System basic function description

1. Robot system introduction

System introduction
Ubuntu is the most widely used Linux operating system in personal desktop operating systems. For beginners, it is a good choice to be familiar with the Linux environment or some embedded hardware operating systems. The Ubuntu official website also released a dedicated operating system for JN.

System Function Introduction
myStudio: Firmware burning software, used to update and burn new versions of firmware
myBlockly: Graphical programming software, you can directly drag and drop blocks to form running codes and control the robot arm
ROS1 Shell: Directly enter the compiled ROS1 environment, you can directly enter the corresponding instructions, and run the corresponding ROS1 code
ROS2 Shell: Directly enter the compiled ROS2 environment, you can directly enter the corresponding instructions, and run the corresponding ROS2 code
Github-ElephantRobotics: Elephant Robotics official open source code repository
Home-ElephantRobotics: Elephant Robotics official website homepage
UserManual - CN/EN: Machine manual, including all content about robot arm control
WiFi_ON/OFF: WiFi switch, click to turn on/off WiFi function
HotSpot_ON/OFF: Hotspot switch, click to turn on/off hotspot function, the hotspot name after turning on is ElephantRobotics_AP_XXXX
Language Support: System language setting, click to enter the system language setting interface

2. System password description

Power-on account password & VNC connection password & SSH connection password & administrator account password
Unified as: Elephant
How to define a new password
Change account password
Use shortcut keys ctrl + alt + T to open the terminal
Enter passwd to modify the account password
Enter the new password twice
Change VNC connection password
Use shortcut keys ctrl + alt + T to open the terminal
Enter vncpasswd to modify the account password
Enter the new password twice
Change SSH connection password
The administrator account password is entered for SSH remote connection, no need to modify it separately
Change the administrator account password
Use shortcut keys ctrl + alt + T to open the terminal
Enter sudo passwd to modify the account password
Enter the new password twice

3. Connect to the network

Jetson nano version robot arm only supports wired network connection, the following describes the connection method of PC sharing the network through the network cable:

1. You need to prepare an Internet cable and a USB docking station with an Internet port

1. Connect one end of the network cable to the network port of the robot arm, and the other end to the network card of the expansion dock, and connect the USB port of the expansion dock to the PC.
When connecting to the PC for the first time, it will appear in the form of a driver, and a new driver needs to be installed to recognize the Ethernet of the robot arm. The following prompt will appear in the lower right corner of the desktop:

Clicking this prompt will open the following interface, click Run:

After the operation is completed, the PC can recognize the Ethernet of the robot arm.

1. Search for "Control Panel" on the PC search bar and open the Control Panel!

Select "View Network Status and Tasks"

Then click "Change Adapter Settings"

Select the network connected to the PC, right-click and click Properties

Then select Share, check Allow other network users to connect through this computer's Internet connection, and select the robot's Ethernet (some computers do not have this option, so just uncheck it), and click OK to exit.

1. After completing the above steps, the robotic arm system uses the shortcut keys ctrl+alt+t to open the terminal, enter ifconfig and press Enter, and the appearance of eth0 indicates that the network is successful:

4.VNC

VNC Function Introduction
It is a remote control software, generally used to remotely solve computer failures or software debugging.The premise of using VNC is that the robot arm has been connected to the network, and the PC needs to install VNC viewer software\
VNC port description
The robot arm and PC are connected to the same WiFi or the network is shared to the robot arm through a network cable. The IP address of the robot arm is the port
Connect VNC After connecting to the network through the network cable, use the shortcut keys ctrl+alt+t to open the terminal, enter ifconfig and press Enter to obtain the network IP address of the robot: Open the VNC viewer software on the PC, enter the IP address of the robot, and press Enter.

How to improve fluency
The fluency of remote connection depends on the fluency of the connected WiFi. It is recommended to connect to a stable WiFi for remote control

5.SSH

SSH function introduction
Simply put, SSH is a network protocol used for encrypted login between computers. If a user logs in to another remote computer from a local computer using the SSH protocol, we can assume that this login is safe, and even if it is intercepted in the middle, the password will not be leaked.
SSH port description
Default port is 22, no need to change
SSH first connection
Follow 2.3 VNC to confirm the IP address of the robot
Press win + R on the personal computer to open the run interface, and enter cmd in the input box
After entering, click OK to open the shell interface
Enter ssh er@IP address and press Enter (the IP address is mainly displayed on the robot arm, and the figure is only an example)
The following prompt appears, enter yes and press Enter
Enter the password Elephant, the password will not be displayed, just enter it normally. As shown in the figure above, the remote ssh connection has been successfully completed. As shown in the figure above, the remote SSH connection to the robot arm has been successfully completed
How to improve fluency
The fluency of remote connection depends on the fluency of the connected WiFi. It is recommended to connect to a stable WiFi for remote control

6. Language configuration

How to switch languages

Click Language Support on the desktop to enter the language switching interface, drag the language you want to change to the top, and restart the system

How to download languages

Click Language Support on the desktop to enter the language switching interface, select the language, click Download, and enter the password Elephant