R307 Optical Fingerprint Sensor Module
R307 Optical Fingerprint Sensor Module
R307 Optical Fingerprint Sensor Module
The R307 Optical Fingerprint Sensor Module is a high-performance biometric solution designed for secure fingerprint recognition in embedded systems and microcontroller projects. Featuring a built-in high-speed DSP processor and onboard flash memory capable of storing up to 1,000 fingerprint templates, this module delivers fast, reliable identification with a low false acceptance rate. Communicating via UART/TTL serial interface, it integrates seamlessly with Arduino, Raspberry Pi, ESP32, and other popular development platforms. Ideal for access control systems, attendance machines, smart locks, and IoT security applications. Available at The Tech Depot, Bengaluru with fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support.
Specifications
| Sensor Type | Optical Fingerprint Sensor |
| Model | R307 |
| Processor | Built-in High-Speed DSP |
| Fingerprint Capacity | Up to 1,000 Templates (Onboard Flash) |
| Resolution | 500 DPI |
| Image Capture Size | 256 x 288 Pixels |
| Verification Speed | < 1 Second (1:1 Matching) |
| Search Speed | < 1 Second (1:N, N = 1,000) |
| False Acceptance Rate (FAR) | < 0.001% |
| False Rejection Rate (FRR) | < 1.0% |
| Communication Interface | UART / TTL Serial (Default Baud Rate: 57600 bps) |
| Operating Voltage | 3.8V - 7.0V DC (Typical 5V) |
| Operating Current | < 120mA (Typical) |
| Backlight | Green LED Indicator |
| Window Dimensions | 19mm x 21mm (Sensing Area) |
| Module Dimensions | Approx. 55mm x 32mm x 21.5mm |
| Connector | JST 4-Pin (VCC, TX, RX, GND) |
| Operating Temperature | -20 degreesC to +50 degreesC |
| Compatibility | Arduino, Raspberry Pi, ESP32, ESP8266, STM32, PIC & Other MCUs |
| Library Support | Adafruit Fingerprint Sensor Library (Arduino IDE) |
| Origin | Original / Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Why Choose the R307 Optical Fingerprint Sensor Module?
- Onboard DSP processor handles all fingerprint enrollment, matching, and searching - minimal load on your host microcontroller
- Stores up to 1,000 fingerprint templates in built-in flash memory with no external storage required
- 500 DPI optical resolution ensures accurate capture of fine ridge details for reliable identification
- Ultra-low false acceptance rate (< 0.001%) provides high-security biometric authentication
- Simple 4-wire UART/TTL interface (VCC, TX, RX, GND) makes wiring and integration straightforward
- Wide voltage tolerance (3.8V - 7V) allows direct connection to both 5V and 3.3V logic systems
- Extensive library support including the popular Adafruit Fingerprint Sensor Library for Arduino IDE
- Sub-second verification and search speeds suitable for real-time access control applications
- Compact form factor fits easily into enclosures for smart locks, attendance terminals, and embedded devices
- 100% authentic module sourced directly from authorized distributors - authentication verified
- 1-5 day shipping, 7-8 day delivery across India from our Bengaluru warehouse; same-day delivery within Bengaluru
- Expert technical support included to help you with wiring, coding, and troubleshooting
Project Ideas
- Biometric Door Lock System: Build a secure smart lock using Arduino or ESP32 that grants access only to enrolled fingerprints, replacing traditional keys or PINs with reliable biometric authentication.
- Fingerprint Attendance System: Create an automated attendance tracker for offices, classrooms, or workshops that logs check-in and check-out times with fingerprint verification and stores records on an SD card or cloud database.
- IoT Secure Access Control: Combine the R307 with an ESP32 or Raspberry Pi and a solenoid/electric strike to build a WiFi-connected access control system with remote monitoring, real-time notifications, and web dashboard management.
- Biometric Voting Machine: Design a secure electronic voting system for college elections or society meetings where each voter authenticates via fingerprint to prevent duplicate voting.
- Fingerprint-Activated Safe or Locker: Integrate the sensor into a personal safe or storage lo
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy R307 Optical Fingerprint Sensor Module Online in India
Purchase the R307 Optical Fingerprint Sensor Module online at The Tech Depot - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on R307 Optical Fingerprint Sensor Module with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy R307 Optical Fingerprint Sensor Module at the best price in India? The Tech Depot offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.