A webcam watches your hands. Python (using mediapipe) tracks the landmarks of both hands in real-time, translates them into angles for the 4 servomotors of the arm, and sends them via serial port to an Arduino which applies them. 

Wiring (-> motorshield pins)

| Servo | Funzione | Pin |

| 1 | Base | A1 |

| 2 | Shoulder | A0 |

| 3 | Elbow | 6 |

| 4 | Gripper | 9 |

SOFTWARE

Control.py 

Left hand: Thumb-index pinch → BASE rotation (pin A1)Right hand: Hand height in the frame → arm extension: moves SHOULDER (pin A0) and ELBOW (pin 6) together in a coordinated way (hand high = arm extended forward, hand low = arm retracted) Thumb-index pinch → GRIPPER control (pin 9) 

Safety 

If a hand leaves the frame, its axis remains locked at the last commanded value (no sudden jumps) Spacebar → full pause of all servo motors 'q' → exit 

Privacy 

The face is detected using OpenCV's Haar Cascade and automatically blurred on every frame 'f' → toggle face blur