--- product_id: 290902769 title: "Optical Fingerprint Reader Sensor Module Door Lock Access Control for Arduino Mega2560 UNO R3" brand: "geekstory" price: "¥7950" currency: JPY in_stock: true url: https://www.desertcart.jp/products/290902769-optical-fingerprint-reader-sensor-module-door-lock-access-control-arduino store_origin: JP region: Japan --- # UART serial interface up to 57600bps 3.8-7.0V DC power range Stores 240 fingerprint templates Optical Fingerprint Reader Sensor Module Door Lock Access Control for Arduino Mega2560 UNO R3 **Brand:** geekstory **Price:** ¥7950 **Availability:** ✅ In Stock ## Summary > 🔒 Unlock the future of secure access with lightning-fast fingerprint tech! ## Quick Answers - **What is this?** Optical Fingerprint Reader Sensor Module Door Lock Access Control for Arduino Mega2560 UNO R3 by geekstory - **How much does it cost?** ¥7950 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/290902769-optical-fingerprint-reader-sensor-module-door-lock-access-control-arduino) ## Best For - geekstory enthusiasts ## Why This Product - Trusted geekstory brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Robust Security Level 3:** Advanced false acceptance and refusal rates ensure only authorized users get in. - • **High-Speed Identification:** Fingerprint search and matching completed in milliseconds to keep your access swift. - • **Versatile Application Scope:** Perfect for door locks, safes, POS, attendance, and private club access control. - • **Compact & Lightweight Design:** At just 18g and slim profile, it fits effortlessly into your custom projects. - • **Seamless Arduino Integration:** Plug & play with Arduino UNO R3 & Mega2560 for instant biometric security. ## Overview The Geekstory Optical Fingerprint Reader Sensor Module offers a professional-grade biometric solution with a wide voltage range (3.8-7.0V), UART communication up to 57600bps, and storage for 240 unique fingerprints. Designed for seamless integration with Arduino UNO R3 and Mega2560, it delivers rapid fingerprint recognition with a high security level, ideal for advanced access control systems in both personal and industrial environments. ## Description Optical Fingerprint Reader Sensor Module Door Lock Access Control for Arduino Mega2560 UNO R3 ## Features - Upgraded to enhance performance: Original Seal is opened for upgrade ONLY and are tested, inspected post installing the upgrades to achieve the specifications as advertised. ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | Geekstory | | Package Dimensions | 16.51 x 10.16 x 1.02 cm; 18 g | | Item model number | GR2904 | | Manufacturer | Geekstory | | Series | GR2904 | | Color | Red | | Screen Resolution | 1024x768 | | Resolution | 1024x768 | | Processor Brand | ARM | | Processor Count | 1 | | Computer Memory Type | DDR DRAM | | Maximum Memory Supported | 1 GB | | Hard Disk Description | Dedicated fingerprint storage (240 fingerprints) | | Graphics Chipset Brand | arm | | Graphics Card Description | Dedicated | | Graphics Card Interface | Integrated | | Are Batteries Included | No | | Item Weight | 18 g | ## Product Details - **Brand:** Geekstory - **Graphics card description:** Dedicated - **Memory storage capacity:** 240 GB - **Personal computer design type:** Barebone - **Model name:** GR2904 - **Included components:** 1 x optischer Fingerabdruckleser-Sensor, 1 x Kabel - **Colour:** Red - **Special features:** Fngerprint Reader Module - **CPU manufacturer:** ARM - **Connectivity technology:** Ethernet, USB ## Images ![Optical Fingerprint Reader Sensor Module Door Lock Access Control for Arduino Mega2560 UNO R3 - Image 1](https://m.media-amazon.com/images/I/61SSOt+bWVL.jpg) ## Questions & Answers **Q: Can anyone assist in locating RPi2b code that i can use with this module?** A: Please Check the product details page, the first of the five characteristics has been updated.Please refer to the document link.Any question please feel free to contact. **Q: Does this work with the adafruit library?** A: Yes **Q: Does the led constantly flash?** A: No, the led only turn on when you put fingerprint on the scan area after uploading code **Q: Does this scanner work with the arduino pro micro and/or the arduino nano or just the arduino uno R3 thats in the description?** A: It can work with any microcontroller which with serial port:such as Arduino,51,avr,stm32,pic,arm,msp430 ## Frequently Bought Together - Geekstory Optical Fingerprint Reader Sensor Module Door Lock Access Control Red Light for Arduino Mega2560 UNO R3 - ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects - UXCELL DC 12V 1.1A 11.4mm Electromagnetic Solenoid Latch Lock for Cabinet Door Lock --- ## 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.jp/products/290902769-optical-fingerprint-reader-sensor-module-door-lock-access-control-arduino](https://www.desertcart.jp/products/290902769-optical-fingerprint-reader-sensor-module-door-lock-access-control-arduino) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-05-16*