Ultra-Slim Round Fingerprint Sensor and 6-pin Cable

SKU: ADA4750 Brand: Adafruit Guides (1)
Secure your project with biometrics - this adorably tiny, all-in-one, optical fingerprint sensor will make adding fingerprint detection and verification super simple. It's extremely slim, with a plastic casing that can be glued or panel mounted into any enclosure! There are some embedded blue LEDs that light up the outer casing when the sensor is waiting for finger touches.
$40.35 AUD, inc GST
$36.68 AUD, exc GST

In stock, ships same business day if ordered before 2PM
Delivered by Tue, 5th of Mar

Quantity Discounts:

  • 10-25 $35.22 (exc GST)
  • 25+ $34.12 (exc GST)
- +

1 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

Shipping:

  • $6+ Standard (5+ days*, tracked)
  • $10+ Express (2+ days*, tracked)
  • FREE Pickup (Newcastle only - must order online*)

Shipping costs may increase for heavy products or large orders.

Exact shipping can be calculated on the view cart page.

*Conditions apply, see shipping tab below.

Secure your project with biometrics - this adorably tiny, all-in-one, optical fingerprint sensor will make adding fingerprint detection and verification super simple. It's extremely slim, with a plastic casing that can be glued or panel mounted into any enclosure! There are some embedded blue LEDs that light up the outer casing when the sensor is waiting for finger touches.

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 80 fingerprints can be stored in the onboard FLASH memory.

It also comes with a 6-pin Molex-style 1mm pitch connector, which you can easily cut off and solder directly to the wires. You can solder and heatshrink the included tinned pigtails, or crimp them with 0.1" housings like those from Pololu's range

But, of course, Adafruit wouldn't leave you a manual and a "good luck!" - Adafruit have written both an Arduino library and CircuitPython library 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 of these types fingerprint sensors.

Use this pin-out to connect to your microcontroller, and then use Adafruit's library to interface over UART pins. This sensor now uses 57600 baud but some older versions were set to 115200 baud rather than the 'standard' 57600 used by many other sensors, so you may need to update the examples to 115200 baud for the sensor to respond (just try both!)

  • Black to GND
  • Yellow to Microcontroller TX (data out from microcontroller)
  • Green to Microcontroller RX (data in from microcontroller)
  • Red to 3.3V VIN
  • White to IRQ (can leave disconnected)
  • Blue to 3.3V VCC (can leave disconnected)

Technical Details

Datasheets, software, wiring examples and more all in the Learning System guide

  • Sensor diameter: 20.8mm
  • Cable assembly length: ~100mm

Revision History:

  • As of May 21, 2021 - the sensor has been changed to 57600 baud instead of 115200 baud default

    This product is listed in:

    Sensors>Biometric

    Product Comments

    Exact shipping can be calculated on the view cart page (no login required).

    Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

    We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

    • $3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
    • $6+ for Standard Post (typically 6+ business days, tracked)
    • $10+ for Express Post (typically 2+ business days, tracked)
    • Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

    Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

    Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

    International Orders - the following rates are for New Zealand and will vary for other countries:

    • $11+ for Pack and Track (3+ days, tracked)
    • $16+ for Express International (2-5 days, tracked)

    If you order lots of gear, the postage amount will increase based on the weight of your order.

    Our physical address (here's a PDF which includes other key business details):

    Unit 18, 132 Garden Grove Parade
    Adamstown
    NSW, 2289
    Australia

    Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

    Have a product question? We're here to help!

    Write Your Own Review

    Videos

    View All

    Guides

    Effective Ways To Detect People Using Common Sensors

    In this guide, we'll look at common methods of detecting people and some of the different sensors y...
    In this guide, we'll look at common methods of detecting people and some of the different sensors y...

    Fingerprint Scanner with Raspberry Pi Single Board Computer - Unlock with Biometrics!

    Let's unlock Biometric Control on our Raspberry Pi Single Board Computers! Biometric Technology use...
    Let's unlock Biometric Control on our Raspberry Pi Single Board Computers! Biometric Technology use...

    The Maker Revolution

    The Maker Revolution celebrates the creation of new devices and the modification of existing ones - ...
    The Maker Revolution celebrates the creation of new devices and the modification of existing ones - ...

    Getting Hands-on with Sensors

    What good is a robot if it can’t interact with the environment around it? Sensors are the back...
    What good is a robot if it can’t interact with the environment around it? Sensors are the back...

    Projects

    WhyzaGC - Feather ESP32 addon to the MightyOhm Gieger Counter

    This project is about adding a wireless Adafruit Feather HUZZAH ESP8266 or ESP32 v2 with Adafruit F...
    This project is about adding a wireless Adafruit Feather HUZZAH ESP8266 or ESP32 v2 with Adafruit F...
    Feedback

    Please continue if you would like to leave feedback for any of these topics:

    • Website features/issues
    • Content errors/improvements
    • Missing products/categories
    • Product assignments to categories
    • Search results relevance

    For all other inquiries (orders status, stock levels, etc), please contact our support team for quick assistance.

    Note: click continue and a draft email will be opened to edit. If you don't have an email client on your device, then send a message via the chat icon on the bottom left of our website.

    Makers love reviews as much as you do, please follow this link to review the products you have purchased.