Gravity: IO Expansion Shield for Arduino V7.1
📦 Location of the warehouse: China
Free shipping for you
Free Shipping from 30€ in Germany, 50€ in the EU!
Trustpilot rating: 4/5
Thank you for your support - rate us on Trustpilot!
Gravity: IO Expansion Shield for Arduino V7.1
Tired of messy wires or breadboard chaos when prototyping with Arduino? The Gravity IO Expansion Shield for Arduino V7.1 provides a clean, modular, and beginner-friendly solution. Designed by DFRobot, this shield supports plug-and-play connectivity with Gravity modules, using clearly labeled ports and color-coded headers for analog, digital, and I2C interfaces.
Fully compatible with Arduino UNO R3 and UNO R4, this expansion shield allows seamless integration of wireless modules (like Xbee, Bluetooth, RS485), servo power management, and even SD card communication. You can also use non-Gravity modules with standard DuPont jumper wires.
Key Features
-
3.3V / 5V voltage select for wide compatibility
-
UART toggle switch to enable programming and communication modes
-
Clearly labeled, color-coded ports for fast and accurate wiring
-
Compatible with Xbee, RS485, URM04, APC220, and more
-
Gold-plated PCB surface for long-term reliability
-
Enhances expansion capability of your Arduino projects
Specifications
| Parameter | Details |
|---|---|
| Input Voltage | 7–12V via PWR_IN pin |
| Servo Power Input | 4.8–6V via SERVO_PWR |
| Compatible Module Voltage | 3.3V / 5V (selectable) |
| Supported Interfaces | I2C, SPI, Xbee, Bluetooth, APC220 |
Board Overview
-
SD card slot
-
I2C port
-
UART toggle switch
-
Analog and digital interface rows
-
Bluetooth/Xbee slot
-
External power terminal
-
RS485 interface and jumper switch
Shipping List
-
1 × IO Expansion Shield for Arduino V7.1
Project Applications
This board is used in many real-world projects, including:
1.2M MechaGodzilla Armor Suit (with EVA & Gears) – Build wearable robotic suits with servo control
2.Spectrophotometer with AS7341 Sensor – Conduct experiments measuring substance concentration
3.Smart Rock-Paper-Scissors Robot – Build a reactive robot using gesture recognition
4.Automatic Water Quality Monitor (KnowFlow) – Monitor pH, EC, ORP, and more
5.Automatic Water-Changing System – Combine sensors and pumps for environmental automation
Compatible with Other Development Boards
If you're using ESP32, micro:bit, or Raspberry Pi Pico, DFRobot offers tailored IO expansion boards:
-
Arduino Mega 2560: Gravity IO Sensor Shield
-
micro:bit: IO Extender for micro:bit
-
Raspberry Pi Pico: Gravity IO Expansion Board
-
FireBeetle 2 ESP32-E: IO Shield for FireBeetle 2
Reference
Effective Date: March 27, 2025
At OpenELAB, we are committed to providing accurate product descriptions and delivering high-quality products. If you experience any issues with your purchase, please notify us within 60 days of the shipment date.
1. Warranty Disclaimer
Unless explicitly stated in a specific agreement or purchase order, OpenELAB makes no warranties—express or implied—regarding the fitness, suitability, or merchantability of any product for a particular purpose or special use.
2. Warranty Policy
Warranty Period
The standard warranty period for products sold by OpenELAB is 12 months from the date of delivery.
Under this warranty, OpenELAB will make a reasonable effort to repair or replace products free of charge if defects are due to issues with raw materials, design, or manufacturing.
If the defect qualifies under this policy but falls outside the covered scope, reasonable charges may apply for repair or replacement.
After the warranty period, support may still be available at a reasonable fee.
Warranty Exclusions
The warranty does not apply in the following cases:
- The product is beyond the 12-month warranty period.
- Damage due to misuse, improper maintenance or storage, or failure to follow the user guide or manual.
- Issues caused by Force Majeure events (e.g., natural disasters, war, legal changes, etc.).
- Unauthorized repair attempts by the customer.
- The product is not defective but has been opened and is non-returnable by policy.
3. Returns & Refunds
If you're not satisfied with your purchase, you may be eligible for a return or exchange:
- Return for Refund: Within 15 days of receipt (unopened).
- Return for Replacement: Within 30 days of receipt (damaged or defective).
- Exchange Window: Up to 30 days from receipt.
Please email us at info@openelab.io for a return authorization before sending anything back.
Return Conditions
- Items must be in original, clean, and mint condition with packaging intact.
- Returns of damaged, used, scratched, modified, or programmed items will not be accepted.
- Include the receipt, a brief note with your name, order number, and reason for return.
Shipping & Fees
- Customers are responsible for return shipping to our warehouses in Europe, the US, or China.
- Refunds may be subject to additional shipping fees unless the return is due to our error.
- A flat €8 shipping fee will be deducted for returned items that originally qualified for free shipping.
Payment Platform Fees
For refunds processed through third-party platforms such as PayPal or Braintree, a standard 3.5% service fee may be deducted to cover payment processing costs.
