Adafruit 0.56" 4-Digit 7-Segment Display w/I2C Backpack - White - STEMMA QT / qwiic

The Adafruit LED Matrix Backpack is a simple and efficient solution for adding a small, bright display to your project. Whether you're using an 8x8 LED matrix or a 4-digit 7-segment display, these backpacks eliminate the need for complex wiring and lots of pins. With an integrated driver chip (HT16K33), the display multiplexes automatically and uses constant-current drivers for ultra-bright, consistent color. It also supports easy 1/16-step dimming, all controlled via a simple I2C interface.

Key Features:

• Built-In Driver Chip: The HT16K33 chip handles display multiplexing and uses constant-current drivers for bright and consistent output.
• I2C Interface: Control the display with a simple I2C connection, and connect up to four mini 8x8 matrices or eight 7-segment displays (or any combination) on a single I2C bus.
• STEMMA QT Connectors: Two connectors are provided for solderless connections, compatible with SparkFun Qwiic I2C cables, making it easy to connect to a variety of accessories and sensors.
• Easy Setup: The product kit comes with a fully tested and assembled LED backpack, a 4-digit 0.56" white seven-segment display, and a 4-pin header. Soldering the matrix onto the backpack takes only about 5 minutes.
• Tutorial and Library: Adafruit provides a detailed tutorial and a user-friendly library to get you up and running quickly. Display images on the matrix or numbers on the 7-segment display in less than 30 minutes.

If you've been hesitant to use matrix displays due to complexity, this LED Matrix Backpack is the perfect solution to simplify the process and add a colorful, bright display to your project.

Technical Details:

• I2C Address: 7-bit address range from 0x70 to 0x77, selectable with jumpers
• Backpack Dimensions: 50.0mm x 26.7mm x 6.0mm (2.0" x 1.1" x 0.2")
• Backpack Weight: 5.6g
• 7-Segment Display Dimensions: 19mm x 50mm x 14mm (0.75" x 2" x 0.56")
• 7-Segment Display Weight: 8.4g
• Documentation: Datasheets, schematic, EagleCAD PCB files, and Fritzing available in the product tutorial
• Revision History:
  • Jan 19, 2022: PCB updated to include two vertical-mount STEMMA QT connectors for plug-and-play compatibility with STEMMA QT cables and devices.