Datasheet - Raspberry Pi Bus Servo Expansion Board Rasprobo2
1. Features
- Directly compatible with Raspberry Pi, with no additional wiring required
- Integrated UART serial bus servo interface
- Integrated full-duplex/half-duplex servo signal conversion
- Integrated USB/TTL conversion with support for UART servo configuration software
- Integrated air pump and solenoid valve control circuitry, convenient for robotic arm design
- Integrated inertial navigation module (IMU)
- Supports robot self-balancing and advanced attitude algorithms
- Integrated power management, capable of powering the Raspberry Pi directly
- Integrated camera fill light control (GPIO4)
- Integrated three interface types: I2C, digital, and button
- Supports low-voltage alarm
2. Specifications
| Item | Value |
|---|---|
| Power Input | 6.0-8.4V |
| Power Switch | Power ON/OFF |
| I2C Interface | Raspberry Pi breakout interface, compatible with the Grove interface definition |
| 5.0V Expansion Port | |
| 3.3V Expansion Port | |
| Fill Light Interface | Integrated fill light control circuitry for camera illumination |
| Servo Interface | CH1-CH6, for connecting UART serial bus servo |
| Function Button | Extended button with customizable functions |
| Inertial Navigation Module | IMU (MPU6050), supports robot self-balancing and advanced attitude algorithms |
| Micro USB | Connects to a PC for configuration and control via PC configuration software |
| SW Interface | Connects to a solenoid valve |
| MT Interface | Connects to an air pump motor |
| Buzzer | Low-voltage alarm |
| Power Indicator | Steady on after power-up |
| Status Indicator | Steady on when voltage is normal; blinking when voltage is low |
3. Interface Overview
Pin Assignment
4. Reference Wiring Diagram
