Description
This product is a convenient and easy way to add a small LED display to your project without all the hassle of complicated wiring. Ideal for projects requiring a display, you can choose between a mini 8×8 matrix or a 4-digit 0.56″ 7-segment display. These displays use a driver chip that handles all the multiplexing and color consistency, so you don’t need to worry about setting up numerous pins or worrying about the size.
The matrices use constant-current drivers for bright, consistent color, 1/16-step display dimming, and are controlled via a simple I2C interface. The backpack includes address-selection jumpers, allowing you to connect up to four 8×8 matrices or eight 7-segment displays, or a combination of both, on a single I2C bus.
Kit Includes:
- Fully tested and assembled LED backpack
- Ultra-bright 4-digit 0.56″ red seven-segment display
- 4-pin header
- Two STEMMA QT connectors for easy solderless I2C connections (compatible with SparkFun Qwiic I2C connectors)
Soldering is required to attach the matrix to the backpack, but it only takes about 5 minutes. With detailed instructions and a custom library, you’ll be up and running quickly—displaying images or numbers with ease. This kit is perfect for anyone looking to add a matrix display without dealing with complex wiring!
Technical Details:
- I2C 7-bit address range: 0x70-0x77, 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.
- Access to datasheets, schematic, EagleCAD PCB files, and Fritzing in the product tutorial.
Revision History:
- Jan 19, 2022: PCB revised to include two vertical-mount STEMMA QT connectors, enabling plug-and-play compatibility with STEMMA QT cables and devices.
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