DFRobot
Gravity: SCI DAQ Module with Screen (I2C)
The Gravity SCI DAQ Module is a multi-functional data acquisition module with a built-in 1.3-inch OLED screen for real-time sensor readings. It supports over...
The Gravity SCI DAQ Module is a multi-functional data acquisition module with a built-in 1.3-inch OLED screen for real-time sensor readings. It supports over 20 common sensor types including temperature, humidity, and barometric pressure — with automatic sensor recognition and a standardised I2C data output, so you can read any supported sensor using the same code.
Built-in 16MB storage with an RTC clock lets you log timestamped data for later analysis. The module standardises output across all supported sensors, significantly reducing the complexity of sensor interfacing for Arduino, UNIHIKER, and other I2C-compatible controllers.
Key Features
- Display – 1.3-inch OLED screen for real-time data viewing
- Sensor Support – Auto-recognises 20+ Gravity sensor types
- I2C Output – Standardised data format (addresses 0x21–0x23)
- Data Storage – 16MB on-board U-disk storage
- RTC Clock – CR1220 battery-backed real-time clock for timestamped data
- Operating Voltage – 3.3–5.5V DC
- Operating Current – 40mA
- Input Interfaces – 1× Digital/Analog, 2× I2C/UART
- Output Interface – 1× I2C
- Dimensions – 62 × 52 × 13mm
Ideal For
- STEAM education and science experiments
- Data logging and environmental monitoring
- Simplifying multi-sensor projects
- Rapid prototyping without custom sensor code
Package Contents
- 1× Gravity SCI DAQ Module
- 2× Double-headed PH2.0-4P Cable (20cm)
- 1× Double-headed PH2.0-3P Cable (20cm)
- 1× Gravity 4P Sensor Cable
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- Gravity
- Gravity is DFRobot’s plug-in connector system for sensors, motors and modules, using standard cables to reduce loose jumper wiring. It matters because Gravity-compatible parts can connect directly to these ports, while non-Gravity parts may need adapters or manual wiring.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- OLED
- OLED stands for organic light-emitting diode, a display type where each pixel produces its own light. It matters because OLED screens are thin, high-contrast and easy to read for small status displays, but they can be more sensitive to image burn-in than some other display types.
- RTC
- A Real-Time Clock keeps track of time even when the main processor is asleep or powered down, usually with a small backup battery. It matters for data logging and tracking projects that need accurate timestamps.
- UART
- UART is a simple serial connection that sends data over separate transmit and receive wires, often labelled TX and RX. It matters because this module is designed to replace a wired UART cable with a wireless link while keeping the same serial data format.
- UNIHIKER
- UNIHIKER is a small programmable computer board used in education and maker projects, often connected to external sensors and modules. Compatibility matters because the cable must match the board’s connector type and pin layout.
Find this product in
Brands
Sensors & Input
Supplier page — dfrobot.com
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Related Tutorials
Free guides on learn.littlebird.com.au
