Quantity   Component name
1 × VXQ-01 6 dof robotic arm 1.2m reach , 1200g maximum payload , USB, SPI, IR, FSK wireless
1 × raspberry 4B
1 × USB camera 200w pixels, UVC
1 × special made liquid container with solenoid valve a steel ball can stop water
8 × cup-pad 2.4G , Aruco marker wood