This is the R307s Optical Fingerprint Reader Sensor Module. R307s fingerprint module is a fingerprint sensor with a TTL UART interface for direct connections to microcontroller UART or to PC through MAX232 / USB-Serial adapter. The user can store the fingerprint data in the module and can configure it in 1:1 or 1: N mode for identifying the person.
The FP module can directly interface with 3.3 or 5v Microcontroller. A level converter (like MAX232) is required for interfacing with PC serial port.
Integrated image collecting and algorithm chip together, ALL-in-One Fingerprint reader can conduct secondary development, can be embedded into a variety of end products. Users can conduct secondary development, can be embedded into a variety of end products, such as access control, attendance, safety deposit box, car door locks
Low power consumption, low cost, small size, excellent performance, Professional optical technology, precise module manufacturing technics. Good image processing capabilities can successfully capture an image up to resolution 500 dpi Finger detection function.
Pinouts :
5V : Regulated 5V DC
GND : Common Ground
TXD : Data output – Connect to MCU RX
RXD : Data Input – Connect to MCU TX
TOUCH : Active Low output when there is touch on sensor by finger
3.3V : Use this wire to give 3.3V to sensor instead of 5V
USB Cable Connections are 5V/D /D-/GND (Optional)
Features
Integrated image collecting and algorithm chip together, ALL-in-One.
The fingerprint reader can conduct secondary development, can be embedded into a variety of end products.
Low power consumption, low cost, small size, excellent performance.
Professional optical technology, precise module manufacturing techniques.
Good image processing capabilities can successfully capture an image up to resolution 500 dpi.
Package Includes
1 x R307s Optical Fingerprint Reader Sensor Module.
The R307S Optical Fingerprint Reader Sensor Module is a versatile biometric/ecg/emg sensor used across a wide range of applications including electronics projects, DIY builds, prototyping, and educational experiments.
Common use cases:
Integrating into a custom electronics project
Learning and experimenting with circuits
Replacing or upgrading components in existing setups
This product is ideal for electronics enthusiasts, engineers, and students.
Technical Tip: Always verify voltage and current requirements before connecting to your circuit. Check datasheets for detailed specifications and pin configurations.
Shipping & Delivery
Free shipping on orders above ₹999 across India
Dispatched within 1-3 business days
Expected delivery: 3-7 business days depending on location
Secure packaging to ensure safe transit of electronic components
Weight
0.020001 kg
15 Days Warranty
Please note that this item is only covered by a standard supplier warranty against manufacturing defects for a period of 15days from the time of delivery. It is important to understand that only manufacturing defects are covered under this warranty, and any other issues will not be considered for reimbursement or replacement. We strongly advise inspecting the product upon delivery to ensure it meets your expectations. In case of any manufacturing defects, we guarantee reimbursement or replacement.
What voids warranty:
If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.
Sanjay Nair –
Excellent R307S Optical Fingerprint Reader Sensor! Readings are accurate and consistent. Perfect for my project.
Tejas Srivastava (verified owner) –
Nice R307S Optical Fingerprint Reader Sensor. Readings are mostly accurate. Good enough for my hobby project.
Shailendra Singh (verified owner) –
Anil Srivastava –
Pretty good R307S Optical Fingerprint Reader Sensor. Documentation could be better but the sensor itself is solid.
Yashwant Modi (verified owner) –
Decent R307S Optical Fingerprint Reader Sensor for the price. Requires proper wiring but works well once set up.
Raj Patel (verified owner) –
Nice R307S Optical Fingerprint Reader Sensor. Readings are mostly accurate. Good enough for my hobby project.
Mukesh Malhotra (verified owner) –
Great quality R307S Optical Fingerprint Reader Sensor. Calibrated it easily and the accuracy is impressive.
Sahil Arora (verified owner) –
Nice R307S Optical Fingerprint Reader Sensor. Readings are mostly accurate. Good enough for my hobby project.
Pankaj Negi –
Decent R307S Optical Fingerprint Reader Sensor for the price. Requires proper wiring but works well once set up.
Devansh Khanna (verified owner) –
Great quality R307S Optical Fingerprint Reader Sensor. Calibrated it easily and the accuracy is impressive.
Jatin Tiwari (verified owner) –
Good R307S Optical Fingerprint Reader Sensor. Works as described. Calibration needed some patience but results are good.