Adafruit
Adafruit 4-Digit 7-Segment LED Matrix Display FeatherWing - FeatherWing Only - no matrices!
The Adafruit 4-Digit 7-Segment LED Matrix Display FeatherWing makes it easy to add a numeric display to any Feather project. The HT16K33 driver handles all L...
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The Adafruit 4-Digit 7-Segment LED Matrix Display FeatherWing makes it easy to add a numeric display to any Feather project. The HT16K33 driver handles all LED multiplexing over I2C, so your Feather only needs two shared pins — leaving all other GPIO free for sensors, buttons, and additional displays.
This is the FeatherWing board only — no 7-segment display is included. It supports 4-digit 0.56" 7-segment displays with decimal points and a centre colon for clock applications. For a ready-to-go combo, choose one of the colour packs listed below.
Key Features
- HT16K33 LED Driver – I2C multiplexing with no additional pins required
- Universal Feather Compatibility – Works with any Adafruit Feather board
- Shared I2C Bus – Can coexist with other I2C sensors and displays
- Decimal Points and Colon – Supports full numeric display with clock formatting
- Arduino and CircuitPython Support – Ready-to-use libraries available
Combo Packs with Display Included
Ideal For
- Clocks and timers
- Sensor readouts and counters
- Score displays and dashboards
- Any project needing a simple numeric display
Package Contents
- 1× Adafruit 4-Digit 7-Segment LED Matrix Display FeatherWing (assembled and tested)
- 2× 16-pin headers
Jargon buster
Plain-language definitions for the technical terms used above.
- CircuitPython
- A beginner-friendly version of Python designed to run directly on microcontroller boards. If a product supports CircuitPython, you can often program it by copying code files onto the board rather than setting up a more complex toolchain.
- FeatherWing
- A FeatherWing is an add-on board made to plug into the Feather microcontroller board layout. Knowing a product is a FeatherWing helps you check whether it will physically and electrically fit your Feather-style mainboard.
- GPIO
- General-purpose input/output pins are microcontroller pins you can set in software to read signals, switch devices on and off, or connect to peripherals. The number of GPIO pins matters because it limits how many buttons, LEDs, sensors, and other parts you can wire directly to the board.
- Headers
- Rows of connector contacts on a fixed pitch (commonly 2.54 mm) used to link a board to a breadboard, jumper wires, or another board. They come as male pin headers and female socket headers; when a module ships with pre-soldered headers it can be used straight away, whereas bare pads require soldering the pins yourself.
- 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 (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- LED driver
- An LED driver is a control chip or circuit that supplies and switches power to LEDs. For a display board, it reduces the number of microcontroller pins needed and handles tasks like lighting the right segments and adjusting brightness.
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