On your video for setting up the electronics for the John Deere you plug the Arduino into a electronic component on the cheese board, what is the name of this component,
I guess you are referring to this video? At 18:55 the component to the left of the Arduino is the XBee, it is in a socket which converts the 1 mm pin pitch of the XBee to the 2.54 mm pin pitch of the bread board. On the right is the TB6612FNG motor driver. Does that answer your question?
No when I first started this hobby I used XBee’s because they are great and easy to use. The problem is I was looking at how much it was going to cost me to put an XBee in every model so I switched to the NRF24L01 radio transceivers instead. So the John Deere 9560R now uses NRF24L01 radio modules which is why it’s not in the parts list. However some people prefer to use them still which is fine they are really good but I don’t have the code for them as I haven’t used them in a tractor in a long time sp if you wanted to use them you’d have to modify my code slightly.