Gravity: Arduino Shield for Raspberry Pi B+/2B/3B/3B+/4B

Combine the computing power of Raspberry Pi with the rapid I/O capabilities of Arduino using this expansion shield. Featuring an onboard ATmega32u4 microcontroller (Arduino Leonardo compatible), it lets your Pi handle complex tasks like image processing and wireless communication while Arduino manages real-time motor control and sensor responses.

The shield provides standard Arduino pin mapping, making it compatible with existing Arduino shields and the extensive Gravity sensor library. Ideal for robotics projects requiring both processing power and fast hardware response times.

Key Features

• ATmega32u4 Microcontroller – Arduino Leonardo compatible chip onboard
• 20 Digital I/O Ports – Full Arduino-compatible digital pins
• 6 Analog I/O Ports – Read analog sensors directly
• 16 Raspberry Pi GPIO – Access Pi GPIO through the shield
• Multiple Interfaces – I2C, ID_I2C, SPI, and TTL UART
• Arduino Shield Compatible – Stack standard Arduino shields on top
• 5V System Voltage – Compatible with 5V Arduino accessories
• Compact Size – 86mm × 61mm × 26mm

Ideal For

• Mobile robotics requiring fast motor control
• Projects combining Pi processing with Arduino I/O
• Sensor-intensive applications needing real-time response
• Makers wanting to leverage both ecosystems

Compatibility

• Raspberry Pi B+, 2B, 3B, 3B+, 4B

Package Contents

• 1× Arduino Expansion Shield
• 1× Micro USB cable (20cm)
• 1× CR1220 button cell battery

Resources

• DFRobot Product Page
• DFRobot Wiki