I understand about wanting to avoid the schools WiFi, and you will find many examples of robot projects on line and through this forum using other methods of wireless communication.
I want to mount an Arduino on the robot during design and development to read temperature, voltage, current, etc. on my PC.
Are the sensors 5v or 3.3v devices? This may help with the choice of an Arduino?
I think that the best way for you to get started is with wired Serial communication between the PC and the robot.
What program do you intend to run on the PC? Something more than a simple terminal?
What Arduino's do you have available to you? The Wifi Rev2 could work as a wired Arduino using it's Serial1 port. Any other Arduino like a Nano Every, or Mega with a second hardware serial port could work as well. A Uno using software serial could also work.
Once you have all the robot sensor issues, and the pc program or terminal application issues worked out and the data transfer as you want it, then you can convert to wireless.
Do you intend to control the robot from the pc, or just monitor some sensors? Are you thinking you might want to have a camera on the robot?