Mielr said:

I think we see the control panel during both of Luke's trips to Dagobah in ESB and ROTJ, but I don't remember if it's the same.

Both movies use the same shot of the R2 control panel. In fact, the one in my examples is the one from RotJ because the color balance was 1000x better. I also checked the front end of the cockpit between the three movies to see if you could see the R2 panel at any other time (you can't). The cockpit seems identical between all three movies, so that's good.