Gravity: IO Expansion Shield For Arduino V7.1 - DFRobot

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• Gravity: IO Expansion Shield for Arduino V7.1

Gravity: IO Expansion Shield for Arduino V7.1 $4.90 SKU: DFR0265 - + The product is an Arduino IO expansion shield offering simplified module connections, voltage selection, and dedicated servo power protection, compatible with various boards. Purchase this product and earn 49 reward points, which are tied to VIP membership program. Learn More > IntroductionFeaturesSpecificationDocumentsShipping List Resource FAQ Review

Introduction

If you are worried about the chaotic tangle of wires on a breadboard or intimidated by the trepidation of soldering holes on a perforated board, then you've come to the right place. Gravity, a set of electronic module interface specifications formulated by DFRobot, provides the solution you need. By utilizing the Arduino Gravity IO expansion board in conjunction with Gravity modules, you can effortlessly establish connections with a single cable. Whether analog, digital, or I2C modules, easily identified wiring colors liberate you from the tension that precedes every power-on moment. There is no need for wire strippers or soldering irons to experience the enchantment of Arduino. Furthermore, it is compatible with both the Arduino UNO R3 and Arduino UNO R4.

Moreover, this Arduino IO expansion shield has a range of features, such as wide voltage input, an Xbee module socket, a UART fast toggle switch, a 3.3V voltage selection jumper, and dedicated power protection for servos. These functionalities elevate the expandability of your Arduino to new heights.

Furthermore, using the Gravity IO expansion board does not imply the obligation to exclusively use Gravity modules. On the Gravity IO expansion board, it remains convenient to employ other non-Gravity modules by easily connecting them using DuPont wires.

Interface diagram for using the expansion board

If you are using development boards such as ESP32, micro:bit, Raspberry Pi Pico, etc., you can also take a look at the Gravity IO expansion boards designed by DFRobot specifically for these boards.

Arduino MEGA2560:

   - Gravity: IO Sensor Shield For Arduino Mega2560

micro:bit:

   - IO Extender for micro:bit

Raspberry Pi Pico: Gravity:

  - Expansion Board for Raspberry Pi Pico

FireBeetle 2 ESP32-E:

   - Gravity: IO Shield for FireBeetle 2

Features

• 3.3V/5V operating voltage select
• Switch for wireless communication & programme
• More Easily recognitive interfaces
• Colorful header for illustrating digital or analog pins
• Immersion gold surface

Specification

• Input Voltage
• 7-12V, PWR_IN
• 4.8-6V, SERVO_PWR, depending on your servo
• Compatible module voltage: 5V/3.3V
• Support interface: I2C, SPI, Xbee (Xbee pro), Bluetooth, APC220

Documents

• Wiki Doc        
• Schematic

Shipping List

• IO Expansion Shield for Arduino V7.1 x1

Resource

AllProjectsBlogTutorialCourseMedia

Projects Arduino UNO Project

RiverTrue Feb 27, 2023

FAQ

PWR_IN & SERVO_PWR

I inserted an xbee module on the expansion board, then switched the extension board to Prog, but it still failed to upload, how to solve it? Once the sensor is plugged into the expansion shield, the sensor would not work properly. Why there is no voltage in expansion shield VCC?

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Review

Tom.Kvichak Jul 13, 2022

By far the best expansion shield for any Arduino project using the Uno. The connections for external power is a must on most projects.

PUNNAPON.TANASNITIKUL Oct 24, 2025

Cheap and high-performance

abdelhamid.kechichi Oct 13, 2025

was very good condition

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