Setup Snickerdoodle WiFi

The next couple blog posts are about configuring Linux on the Snickerdoodle.  In order to do so, one must be able to communicate with the board via the USB port.  You will need to download the STM USB-UART driver here before the Snickerdoodle is recognized by your computer.  You will also need to download a terminal program such as Putty or TeraTerm.  Once you have downloaded the UART driver an a terminal program, power on the Snickerdoodle by connecting it to the PC via the USB cable.  After powering on, open up Tera Term, click the "Serial" option and select the STMicroelectronics Virtual Com Port.  If you do not see the port you might have to unplug the Snickerdoodle, close Tera Term, and try it again.  Make sure that you have a properly configured SD card installed in the system.

To login use:
username: admin
password: snickerdoodle

The next step is to get super user privileges by typing 'sudo -i' and then your new password.

Once you are in the vi editor you will need to type the below commands exactly to delete all lines in the file and to set it up for pasting from the clipboard

1. dd   [type this as many times as you need to erase all lines as 'dd' erases the current line]
2. esc
3. shift  i [to enter insert mode]

now the vi editor is ready for you to paste in the new contents of the file.  Copy one of the snippets below and past it into the editor by right clicking and then hitting ok as shown below.  Make sure to replace the "password" field with your actual password.  I would recommend first copying the below snippet to a word pad, updating the password, and then copying that to the vi terminal.

Home Network

RIT Network

ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=0
update_config=1
 
network={
        auth_alg=OPEN
        key_mgmt=WPA-PSK
        psk="password"
        ssid="NETGEAR26"
        proto=RSN
        mode=0
}

ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=0
update_config=1
 
network={
               auth_alg=OPEN
               key_mgmt=NONE
               mode=0
               ssid="RIT-WiFi"
}

After typing in your network credentials, save them by typing:

1. esc
2. shift   ;  
   
3. x
4. enter

type 'reboot'

After the system reboots, login as usual and then type ifconfig.  You should see that you now have an IP address for wlan0.  Note that if you are on campus you might have to have your Snickerdoodle registered on the network by sending the HWaddr number to your system administrator.

Congratulations, your Snickerdoodle is now online!