Setup Wifi Dongle

Setting Up WiFi on the ODROID with a USB Dongle

1. First, install the necessary tools:

   sudo apt-get install wireless-tools wpasupplicant

2. Check that the ODROID recognizes the device and loads the proper driver:

   dmesg | tail

3. Scan for available networks to check that the device functions properly.

   sudo iwlist wlan0 scan

4. Configure the network interfaces. In order to access the file, you need to become root. Type the password when prompted.

   sudo -s
   echo -e "\nauto wlan0 \niface wlan0 inet dhcp \n\twpa-ssid OLIN-ROBOTICS\n\twpa-psk R0B0TS-RULE" >> /etc/network/interfaces

5. Configure the WPA credentials for your network. Enter the password when prompted.

   wpa_passphrase  OLIN-ROBOTICS >> /etc/wpa_supplicant/wpa_supplicant_OLIN-ROBOTICS.conf 

6. Try to connect to network with the given configuration. You should see an output with UP highlighted.

   sudo wpa_supplicant -B -D wext -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant_OLIN-ROBOTICS.conf 
   ip link show wlan0 | grep UP

   Tip : if you messed up and have multiple processes running wpa_supplicant, get rid of them:

   ps -ef | grep  "wpa_"
   sudo kill $(pgrep -f "wpa_supplicant -B")

7. Setup IP with the router.

   sudo dhclient -v -r wlan0

8. Restart wlan0.

   sudo ifdown wlan0 && sudo ifup wlan0

9. Check network connection status.

   iwconfig # CHECKS WIRELESS DEVICE STATUS
   ifconfig # CHECKS GENERAL NETWORK STATUS

10. Check subnet connectivity. Your computer should be connected to OLIN-ROBOTICS, if you configured your WPA credentials with OLIN-ROBOTICS.

    ping <your_computer_ip>

11. Check External Network Connectivity. Disable network sharing via ethernet cable if you had it set up, to verify the connection.

    ping www.google.com