{"id":1203,"date":"2025-05-11T18:00:19","date_gmt":"2025-05-11T12:30:19","guid":{"rendered":"https:\/\/vihaaniotgateway.in\/?post_type=product&#038;p=1203"},"modified":"2026-02-08T16:26:51","modified_gmt":"2026-02-08T10:56:51","slug":"r307-optical-fingerprint-sensor-module","status":"publish","type":"product","link":"https:\/\/vihaaniotgateway.in\/index.php\/product\/r307-optical-fingerprint-sensor-module\/","title":{"rendered":"\ud83d\udee1\ufe0f R307 Optical Fingerprint Sensor Module \u2013 Biometric Security for Arduino &#038; Embedded Systems"},"content":{"rendered":"<h2 class=\"\" data-start=\"281\" data-end=\"381\">\ud83d\udd12 R307 Optical Fingerprint Sensor Module \u2013 High Accuracy Biometric Scanner for Embedded Security<\/h2>\n<p class=\"\" data-start=\"383\" data-end=\"897\">The <strong data-start=\"387\" data-end=\"429\">R307 Optical Fingerprint Sensor Module<\/strong> is a compact and highly accurate biometric scanner designed for secure fingerprint recognition and enrollment in embedded systems. It uses advanced optical sensing and a built-in digital signal processor (DSP) to capture and process fingerprint images quickly and accurately. Whether you\u2019re working on a <strong data-start=\"734\" data-end=\"765\">biometric attendance system<\/strong>, <strong data-start=\"767\" data-end=\"792\">access control device<\/strong>, or a custom <strong data-start=\"806\" data-end=\"837\">IoT-based security solution<\/strong>, the R307 is a trusted choice for developers and hobbyists.<\/p>\n<p class=\"\" data-start=\"899\" data-end=\"1236\">Engineered for seamless integration with <strong data-start=\"940\" data-end=\"951\">Arduino<\/strong>, <strong data-start=\"953\" data-end=\"962\">ESP32<\/strong>, <strong data-start=\"964\" data-end=\"980\">Raspberry Pi<\/strong>, and various microcontroller platforms, this sensor simplifies biometric authentication through UART serial communication. The internal flash memory can store up to 1,000 unique fingerprint templates, allowing both 1:1 verification and 1:N identification.<\/p>\n<hr class=\"\" data-start=\"1238\" data-end=\"1241\" \/>\n<h3 class=\"\" data-start=\"1243\" data-end=\"1267\">\ud83d\udce6 Package Includes:<\/h3>\n<ul data-start=\"1268\" data-end=\"1396\">\n<li class=\"\" data-start=\"1268\" data-end=\"1305\">\n<p class=\"\" data-start=\"1270\" data-end=\"1305\">1 \u00d7 R307 Optical Fingerprint Sensor<\/p>\n<\/li>\n<li class=\"\" data-start=\"1306\" data-end=\"1338\">\n<p class=\"\" data-start=\"1308\" data-end=\"1338\">1 \u00d7 6-Pin Cable with Connector<\/p>\n<\/li>\n<li class=\"\" data-start=\"1339\" data-end=\"1396\">\n<p class=\"\" data-start=\"1341\" data-end=\"1396\">Pinout: VCC, GND, TX, RX, Touch, 3.3V (for LED control)<\/p>\n<\/li>\n<\/ul>\n<hr class=\"\" data-start=\"1398\" data-end=\"1401\" \/>\n<h3 class=\"\" data-start=\"1403\" data-end=\"1423\">\ud83d\udd0d Key Features:<\/h3>\n<ul data-start=\"1425\" data-end=\"2619\">\n<li class=\"\" data-start=\"1425\" data-end=\"1603\">\n<p class=\"\" data-start=\"1427\" data-end=\"1603\">\u2705 <strong data-start=\"1429\" data-end=\"1460\">Optical Fingerprint Imaging<\/strong>: Captures fingerprints with precision using optical sensing technology. The sensor surface is protected by a durable transparent acrylic lens.<\/p>\n<\/li>\n<li class=\"\" data-start=\"1607\" data-end=\"1773\">\n<p class=\"\" data-start=\"1609\" data-end=\"1773\">\u2705 <strong data-start=\"1611\" data-end=\"1637\">Built-in DSP Processor<\/strong>: Processes fingerprint image, performs feature extraction, and matches fingerprint data internally without needing external processing.<\/p>\n<\/li>\n<li class=\"\" data-start=\"1777\" data-end=\"1959\">\n<p class=\"\" data-start=\"1779\" data-end=\"1959\">\u2705 <strong data-start=\"1781\" data-end=\"1810\">User-Friendly Integration<\/strong>: Communicates over UART (TTL) at 9600 bps (configurable), easily interfaced with Arduino, ESP8266, STM32, or <a class=\"cursor-pointer\" rel=\"noopener\" data-start=\"1920\" data-end=\"1958\">Raspberry Pi<\/a>.<\/p>\n<\/li>\n<li class=\"\" data-start=\"1963\" data-end=\"2118\">\n<p class=\"\" data-start=\"1965\" data-end=\"2118\">\u2705 <strong data-start=\"1967\" data-end=\"1992\">High Storage Capacity<\/strong>: Can store up to <strong data-start=\"2010\" data-end=\"2041\">1,000 fingerprint templates<\/strong> in its onboard flash memory, making it suitable for multi-user environments.<\/p>\n<\/li>\n<li class=\"\" data-start=\"2120\" data-end=\"2261\">\n<p class=\"\" data-start=\"2122\" data-end=\"2261\">\u2705 <strong data-start=\"2124\" data-end=\"2147\">Fast Matching Speed<\/strong>: Typical image processing and fingerprint matching take less than 1 second, allowing near-instant authentication.<\/p>\n<\/li>\n<li class=\"\" data-start=\"2263\" data-end=\"2352\">\n<p class=\"\" data-start=\"2265\" data-end=\"2291\">\u2705 <strong data-start=\"2267\" data-end=\"2289\">Two Matching Modes<\/strong>:<\/p>\n<ul data-start=\"2294\" data-end=\"2352\">\n<li class=\"\" data-start=\"2294\" data-end=\"2321\">\n<p class=\"\" data-start=\"2296\" data-end=\"2321\">1:1 for direct comparison<\/p>\n<\/li>\n<li class=\"\" data-start=\"2324\" data-end=\"2349\">\n<p class=\"\" data-start=\"2326\" data-end=\"2349\">1:N for database search<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li class=\"\" data-start=\"2353\" data-end=\"2498\">\n<p class=\"\" data-start=\"2355\" data-end=\"2498\">\u2705 <strong data-start=\"2357\" data-end=\"2378\">Security Features<\/strong>: Supports command-based operations such as enroll, search, delete, and read system parameters with password protection.<\/p>\n<\/li>\n<li class=\"\" data-start=\"2500\" data-end=\"2619\">\n<p class=\"\" data-start=\"2502\" data-end=\"2619\">\u2705 <strong data-start=\"2504\" data-end=\"2519\">LED Control<\/strong>: The module includes a controllable onboard LED that lights up during scanning for visual feedback.<\/p>\n<\/li>\n<\/ul>\n<hr class=\"\" data-start=\"2621\" data-end=\"2624\" \/>\n<h3 class=\"\" data-start=\"2626\" data-end=\"2658\">\u2699\ufe0f Technical Specifications:<\/h3>\n<div class=\"_tableContainer_16hzy_1\">\n<div class=\"_tableWrapper_16hzy_14 group flex w-fit flex-col-reverse\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"2660\" data-end=\"3284\">\n<thead data-start=\"2660\" data-end=\"2715\">\n<tr data-start=\"2660\" data-end=\"2715\">\n<th data-start=\"2660\" data-end=\"2687\" data-col-size=\"sm\">Parameter<\/th>\n<th data-start=\"2687\" data-end=\"2715\" data-col-size=\"sm\">Specification<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"2772\" data-end=\"3284\">\n<tr data-start=\"2772\" data-end=\"2828\">\n<td data-start=\"2772\" data-end=\"2800\" data-col-size=\"sm\">Operating Voltage<\/td>\n<td data-col-size=\"sm\" data-start=\"2800\" data-end=\"2828\">3.3V to 6V<\/td>\n<\/tr>\n<tr data-start=\"2829\" data-end=\"2885\">\n<td data-start=\"2829\" data-end=\"2857\" data-col-size=\"sm\">Current Consumption<\/td>\n<td data-col-size=\"sm\" data-start=\"2857\" data-end=\"2885\">~50mA<\/td>\n<\/tr>\n<tr data-start=\"2886\" data-end=\"2942\">\n<td data-start=\"2886\" data-end=\"2914\" data-col-size=\"sm\">Interface<\/td>\n<td data-col-size=\"sm\" data-start=\"2914\" data-end=\"2942\">UART (TTL Serial)<\/td>\n<\/tr>\n<tr data-start=\"2943\" data-end=\"2999\">\n<td data-start=\"2943\" data-end=\"2971\" data-col-size=\"sm\">Baud Rate<\/td>\n<td data-col-size=\"sm\" data-start=\"2971\" data-end=\"2999\">9600 (default)<\/td>\n<\/tr>\n<tr data-start=\"3000\" data-end=\"3056\">\n<td data-start=\"3000\" data-end=\"3028\" data-col-size=\"sm\">Fingerprint Capacity<\/td>\n<td data-col-size=\"sm\" data-start=\"3028\" data-end=\"3056\">1,000 templates<\/td>\n<\/tr>\n<tr data-start=\"3057\" data-end=\"3113\">\n<td data-start=\"3057\" data-end=\"3085\" data-col-size=\"sm\">Matching Mode<\/td>\n<td data-col-size=\"sm\" data-start=\"3085\" data-end=\"3113\">1:1 and 1:N<\/td>\n<\/tr>\n<tr data-start=\"3114\" data-end=\"3170\">\n<td data-start=\"3114\" data-end=\"3142\" data-col-size=\"sm\">Imaging Time<\/td>\n<td data-col-size=\"sm\" data-start=\"3142\" data-end=\"3170\">&lt; 1 second<\/td>\n<\/tr>\n<tr data-start=\"3171\" data-end=\"3227\">\n<td data-start=\"3171\" data-end=\"3199\" data-col-size=\"sm\">Template Size<\/td>\n<td data-col-size=\"sm\" data-start=\"3199\" data-end=\"3227\">512 bytes<\/td>\n<\/tr>\n<tr data-start=\"3228\" data-end=\"3284\">\n<td data-start=\"3228\" data-end=\"3256\" data-col-size=\"sm\">Dimensions<\/td>\n<td data-col-size=\"sm\" data-start=\"3256\" data-end=\"3284\">44.6mm \u00d7 20mm \u00d7 17.5mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"sticky end-(--thread-content-margin) h-0 self-end select-none\">\n<div class=\"absolute end-0 flex items-end\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<hr class=\"\" data-start=\"3286\" data-end=\"3289\" \/>\n<h3 class=\"\" data-start=\"3291\" data-end=\"3311\">\ud83d\udd27 Applications:<\/h3>\n<ul data-start=\"3313\" data-end=\"3692\">\n<li class=\"\" data-start=\"3313\" data-end=\"3381\">\n<p class=\"\" data-start=\"3315\" data-end=\"3381\">Biometric-based <strong data-start=\"3331\" data-end=\"3357\">Access Control Systems<\/strong> for offices and homes<\/p>\n<\/li>\n<li class=\"\" data-start=\"3382\" data-end=\"3445\">\n<p class=\"\" data-start=\"3384\" data-end=\"3445\"><strong data-start=\"3384\" data-end=\"3409\">Attendance Management<\/strong> systems for schools or workplaces<\/p>\n<\/li>\n<li class=\"\" data-start=\"3446\" data-end=\"3483\">\n<p class=\"\" data-start=\"3448\" data-end=\"3483\"><strong data-start=\"3448\" data-end=\"3481\">Locker or Safe Authentication<\/strong><\/p>\n<\/li>\n<li class=\"\" data-start=\"3484\" data-end=\"3514\">\n<p class=\"\" data-start=\"3486\" data-end=\"3514\">Custom <strong data-start=\"3493\" data-end=\"3512\">IoT Smart Locks<\/strong><\/p>\n<\/li>\n<li class=\"\" data-start=\"3515\" data-end=\"3581\">\n<p class=\"\" data-start=\"3517\" data-end=\"3581\">Multi-user identity authentication in <strong data-start=\"3555\" data-end=\"3579\">embedded electronics<\/strong><\/p>\n<\/li>\n<li class=\"\" data-start=\"3582\" data-end=\"3633\">\n<p class=\"\" data-start=\"3584\" data-end=\"3633\">Integration into <strong data-start=\"3601\" data-end=\"3631\">Arduino biometric projects<\/strong><\/p>\n<\/li>\n<li class=\"\" data-start=\"3634\" data-end=\"3692\">\n<p class=\"\" data-start=\"3636\" data-end=\"3692\">Two-factor authentication (combined with RFID or keypad)<\/p>\n<\/li>\n<\/ul>\n<hr class=\"\" data-start=\"3694\" data-end=\"3697\" \/>\n<h3 class=\"\" data-start=\"3699\" data-end=\"3723\">\ud83d\udee0\ufe0f Compatible With:<\/h3>\n<ul data-start=\"3725\" data-end=\"3986\">\n<li class=\"\" data-start=\"3725\" data-end=\"3780\">\n<p class=\"\" data-start=\"3727\" data-end=\"3780\"><a class=\"cursor-pointer\" rel=\"noopener\" data-start=\"3727\" data-end=\"3780\">Arduino Uno R3 Board<\/a><\/p>\n<\/li>\n<li class=\"\" data-start=\"3781\" data-end=\"3842\">\n<p class=\"\" data-start=\"3783\" data-end=\"3842\"><a class=\"cursor-pointer\" rel=\"noopener\" data-start=\"3783\" data-end=\"3842\">ESP32 Development Board<\/a><\/p>\n<\/li>\n<li class=\"\" data-start=\"3843\" data-end=\"3890\">\n<p class=\"\" data-start=\"3845\" data-end=\"3890\"><a class=\"cursor-pointer\" rel=\"noopener\" data-start=\"3845\" data-end=\"3890\">Jumper Wires M\/F<\/a><\/p>\n<\/li>\n<li class=\"\" data-start=\"3935\" data-end=\"3986\">\n<p class=\"\" data-start=\"3937\" data-end=\"3986\"><a class=\"cursor-pointer\" rel=\"noopener\" data-start=\"3937\" data-end=\"3986\">Raspberry Pi 4 Model B<\/a><\/p>\n<\/li>\n<\/ul>\n<hr class=\"\" data-start=\"3988\" data-end=\"3991\" \/>\n<h3 class=\"\" data-start=\"3993\" data-end=\"4021\">\ud83d\udd10 Why Choose Vihaan IoT Gateway?<\/h3>\n<p class=\"\" data-start=\"4023\" data-end=\"4160\">At <strong data-start=\"4026\" data-end=\"4039\">Vihaan IoT Gateway<\/strong>, we ensure every fingerprint sensor is <strong data-start=\"4079\" data-end=\"4102\">individually tested<\/strong> for functionality before shipping. You also benefit from:<\/p>\n<ul data-start=\"4161\" data-end=\"4345\">\n<li class=\"\" data-start=\"4161\" data-end=\"4213\">\n<p class=\"\" data-start=\"4163\" data-end=\"4213\">\ud83d\udd27 Integration support and example Arduino codes<\/p>\n<\/li>\n<li class=\"\" data-start=\"4214\" data-end=\"4256\">\n<p class=\"\" data-start=\"4216\" data-end=\"4256\">\ud83d\ude9a Quick delivery and COD availability<\/p>\n<\/li>\n<li class=\"\" data-start=\"4257\" data-end=\"4293\">\n<p class=\"\" data-start=\"4259\" data-end=\"4293\">\ud83e\uddfe GST invoices for business use<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>High-accuracy R307 fingerprint sensor for biometric security. Ideal for Arduino, IoT, access control &amp; attendance systems. UART TTL, 3.3\u20136V.<\/p>\n","protected":false},"featured_media":1204,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false},"product_brand":[],"product_cat":[19,73],"product_tag":[],"class_list":["post-1203","product","type-product","status-publish","has-post-thumbnail","product_cat-electronics","product_cat-sensors-and-modules","first","outofstock","sale","sold-individually","taxable","shipping-taxable","purchasable","product-type-simple"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"High-accuracy R307 fingerprint sensor for biometric security. Ideal for Arduino, IoT, access control &amp; attendance systems. 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