# Assembled Adafruit 0.56" 4-Digit 7-Segment Display - w/ I2C Backpack QT - Green

**Type:** Product page · **SKU:** ADA5603 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/assembled-adafruit-056-4-digit-7-segment-display-w-i2c-backpack-qt-green.html ([markdown](https://core-electronics.com.au/assembled-adafruit-056-4-digit-7-segment-display-w-i2c-backpack-qt-green.html.md))

What's better than a single LED? Lots of LEDs! A fun way to make a small display is to use an 8x8 matrix or a 4-digit 7-segment display. Matrices like...

## Pricing

- **Price:** $25.30 (inc GST) — $23.00 AUD, exc GST
- **Quantity discounts:** 10+ $22.31 (exc GST) · 50+ $21.85 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 1 today, and up to 60 more in 8–12 days.

## Description

What's better than a single LED? Lots of LEDs! A fun way to make a small display is to use an [8x8 matrix](https://core-electronics.com.au/#) or a [4-digit 7-segment display](https://core-electronics.com.au/#). Matrices like these are 'multiplexed' - so to control all the seven-segment LEDs you need 14 pins. That's a lot of pins, and there are [driver chips like the MAX7219](https://core-electronics.com.au/max7219cng-led-matrix-digit-display-driver-max7219.html) that can control a matrix for you but there's a lot of wiring to set up and they take up a ton of space. Here at Adafruit Adafruit feel your pain! After all, wouldn't it be awesome if you could control a matrix without tons of wiring? That's where these adorable LED matrix backpacks come in. Adafruit have them in two flavors - [a mini 8x8](https://core-electronics.com.au/#) and a [4-digit 0.56" 7-segment](https://core-electronics.com.au/#). They work perfectly with the matrices Adafruit stock in the Adafruit shop and make adding a bright little display trivial.The matrices use a driver chip that does all the heavy lifting for you: They have a built in clock so they multiplex the display. They use constant-current drivers for ultra-bright, consistent color (**the images above are photographed at the dimmest setting to avoid overloading Adafruit's camera!**), 1/16 step display dimming, all via a simple I2C interface. The backpacks come with address-selection jumpers so you can connect up to four mini 8x8's or eight 7-segments (or a combination, such as four mini 8x8's and four 7-segments, etc) on a single I2C bus.The product kit comes with:

- A fully tested and assembled LED backpack with a pre-soldered [ultra-bright 4-digit 0.56" tall green seven-segment display](https://core-electronics.com.au/green-7-segment-clock-display-0-56-digit-height.html)
- 4-pin header

To get you going fast, Adafruit have revised this popular board to be the same size and pinout as before but now with two [STEMMA QT connectors](https://learn.adafruit.com/introducing-adafruit-stemma-qt/what-is-stemma-qt) on either side that are compatible with the [SparkFun Qwiic](https://core-electronics.com.au/catalogsearch/result/?q=qwiic) I2C connectors. This allows you to make solderless connections between your development board and the HT16K33 or to chain it with a wide range of other sensors and accessories using a [**compatible cable**](https://core-electronics.com.au/search?q=stemma%20qt%20cable).

Of course, in classic Adafruit fashion, We also have a detailed tutorial showing you how to solder, wire, and control the display. They even wrote [a very nice library for the backpacks so you can get running in under half an hour, displaying images on the matrix or numbers on the 7-segment](https://github.com/adafruit/Adafruit-LED-Backpack-Library). If you've been eyeing matrix displays but hesitated because of the complexity, this is the solution you've been looking for!

##  Technical Details 

This board/chip uses 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

[Datasheets, schematic, EagleCAD PCB files, and Fritzing available in the product tutorial](https://learn.adafruit.com/adafruit-led-backpack/downloads)

 
 ![RoHS 2 2011 65 EU Compliant](https://core-electronics.com.au/attachments/uploads/RoHS2_2011_EU.png)![RoHS 2 2015 863 EU Compliant](https://core-electronics.com.au/attachments/uploads/RoHS2_2015_EU.png)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/A/D/ADA5603-1.jpg)