Gravity IO Expansion Shield for Arduino V7.1

Input-output expansion boards are highly popular products in the world of hobby electronics because they offer much faster and more reliable solutions compared to tedious methods like soldering, bridging, or splicing cables.
Thanks to the Gravity I/O Expansion Shield for Arduino®, you can focus directly on the software and algorithms of your project without needing soldering tools, wire strippers, or crimping pliers.
Thus, you can reduce your prototyping costs and allocate your budget to different components.

Developed by DFRobot, this expansion shield features the 3-pin (Signal, Voltage, Ground) connection system, which has the most common usage standards in the electronics world.
In this way, it shows full compatibility with your sensors and modules, allowing you to get clutter-free input-output connections.

You can comfortably use this board in professional experimental environments, as it features screw terminal blocks on the power input section to work with laboratory-type external power supplies.
A special socket area designed for XBee modules, a popular wireless communication device, is also built into the board.

Thanks to the voltage selection jumpers added in the new version, the system logic level can be set to 3.3V.
This flexibility allows the board to be used safely in a very wide range of development boards, from Raspberry Pi models to the Arduino® Due.

Additionally, since the external servo power supply terminals on the board are designed with protective diodes, you can safely work with many different types of servo motors that draw high current.

Thanks to the built-in physical switch, if you need to program an external device via the serial port (UART), you can easily switch between modes by turning this switch on and off without the hassle of plugging and unplugging cables.

Gravity I/O Expansion Shield for Arduino® General Features:

• Fully compatible with Arduino® Due and other development boards in the standard form factor.
• Offers selectable 3.3V / 5V logic operating voltage.
• Allows quick switching between wireless connection or programming modes with the switch on the board.
• Provides a clear interface without the need for complex circuit diagrams thanks to its advanced design.
• Features color-coded headers so you can easily distinguish digital and analog pin groups.

Gravity I/O Expansion Shield for Arduino® Technical Specifications:

• Input Voltage (Recommended): Between 7V - 12V
• Servo Supply Voltage: Between 4.8V - 6V (Must be supplied externally according to the technical limits of the servo used)
• Built-in Voltage Regulation: 5V / 3.3V
• Supported Popular Interfaces and Modules: I2C, SPI, XBee (XBee Pro), Bluetooth, APC220

Products That Can Be Used Together:

• UNO R3 Development Board Compatible with Arduino
• Other Shield Types Compatible with Arduino®
• HC-05 Bluetooth Module
• XBee Communication Modules
• Sensor Types Compatible with Arduino®

Documents & Useful Links:

• Original DFRobot Product Reference Page (Wiki)
• Module Circuit Schematic (PDF)
• Sample Project Work - 1
• Sample Project Work - 2