python3 setup.py install
  cd ~/Adafruit_Python_LSM303
  sudo python setup.py install
  sudo python3 setup.py install
  cd ~/Adafruit_Python_ADXL345
  sudo python setup.py install
  sudo python3 setup.py install

Test the LSM303
  cd ~/Adafruit_Python_LSM303/examples
  chmod a+x simpletest.py 
  sudo python simpletest.py 
or test the ADXL345
  cd ~/Adafruit_Python_ADXL345/examples
  chmod a+x simpletest.py 
  sudo python simpletest.py 

Test the PCA9685 for LED
  ** Connect PCA9685 pin V+ to 3.3v (REMOVE THIS LATER)
  ** Connect PCA9685 pin 15 --> LED --> resistor --> GND
  cd ~/Adafruit_Python_PCA9685/examples
  python3
    >>> import Adafruit_PCA9685
    >>> pcadev = Adafruit_PCA9685.PCA9685()
    >>> pcadev.set_pwm(15, 0, 0)
    >>> pcadev.set_pwm(15, 0, 4005)

Test the PCA9685 for Servo
  ** Disconnect the cobbler
  ** Connect PCA9685 pin V+ to 5V connection on (This may not be enough ...)
  ** Connect PCA9685 servo connnection at 12 to server (Be sure to get it right)
  ** Read http://www.robotplatform.com/knowledge/servo/servo_tutorial.html
  ** Pulse every 20 msec (1/50 sec)
  ** Pulse width from 1 msec to 2 msec
  ** 4096/20 ~~ 200 and 4096/10 ~~ 400
  ** example program suggests 150 to 600
  ** we will test it!
  ** If Raspberry Pi stops working, we will need battery packs!
  cd ~/Adafruit_Python_PCA9685/examples
  python3
    >>> import Adafruit_PCA9685
    >>> pcadev = Adafruit_PCA9685.PCA9685()
    >>> pcadev.set_pwm_freq(50)
    >>> pcadev.set_pwm(12, 0, 600)
    experiment to you see the limits

Try out the level software
  *** It's in this directory at levelit.py
  *** Think of some way to modify it...

Install web server (should be already done)
  sudo apt-get -y install lighttpd
  ** Load page to test -- http://uncacsci-pi-X.cs.unca.edu
  sudo chown www-data:www-data /var/www/html
  sudo chmod 775 /var/www/html
  sudo adduser YOURLOGIN www-data
  ** log in and out

Install CGI stuff (This can be difficult)
  *** You must modify /etc/lighttpd/lighttpd.conf
  *** This can be hard.... Follow me
  *** Save the old /etc/lighttpd/lighttpd.conf
  cp /etc/lighttpd/lighttpd.conf ~
  *** Download the new lighttpd.conf from this directory
  *** replace present lighttpd.conf
  cp ~/Downloads/lighttpd.conf /etc/lighttpd
  *** Check out the differences
  diff /etc/lighttpd/lighttpd.conf ~/lighttpd.conf
  *** add www-data to needed groups
  sudo adduser www-data gpio
  sudo adduser www-data i2c
  *** restart lighttpd
  sudo service lighttpd restart

Test CGI stuff
  ** create testit directory...
  cd /var/www/html
  mkdir testit
  cd testit
  *** Download the test.cgi from this directory
  *** Copy into testit directory
  cp ~/Downloads/test.cgi .
  *** make sure it is exectable
  chmod a+x test.cgi
  ./test.cgi
  *** Try to load it remotely
  http://www.uncacsci-pi-X.cs.unca.edu/testit/test.cgi

Test I2C CGI stuff
  *** Download listi2c.cgi from this directory
  *** Copy into this directory
  cp ~/Downloads/listi2c.cgi .
  chmod a+x listi2c.cgi
  ./listi2c.cgi
  *** Try to load remotely
  http://www.uncacsci-pi-X.cs.unca.edu/testit/listi2c.cgi

Test I2C devices
  *** Repeat above for acctest.cgi, ledon.cgi, ledoff.cgi