Adafruit
Adafruit 0.56in 4-Digit 7-Segment Display Backpack - Green
· MPN: ADA5603
Add a bright numeric display to your project without giving up a pile of microcontroller pins. This assembled Adafruit LED backpack pairs an ultra-bright gre...
Add a bright numeric display to your project without giving up a pile of microcontroller pins. This assembled Adafruit LED backpack pairs an ultra-bright green 4-digit, 0.56 inch seven-segment display with a driver board that handles the multiplexing for you.
The onboard driver chip includes its own clock, constant-current LED drivers and 1/16 step dimming, all controlled over a simple I2C interface. Address-selection jumpers let you put multiple displays on the same I2C bus, making it practical to build larger readouts or combine this display with other I2C parts.
This revision keeps the same size and pinout as the earlier board, and adds two STEMMA QT connectors on either side. These are compatible with SparkFun Qwiic I2C connectors, so you can make solderless connections to a development board or chain it with other compatible sensors and accessories.
The kit includes a fully tested and assembled LED backpack with a pre-soldered ultra-bright 4-digit 0.56 inch tall green seven-segment display, plus a 4-pin header. Adafruit also provides a detailed tutorial and library to help you get numbers displaying quickly.
Features:
- Assembled display: Fully tested LED backpack with pre-soldered ultra-bright green 4-digit 0.56 inch seven-segment display.
- Included header: 4-pin header included.
- Driver chip: Handles display multiplexing for you.
- Built-in clock: Multiplexes the display using the onboard clock.
- Constant-current drivers: Provides ultra-bright, consistent colour.
- Dimming: 1/16 step display dimming.
- Interface: Simple I2C control.
- Address jumpers: Connect up to eight 7-segment displays on a single I2C bus.
- STEMMA QT: Two STEMMA QT connectors for solderless I2C connections.
- Qwiic compatible: STEMMA QT connectors are compatible with SparkFun Qwiic I2C connectors.
- Chaining: Can be chained with a wide range of other sensors and accessories using a compatible cable.
- Software support: Adafruit library and tutorial available for wiring, soldering and control.
Specifications:
- I2C 7-bit address: between 0x70-0x77, selectable with jumpers
- Backpack Dimensions: 50.0mm x 26.7mm x 6.0mm / 2.0" x 1.1" x 0.2"
- 7-Segment Display Dimensions: 19mm x 50mm x 14mm / 0.75" x 2" x 0.56"
- Overall Weight: 14.5g
- Design files and documentation: Datasheets, schematic, EagleCAD PCB files, and Fritzing available in the product tutorial
A handy display module for clocks, counters, timers, sensor readouts and any project that needs a compact numeric display over I2C.
Jargon buster
Plain-language definitions for the technical terms used above.
- 5G
- A mobile network standard used for high-speed wireless data links. If a project uses a 5G gateway, its power system must be able to supply enough current reliably for outdoor or remote operation.
- Address jumpers
- Address jumpers are small solder pads or links used to change a device’s bus address. They matter when you want to connect multiple identical displays to the same controller without their addresses conflicting.
- 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.
- Qwiic
- Qwiic is a plug-in connector system for I2C devices that uses small 4-pin cables, so you can connect compatible sensors without soldering. It matters because your controller or adapter also needs Qwiic, or you will need a cable or breakout to wire it up.
- Seven-segment display
- A common numeric display made from seven LED bars arranged to form digits. It is good for numbers but limited for letters, so comparing it with a fourteen-segment display helps you judge what kind of text the product can show.
- STEMMA
- A plug-and-cable connection system used on some maker electronics boards to make wiring simpler. If a product uses STEMMA, you need the matching cable or connector type to plug it in without soldering.
- STEMMA QT
- A small plug-in connector system for I2C boards that lets you connect compatible sensors and controllers without soldering. It matters because it can make wiring faster and less error-prone, especially when adding several small modules to a project.
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