> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt # Adafruit 0.54" Quad Alphanumeric FeatherWing Display - Green **Type:** Product page · **SKU:** ADA3129 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia) **Page:** https://core-electronics.com.au/adafruit-0-54-quad-alphanumeric-featherwing-display-green.html ([markdown](https://core-electronics.com.au/adafruit-0-54-quad-alphanumeric-featherwing-display-green.html.md)) Display, elegantly, 012345678 or 9! Gaze, hypnotized, at ABCDEFGHIJKLM - well it can display the whole alphabet. You get the point. ## Pricing - **Price:** $25.95 (inc GST) — $23.59 AUD, exc GST - **Quantity discounts:** 10+ $22.88 (exc GST) · 50+ $22.41 (exc GST) ## Availability & dispatch - Available with a lead time — expect dispatch between Aug 18 and Aug 24. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=ADA3129:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart. - **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/ADA3129:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.) - **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there. - **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works) - **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt ## Description Display, elegantly, 012345678 or 9! Gaze, hypnotized, at ABCDEFGHIJKLM - well it can display the whole alphabet. You get the point. This is the **Green Adafruit 0.54" Dual Alphanumeric FeatherWing Display Combo Pack**! They also have these combo packs in [Blue](https://core-electronics.com.au/adafruit-0-54-quad-alphanumeric-featherwing-display-blue.html), [Red](https://core-electronics.com.au/adafruit-0-54-quad-alphanumeric-featherwing-display-red.html), [White](https://core-electronics.com.au/adafruit-0-54-quad-alphanumeric-featherwing-display-white.html), [Yellow-Green](https://core-electronics.com.au/adafruit-0-54-quad-alphanumeric-featherwing-yellow-green.html), and [Yellow](https://core-electronics.com.au/adafruit-0-54-quad-alphanumeric-featherwing-display-yellow.html). This is a nice, bright alphanumeric display that shows letters and numbers in a beautiful hue. It's super bright and designed for viewing from distances up to 23 feet (7 meters) away. Each of the digit sets have 14 segments on a dark background and Adafruit give you a set of two alphanumeric displays as well as a Featherwing driver board so you can make a clock or a four letter word. **Works with any and all Feathers!** 14-Segment Matrices like these are 'multiplexed' - so to control all the fourteen-segment LEDs you need 18 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. Wouldn't it be awesome if you could control a matrix without tons of wiring? That's where these Alphanumeric LED Matrix FeatherWings come in, they make it really easy to add a 4-digit alphanumeric display with decimal points. The LEDs themselves do not connect to the Feather. Instead, a matrix driver chip (HT16K33) does the multiplexing for you. The Feather simply sends i2c commands to the chip to tell it what LEDs to light up and it is handled for you. This takes a lot of the work and pin-requirements off the Feather. Since it uses only I2C for control, it works with any Feather and can share the I2C pins for other sensors or displays. The product kit comes with: - A fully tested and assembled [Adafruit 4-Digit 14-Segment Alphanumeric Display FeatherWing](https://core-electronics.com.au/adafruit-14-segment-alphanumeric-led-featherwing.html) - [0.54" Ultra-bright dual alphanumeric green display - 2 pack](https://core-electronics.com.au/dual-alphanumeric-display-green-0-54-digit-height-pack-of-2.html) - Two 16-pin headers [Of course, in classic Adafruit fashion, They also have a detailed tutorial showing you how to solder, wire and control the display.](https://learn.adafruit.com/14-segment-alpha-numeric-led-featherwing) We 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 14-segment](https://github.com/adafruit/Adafruit-LED-Backpack-Library). If you've been eyeing matrix displays but hesitated because of the complexity, his is the solution you've been looking for! **Technical Details** The board/chip uses 12C 7-bit address between 0x70-0x77, selectable with jumpers- FeatherWing Dimensions: 51mm x 23mm x 4.2mm / 2.0" x 0.9" x 0.165" - Backpack Weight: 4.6g - Dual Alphanumeric Display Dimensions: 21mm x 25mm x 7mm / 0.8" x 1" x 0.3" - Dual Alphanumeric Display Height w/ Pins: 14mm / 0.6" - Dual Alphanumeric Display Weight: 4.7g - The Dual Alphanumeric Display is a Common Cathode LED display ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/a/d/ada3128_1.jpg)