> **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 # Rugged Panel Mount Fingerprint Sensor with Bi-Color LED Ring - R503 **Type:** Product page · **SKU:** ADA4651 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia) **Page:** https://core-electronics.com.au/rugged-panel-mount-fingerprint-sensor-with-bi-color-led-ring-r503.html ([markdown](https://core-electronics.com.au/rugged-panel-mount-fingerprint-sensor-with-bi-color-led-ring-r503.html.md)) Secure your project with biometrics - this all-in-one optical fingerprint sensor will make adding fingerprint detection and verification super simple. It even has an LED ring built around the detection pad, which can be set to red, blue or purple (as well as some fading/blinking effects) for a great user experience. ## Pricing - **Price:** $70.70 (inc GST) — $64.27 AUD, exc GST - **Quantity discounts:** 10+ $62.35 (exc GST) · 50+ $61.05 (exc GST) ## Availability & dispatch - Available with a lead time — expect dispatch between Sep 03 and Sep 07. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=ADA4651:1` (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/ADA4651:1.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 Secure your project with biometrics - this all-in-one optical fingerprint sensor will make adding fingerprint detection and verification super simple. It even has an LED ring built around the detection pad, which can be set to red, blue or purple (as well as some fading/blinking effects) for a great user experience. These modules are typically used in safes - there's a high powered DSP chip that does the image rendering, calculation, feature-finding, and searching. Connect to any microcontroller or system with TTL serial, and send packets of data to take photos, detect prints, hash, and search. You can also enroll new fingers directly - up to 200 fingerprints can be stored in the onboard FLASH memory. Adafruit like this particular sensor because its a nice rugged metal body, with panel-mounting that will make it easy to add to any product or project. It also comes with a 6-pin Molex-style 1mm pitch connector, which you can easily cut off and solder directly to the wires. But, of course, Adafruit wouldn't leave you a manual and a "good luck!" - Adafruit have written both an [Arduino library](https://github.com/adafruit/Adafruit-Fingerprint-Sensor-Library) and [CircuitPython library](https://github.com/adafruit/Adafruit_CircuitPython_Fingerprint) so that you can get running in under 10 minutes. The library can enroll and search so it's perfect for any project. Adafruit have also written a detailed tutorial on wiring and use. **Technical Details** Specifications - Model: R503 - Capacitive Fingerprint Module - Interface: TTL UART - Resolution: 508 DPI - Voltage: 3.3VDC - Capacity: 200 fingerprints - Sensing array: 192x192 pixels - Working current: 20mA - Standby current: Typical touch standby voltage: 3.3V, Average current: 2uA - Module size: 28mm (external diameter) / 23.5mm (inner diameter) - Module height: 15.5mm - Sensor area: 15.5mm - LED Colors: Blue and Red - Scanning speed: < 0.2 second - Verification speed: < 0.3 second - Matching method: 1:1; 1:N - FRR: ≤1% - FAR: ≤0.001% - Work environment: -20ºC – 60ºC - Work humidity: 10-85% - Anti-static capacity: 15KV - Abrasive resistance intensity: 1 million times - Communications baud rate (UART): (9600 × N) bps where N = 1 ~ 12 (default is 57600bps) ## Guides for this product - [Fingerprint Scanner with Raspberry Pi Single Board Computer - Unlock with Biometrics!](https://core-electronics.com.au/guides/raspberry-pi/fingerprint-scanner-raspberry-pi/) ## Videos for this product - [Fingerprint Scanner with Raspberry Pi Single Board Computer - Unlock with Biometrics!](https://core-electronics.com.au/videos/fingerprint-scanner-with-raspberry-pi-single-board-computer-unlock-with-biometrics) ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/a/d/ada4651-1.jpg)