Adafruit
Adafruit 0.54 Quad Alphanumeric FeatherWing Display - White
The Adafruit 0.54" Quad Alphanumeric FeatherWing Display in white adds a bright, easy-to-read 4-character 14-segment LED display to any Feather microcontroll...
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The Adafruit 0.54" Quad Alphanumeric FeatherWing Display in white adds a bright, easy-to-read 4-character 14-segment LED display to any Feather microcontroller. Each character can show full alphanumeric text (A–Z, 0–9) plus symbols, making it ideal for clocks, sensor readouts, status messages, and scrolling text.
The onboard HT16K33 LED driver handles all multiplexing over I2C, requiring just two pins and leaving the rest free for your project. The I2C bus can be shared with other sensors and displays, and the address is selectable from 0x70–0x77 via solder jumpers — allowing up to eight displays on a single bus.
Key Features
- 14-Segment Alphanumeric – Displays letters, numbers, and symbols with full A–Z and 0–9 support
- HT16K33 I2C Driver – Handles all multiplexing over I2C with selectable address (0x70–0x77)
- Works with Any Feather – Compatible with all Adafruit Feather boards
- Bright White LEDs – Visible from up to 7 metres away on a dark background
- Arduino and CircuitPython Libraries – Get up and running with well-documented libraries for both platforms
Also Available
Package Contents
- 1× Adafruit 4-Digit 14-Segment Alphanumeric Display FeatherWing
- 2× 0.54" Dual Alphanumeric White Display modules
- 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.
- 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.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
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