Gravity: I/O Expansion Board

SKU: DFR0577

The Gravity I/O Expansion Board provides a range of versatile ports and power options, enabling users to connect digital, analog, I2C, and UART modules efficiently. With external power supply support and adjustable voltage settings, it caters to various electronic project needs, allowing for the integration of high current components such as motors and servos. The board's compact size and Gravity series standard connectors make it an ideal choice for enhancing project functionality. The expansion board's comprehensive pinout includes digital ports, analog ports, I2C ports, and UART ports, each designed to offer precise signal levels and power supply voltages. Whether you're working on complex projects or simple setups, the Gravity I/O Expansion Board is engineered to facilitate seamless module connections and robust project performance.

Overhead shot of Pyboard expansion shield with I/O connectors and components for MicroPython.-DFRobot product sku:DFR0577 image.
  • Docs
  • Tech Specs
  • Specification

    Parameter Value
    External Power Supply Voltage 5~12V
    External Power Input Current <1A
    Connector Gravity series standard connector
    Ports 12 sets of digital ports, 8 sets of analog ports, 1 set of serial port, 2 sets of I2C ports
    Interface Signal Level High Level 3.3V, Low Level 0V
    Analog Input Range 0~3.3V
    Onboard LDO Output Voltage 3.3V
    Onboard LDO Output Current <500mA
    Board Size 33mm*42.6mm

    Pinout

    Num Label Description
    1 Digital Port connect to Gravity series digital modules
    power supply voltage of the port:3.3V
    Pin:Y3~Y10
    2 External Power Port connect to the external power supply
    input voltage:5~12V
    3 Rest Button reset the pyboard
    4 User Button USR button of the pyboard
    5 Power Switch choose the power supply voltage of X1~X4 ports, 3.3V or VIN
    6 Analog Port connect to Gravity series analog modules
    power supply voltage of the port:3.3V
    Pin:X5~X8、X11、X12、Y11、Y12
    7 I2C Port connect to Gravity series I2C modules
    power supply voltage of the port:3.3V
    Pin:X9、X10(I2C 1)
    8 UART Port connect to Gravity series UART modules
    power supply voltage of the port:3.3V
    Pin:Y1、Y2(UART 6)
    9 Digital Port
    (High Current)
    drive high current components such as motors and servos
    power supply voltage of the port: 3.3V or VIN (can be selected by the power switch)
    Pin:X1~X4

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