Differences with Real Robot
The following data is available on a real Nao, but not available in the simulated robot:
Sonar Sensors
Touch Sensors
Battery Status
The simulation server does not provide camera images. Instead, simulated vision data including balls, robots, and field lines are published. The simulated vision in the simulator does not report field features (Corners, Circle, T-Junctions, X-Junctions, etc.)