Depending on the product version, Rainbow Robotics collaborative robots are classified as N, E, and U versions.
· 1st generation: N version
· 2nd generation: E version
· 3rd generation: U version
You can also distinguish the versions by appearance.
· N version: Features a translucent plastic cover. (3 cover bolts (cross-shaped))
· E version: Features an aluminum joint cover. (4 cover bolts (cross-shaped))
· U version: Features an aluminum joint cover, and the joint band is thicker. (There are 4 cover bolts (star wrenches))

No. The N, E, and U versions are not compatible with each other.
Each version differs in the pin mapping and hardware configuration of the main cable between the robot control box, so,
You cannot use different versions of the robot together with the control box. For example,
· N-Version Control Box ↔ N-Version Robot
· E-Version Control Box ↔ E-Version Robot
· U-Version Control Box ↔ U-Version Robot
You must use the same version of the robot and control box together, as in [the example].
Also, in the case of high-load models (such as RB20, RB30, etc.), considering the robot's power consumption
You must use a control box equipped with an SMPS of the appropriate capacity for the model. If you do not use the recommended control box for each model, normal operation may be difficult.

No. iOS (iPhone and iPad) is not currently supported.
The Rainbow Robotics collaborative robot can be used on Android-based smartphones and tablets, as well as in Windows and Linux environments.