> **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

# Red 7-segment clock display - 0.56 digit height

**Type:** Product page · **SKU:** ADA865 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/red-7-segment-clock-display-0-56-digit-height.html ([markdown](https://core-electronics.com.au/red-7-segment-clock-display-0-56-digit-height.html.md))

Design a clock, timer or counter into your next project using Adafruit's pretty 4-digit seven-segment display. These bright crisp displays are good for adding numeric output...

## Pricing

- **Price:** $7.95 (inc GST) — $7.23 AUD, exc GST
- **Quantity discounts:** 10+ $7.01 (exc GST) · 50+ $6.86 (exc GST)

## Availability & dispatch

- Out of stock — the product page offers email notification when it returns.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=ADA865:1` (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/ADA865:1.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

Design a clock, timer or counter into your next project using Adafruit's pretty 4-digit seven-segment display. These bright crisp displays are good for adding numeric output. Besides the four 7-segments, there are decimal points on each digit and an extra wire for colon-dots in the center (good for time-based projects).
 
 These are ultra bright 165mcd! You can drive these with less current to get the same brightness to save power, or crank them up to 20mA and have them really bright.
 
 These displays are multiplexed, common-cathode. What that means it that you can use a [74HC595](https://core-electronics.com.au/74hc595-shift-register-3-pack.html) or just 8 microcontroller pins if you can spare them to control the 8 anodes (7-seg + decimal) at about ~15mA each, and then connect [NPN transistors](https://core-electronics.com.au/npn-bipolar-transistors-pn2222-10-pack.html) or a [TPIC6B595](https://core-electronics.com.au/tpic6b595-high-power-shift-register-tpic6b595.html) to the cathodes to sink the 8\*20mA = ~120mA maximum per digit.
 
 These come in a bright red color, [We also have many other sizes and colors!](https://www.adafruit.com/category/37_103)

## Technical Details

This is a Common Cathode LED display

Dimensions: 0.76" x 1.9" (19.3mm x 50.3mm) Weight: 8.3g
 [Datasheet](https://core-electronics.com.au/attachments/localcontent/865datasheet_205011468fd.pdf)

 ![](https://core-electronics.com.au/attachments/localcontent/rohs_icon_8216055e11.jpg)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/8/6/865-00.jpg)