DFRobot
Gravity: 4-Digital LED Segment Display Module (Red)
A 4-digit 7-segment LED display module from DFRobot's Gravity series. This red LED display communicates over I2C, making it easy to wire up with just two dat...
A 4-digit 7-segment LED display module from DFRobot's Gravity series. This red LED display communicates over I2C, making it easy to wire up with just two data lines and compatible with a wide range of microcontrollers.
The module supports 8-level brightness adjustment, so you can fine-tune the display intensity to suit your project's environment — from dim indoor indicators to bright, readable counters.
Key Features
- 4-Digit 7-Segment Display – 8 segments × 4 digits with red LEDs
- I2C Interface – Simple two-wire communication, fewer pins needed
- 8-Level Brightness Control – Adjustable to suit different lighting conditions
- Gravity Connector – Plug-and-play with DFRobot Gravity-compatible boards
- Wide Temperature Range – Operates from -40°C to +85°C
Specifications
- Operating Voltage – 5V DC
- Operating Current – <55 mA
- Operating Temperature – -40°C to +85°C
- Storage Temperature – -55°C to +125°C
- Display Size – 50.5 × 19 mm (2.0 × 0.75″)
- PCB Size – 67 × 22 mm (2.64 × 0.87″)
- Interface – I2C
Ideal For
- Numeric readouts and counters
- Clocks and timers
- Sensor data displays
- Arduino and microcontroller projects
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.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- PCB
- A printed circuit board is a rigid board with copper tracks that connect electronic parts without loose wires. For this kit, the PCBs also form the airplane shape, so they are both the circuit base and part of the finished model.
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Related Tutorials
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