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ROSbot 2R / 2 PRO / 2 - Network configuration (legacy images)

ROSbot 2R, 2 PRO and 2 shipped with older operating system images that configure the network differently. If you installed Husarion OS on them, follow the Network page instead.

Using display, mouse and keyboard​

ROSbot is basically a computer running Ubuntu, so let's open it like a standard PC computer.

  1. Plug in a display with HDMI, mouse and keyboard into the USB port in the rear panel of ROSbot.
  2. Turn on the robot and wait until it boots.
  3. Open a terminal.

ROSbot 2R LxQT desktop environment

warning

ROSbot's graphical desktop environment requires about 3 minutes to start during first boot. The following ones require only about 1 minute after power on.

Connecting to Wi-Fi with netplan​

Find available Wi-Fi networks with this Linux command:

husarion@rosbot2r:~$ ... 
sudo iwlist wlan0 scan

ROSbot 2R is using netplan instead of GUI Wi-Fi manager. It allows you to have all physical network interfaces configured from a single text file.

To connect your ROSbot to a Wi-Fi network edit /etc/netplan/01-network-manager-all.yaml file, eg. with nano:

husarion@rosbot2r:~$ ... 
sudo nano /etc/netplan/01-network-manager-all.yaml

And modify lines 22-23 by replacing "PLACE_YOUR_WIFI_SSID_HERE" with your SSID (Wi-Fi network name) and "PLACE_YOUR_WIFI_PASSWORD_HERE" with your Wi-Fi password:

/etc/netplan/01-network-manager-all.yaml
network:
  version: 2
  renderer: networkd

  ethernets:

    all-eths:
      match:
        name: eth*
      dhcp4: no
      dhcp6: no
      addresses:
       - 192.168.77.2/24

  wifis:

    wlan0:  # external USB Wi-Fi card (with antenna)
      dhcp4: true
      dhcp6: true
      optional: true
      access-points:
        "PLACE_YOUR_WIFI_SSID_HERE":
          password: "PLACE_YOUR_WIFI_PASSWORD_HERE"

save the file then, apply the new network setup:

husarion@rosbot2r:~$ ... 
sudo netplan apply

You can check to which Wi-Fi network your ROSbot is connected by using this command:

husarion@rosbot2r:~$ ... 
sudo iwgetid

If your Wi-Fi network setup is more complex (eg. if you want to connect to Eduroam based Wi-Fi that is popular in many universities), visit netplan configuration examples.

Open Linux terminal and type

husarion@rosbot2r:~$ ... 
sudo ifconfig

to find your IP address (for wlan1 network interface). Save it for later.

Using an Ethernet adapter​

In the ROSbot 2R set there is one USB-Ethernet card.

  1. Turn on the robot and wait until it boots.

  2. Plug in the Ethernet adapter (included in a set) to a USB port in the rear panel.

  3. Plug in one end of the Ethernet cable into your computer and another one to the adapter.

  4. Set a static IP address on your computer for its Ethernet card in a 192.168.77.0/24 subnet, eg:

    • IPv4: 192.168.77.27
    • mask: 255.255.255.0

  5. To connect with ROSbot via ssh, type in your terminal application:

    user@mylaptop:~$ ...
    ssh husarion@192.168.77.2

    The default password for user husarion is also husarion.

At this point the Wi-Fi configuration process is the same as in the section above

Access the terminal over Wi-Fi​

While ROSbot is connected to a Wi-Fi network, you can access it by using its IPv4 address by SSH:

user@mylaptop:~$ ...
ssh husarion@ROSBOT_IP