To connect a 6-Axis Robotic Arm to VEXcode EXP, you must first power on your 6-Axis Arm, and directly connect the 6-Axis Arm to your computer.
Open codeexp.vex.com and open a new Arm Blocks or Text project.
The 6-Axis Arm icon in the top right of the screen will be white, showing that no 6-Axis Arm is currently connected. Select this icon.
When selected, a new window will open. Select Connect Arm to start connecting your 6-Axis Arm to VEXcode EXP.
Select Continue.
Select the port that has the smallest number. In this screenshot, 1101 is smaller than 1103, so it is selected.
Once the correct port is highlighted, select Connect to finish connecting the 6-Axis Arm.
Now on the webpage, the 6-Axis Arm icon will turn green, this indicates that the 6-Axis Arm is successfully connected and its firmware is up to date.
If the 6-Axis Arm icon is orange, that means the firmware is out of date. Read this article to learn how to update your 6-Axis Robotic Arm's firmware.