# **Project 13 Rotation of Robot Arm and Control Pins**

## Part 1：Rotation of Robot Arm and Servo Angle Setting

| Servo                              | 0°                                                          | 180°                                                       |
| ---------------------------------- | ----------------------------------------------------------- | ---------------------------------------------------------- |
| **Servo 1（Right Servo）**         | The small pendulum connected to servo 1 swings **backward** | The small pendulum connected to servo 1 swings **forward** |
| **Servo 2（Base Rotation Servo）** | Turn to the **far right**                                   | Turn to the **far left**                                   |
| **Servo 3（Claw Servo）**          | The claw will **open**                                      | The claw will **close**                                    |
| **Servo 4（Left Servo）**          | The big pendulum swings **forward**                         | The big pendulum swings **backward**                       |

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## Part 2：Control Pins

### Servo 1（Right Servo）

**Micro:bit 16-channel Servo Shield**

| Wire Color | Pin  |
| ---------- | ---- |
| Brown      | G    |
| Red        | V    |
| Orange     | S(4) |

------

### Servo 2（Base Rotation Servo）

Micro:bit 16-channel Servo Shield

| Wire Color | Pin  |
| ---------- | ---- |
| Brown      | G    |
| Red        | V    |
| Orange     | S(5) |

------

### Servo 3（Claw Servo）

**Micro:bit 16-channel Servo Shield**

| Wire Color | Pin  |
| ---------- | ---- |
| Brown      | G    |
| Red        | V    |
| Orange     | S(6) |

------

### Servo 4（Left Servo）

**Micro:bit 16-channel Servo Shield**

| Wire Color | Pin  |
| ---------- | ---- |
| Brown      | G    |
| Red        | V    |
| Orange     | S(7) |

------

## Left Joystick Module → Servo Shield Pins

| Joystick Pin | Servo Shield Pin |
| ------------ | ---------------- |
| Y            | P0               |
| X            | P1               |
| V            | +3V              |
| G            | GND              |

------

## Right Joystick Module → Servo Shield Pins

| Joystick Pin | Servo Shield Pin |
| ------------ | ---------------- |
| Y            | P2               |
| B            | P13              |
| V            | P14              |
| G            | P15              |