--- product_id: 55699177 title: "Optical Fingerprint Reader Sensor Module for Ar Duino 2560 R3 Raspberry Pi ESP8266 ESP32 51 AVR STM32 Red Light DC 3.8-7V" brand: "diymall" price: "COP 164129" currency: COP in_stock: true reviews_count: 8 category: "Di Ymall" url: https://www.desertcart.co/products/55699177-optical-fingerprint-reader-sensor-module-for-ar-duino-2560-r3 store_origin: CO region: Colombia --- # DC 3.8-7V Power Fingerprint Search Access Control Optical Fingerprint Reader Sensor Module for Ar Duino 2560 R3 Raspberry Pi ESP8266 ESP32 51 AVR STM32 Red Light DC 3.8-7V **Brand:** diymall **Price:** COP 164129 **Availability:** ✅ In Stock ## Summary > 🔐 Unlock the Future of Security! ## Quick Answers - **What is this?** Optical Fingerprint Reader Sensor Module for Ar Duino 2560 R3 Raspberry Pi ESP8266 ESP32 51 AVR STM32 Red Light DC 3.8-7V by diymall - **How much does it cost?** COP 164129 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/55699177-optical-fingerprint-reader-sensor-module-for-ar-duino-2560-r3) ## Best For - diymall enthusiasts ## Why This Product - Trusted diymall brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Advanced Security:** Offers fingerprint collection, registration, comparison, and search functionalities. - • **User-Friendly Setup:** Includes a plug cable and clear connection diagrams for easy installation. - • **Reliable Performance:** Designed for efficient operation within a DC 3.8-7V power range. - • **Seamless Integration:** Compatible with various microcontrollers including Arduino, STM32, and ESP8266. - • **Versatile Applications:** Ideal for fingerprint door locks, access control systems, and secure payment solutions. ## Overview The DIYmall Optical Fingerprint Reader Sensor Module is a versatile and efficient solution for integrating advanced fingerprint recognition into your projects. Compatible with a wide range of microcontrollers, it supports various applications from access control to secure payments, making it an essential tool for modern security systems. ## Description Product description Description Package Includes 1 X Optical Fingerprint Reader Sensor 2 X Cable > It can work with any microcontroller which with serial port:such as Arduino,51,avr,stm32,pic,arm,msp430 > Many functions:fingerprint collection, fingerprint registration, fingerprint comparison and fingerprint search Applications > Fingerprint door locks, safes, guns, financial and other security areas; > Access control systems, industrial computers, POS machines, driving training, attendance and other areas of identity; > Private clubs, management software, licensing and other management areas; > Medicare recipients, pensioners receive, fingerprint payment and other financial areas. > Specifications: Supply voltage: DC 3.8 ~ 7.0V > Backlight color: red > Light way: long light / flashing > Supply current: Operating current: Peak current: Fingerprint image input time: Window area: 15 × 17mm > Matching method: Comparison method (1: 1) > Search method (1: N) > Characteristic file: 384 bytes > Template file: 786 bytes > Storage capacity: 240 > Security Level: 3 (from low to high: 1,2,3,4,5) > False Acceptance Rate (FAR): Refusal rate (FRR): Search time: interface: UART (TTL logic level) > Communication baud rate (UART): (9600 × N) bps Where N = 1 ~ 12 (default N = 6, ie 57600bps) Review: It's Working (Adafruit fingerprint library works) - Comes with a ton of documentation including Arduino, CPP, and RPi files (which you can all see before purchase through the link on this page). The Arduino files seem very similar to the Adafruit fingerprint library. I had a few issues (since I'm somewhat new to these things) with the included library, but the Adafruit one works perfectly, so I won't drop ratings for that. I honestly am not entirely sure what the Blue and Yellow wires are for. I believe it's some On/Off control of the actual sensor, but leaving them unplugged works fine with the Adafruit library. No complaints here. The 360 directional orientation of fingerprints seems to work well, I have a finger that I've tested from many different directions and they work. Review: It might not work. - Item was dead on arrival. 2 hours of troubleshooting and trying to fix it, to no avail. Look for a unit with better QC or order a few of these in case you get a dead one like I did. ## Features - It can work with any microcontroller which with serial port: such as Ar duino,51,avr,stm32,pic,arm,msp430. Pls note: the connection for the fingerprint sensor with 2560 and R3 is different, pls follow the connection diagram shows in the product images. - Functions: fingerprint collection, fingerprint registration, fingerprint comparison and fingerprint search;Applications: Fingerprint door locks, Access control systems, management software, fingerprint payment etc. - What you will get is: 1 X Fingerprint Reader Sensor Module with 1pc plug cable. If any question, pls contact us by email.You can find " Sold by DIYmall" under Buy Now button, click "DIYmall" and you will get to a new page, click "Ask a question". ## Technical Specifications | Specification | Value | |---------------|-------| | Best Sellers Rank | #147 in Security & Surveillance Biometrics | | Customer Reviews | 3.8 out of 5 stars 35 Reviews | ## Images ![Optical Fingerprint Reader Sensor Module for Ar Duino 2560 R3 Raspberry Pi ESP8266 ESP32 51 AVR STM32 Red Light DC 3.8-7V - Image 1](https://m.media-amazon.com/images/I/61KquuwwbAL.jpg) ![Optical Fingerprint Reader Sensor Module for Ar Duino 2560 R3 Raspberry Pi ESP8266 ESP32 51 AVR STM32 Red Light DC 3.8-7V - Image 2](https://m.media-amazon.com/images/I/51-fZXtmh7L.jpg) ![Optical Fingerprint Reader Sensor Module for Ar Duino 2560 R3 Raspberry Pi ESP8266 ESP32 51 AVR STM32 Red Light DC 3.8-7V - Image 3](https://m.media-amazon.com/images/I/41YI7a61wsL.jpg) ![Optical Fingerprint Reader Sensor Module for Ar Duino 2560 R3 Raspberry Pi ESP8266 ESP32 51 AVR STM32 Red Light DC 3.8-7V - Image 4](https://m.media-amazon.com/images/I/61al2avhWfL.jpg) ![Optical Fingerprint Reader Sensor Module for Ar Duino 2560 R3 Raspberry Pi ESP8266 ESP32 51 AVR STM32 Red Light DC 3.8-7V - Image 5](https://m.media-amazon.com/images/I/61cv9CB40qL.jpg) ## Questions & Answers **Q: Can you store multiple fingerprints?** A: yes, you can store max 240 fingerprints. **Q: Anyone know how u would go about coding this and the setup?** A: There is a link they provide to files and a video. Once I modified the code, it worked fine. **Q: Can this be setup and used with the same software as the Adafruit one?** A: I used the Adafruit Arduino library and it worked perfectly. **Q: How do I access the Raspberry pi code library?** A: You can download code from this link https://drive.google.com/open?id=1D7mYqCRaZkpc7mrxKLrzcEfIVnMnYBrv ## Customer Reviews ### ⭐⭐⭐⭐⭐ It's Working (Adafruit fingerprint library works) *by L***G on March 15, 2019* Comes with a ton of documentation including Arduino, CPP, and RPi files (which you can all see before purchase through the link on this page). The Arduino files seem very similar to the Adafruit fingerprint library. I had a few issues (since I'm somewhat new to these things) with the included library, but the Adafruit one works perfectly, so I won't drop ratings for that. I honestly am not entirely sure what the Blue and Yellow wires are for. I believe it's some On/Off control of the actual sensor, but leaving them unplugged works fine with the Adafruit library. No complaints here. The 360 directional orientation of fingerprints seems to work well, I have a finger that I've tested from many different directions and they work. ### ⭐ It might not work. *by M***. on April 25, 2026* Item was dead on arrival. 2 hours of troubleshooting and trying to fix it, to no avail. Look for a unit with better QC or order a few of these in case you get a dead one like I did. ### ⭐⭐⭐⭐⭐ Well spent *by C***I on April 26, 2025* Fully functional ## Frequently Bought Together - DIYmall Optical Fingerprint Reader Sensor Module for Ar Duino 2560 R3 Raspberry Pi ESP8266 ESP32 51 AVR STM32 Red Light DC 3.8-7V - Arduino Uno REV3 [A000066] - ATOPLEE Electromagnetic Solenoid Lock,Mini DC 12V 0.43A Door Drawer Tongue Down Slim Design Assembly Magnetic Lock for Cabinet Door Drawer,27X29X18mm --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co/products/55699177-optical-fingerprint-reader-sensor-module-for-ar-duino-2560-r3](https://www.desertcart.co/products/55699177-optical-fingerprint-reader-sensor-module-for-ar-duino-2560-r3) --- *Product available on Desertcart Colombia* *Store origin: CO* *Last updated: 2026-05-25*