While there is no widely known 88-key keyboard or digital piano currently marketed as the "Proteus Portable 88," the name likely refers to one of two things: a modern adaptation of the classic E-mu Proteus

Rapid Prototyping: Quickly testing sensor-to-motor feedback loops without needing a bulky laptop tethered to the robot.

Picking Components: Press the 'P' key on your keyboard to open the "Pick Devices" window. Type the name of the component (e.g., "LED", "RES", "74LS04") and double-click to add it to your selector list.

10. Where to find documentation and support