Introduction
This product includes DFRobot UNO R3, Gravity: IO Expansion Shield, and USB Cable A-B.

Simplified Connectivity
The Gravity: IO Sensor Expansion Board simplifies the process of connecting sensor modules to the UNO board by providing a standardized interface and connection method. This reduces the difficulty and complexity that users may encounter during the connection process.

Enhanced Expandability
The limited number of interfaces on the UNO board restricts the ability to connect multiple sensor modules at the same time.Gravity: IO Sensor Expansion Boards provide multiple digital and analog interfaces, as well as I2C and UART interfaces, providing users with greater expandability to connect more sensor modules and other external devices to meet the requirements of more complex projects.

Enhanced Compatibility
Some sensor modules may not be directly compatible with the UNO board, requiring adaptation and conversion.Gravity: IO Sensor Expansion Boards are compatible with the Arduino UNO development boards, allowing users to directly connect a variety of sensor modules without the need for additional adaptations or conversions. This improves compatibility and convenience, reducing the hassle and cost for users.
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
Shipping List
DFRobot UNO R3 V3.0 x1
Gravity: IO Expansion Shield for Arduino V7.1 x1
USB Cable A-B for Arduino Uno/Mega x1