Gravity: I/O Expansion Shield (DFR0375) Reference - Features & Documentation

The article offers supplementary information on digital and analog signals, emphasizing the advantages of DFRobot's I/O expansion shields, the ease of recognizing connections with the Gravity Interface, and the flexibility of 3.3V/5V power switching options.

Other Supplementary Information

Digital & Analog

DFR0375整个图形.png

"D": represents digital signal
"A": represents analog signal

One of the biggest benefits of the I/O expansion shield is increased power and GND pins, allowing you to connect more sensors.

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Green: digital signal
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Blue: analog signal
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Red: VCC
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Black: GND
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This is DFRobot's Gravity Interface. Digital and analog connections are easy to recognize and support most of DFRobot's I/O expansion shields and modules. Search "Gravity" in the DFRobot store to find compatible modules.

3.3V / 5V Power Switching

The shield is compatible with 3.3V and 5V logic. Select desired voltage by shorting either the 3.3 or 5v pins as pictured.

DFR0375电源切换.png