> **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

# Fingerprint Sensor (GT-NUCL1633)

**Type:** Product page · **SKU:** SEN-21210 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/fingerprint-sensor-gt-nucl1633.html ([markdown](https://core-electronics.com.au/fingerprint-sensor-gt-nucl1633.html.md))

The GT-NUCL1633K1 is the latest miniature fingerprint sensor with extensive enhancements on power consumption and user flexibility from ADH-Tech...

## Pricing

- **Price:** $50.40 (inc GST) — $45.82 AUD, exc GST
- **Quantity discounts:** 5+ $44.45 (exc GST) · 25+ $43.53 (exc GST) · 100+ $41.69 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 28 and Sep 03.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=SEN-21210:1` (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/SEN-21210:1.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

The GT-NUCL1633K1 is the latest miniature fingerprint sensor with extensive enhancements on power consumption and user flexibility from ADH-Tech. It allows 360-degree rotation, which enables maximum performance without compromising on design aesthetics. It even works well in less than ideal conditions like when a finger is wet.

The product integrates an optical sensor, light source, and touch under a glass cover. This allowing it to instantaneously capture high resolution images of the fingerprint while rapidly outputting the captured images through the high speed SPI interface to the MCU for recognition algorithm.

The GT-NUCL1633 sensor's advanced optical technology, press instructions, durable structure, high ESD immunity and other features combine to provide designers with a reliable and highly functional sensor for products requiring fingerprint recognition functionality.

### Includes

- GT-NUCL1633 Fingerprint Sensor
- 6 wire UART Interface Cable

### Features

- Under Glass Sensor Positioning (No ESD concern)
    - Will support an additional 2mm of cover glass if needed
    - Allows for wet finger recognition
- Indication LED Illumination in the ring of the device (green)
- Matching Functionality Embedded in the Device
- 3.3V Supply Voltage
- 216 x 216 pixel array
- 1024 Grayscale Image Quality
- 30 Fingerprint Storage Capacity
- UART Interface (115200bps Baud)
- 20°-70°C Operating Temperature
- Dimensions
    - 7.1mm Height
    - 21mm Outer Diameter
    - 19mm Inner Diameter

### Documents

- [Datasheet](https://core-electronics.com.au/attachments/localcontent/GT-nucl1633k1_product_specification_v1_97689143053.pdf)
- [Programming Guide](https://core-electronics.com.au/attachments/localcontent/GT-NUCL1633K1_Programming_guide_V1_75586d5c758.pdf)
- [Design Note](https://core-electronics.com.au/attachments/localcontent/Design_Note_GT-NUCL1633K1_V1_751649c0d98.pdf)
- [Demo Software](https://core-electronics.com.au/attachments/localcontent/GT-NUCL1633APV_2321465a58e.rar)
- STEP File

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/S/E/SEN-21210-1.jpg)