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Finger Print Sensor R307 -TTL UART

Finger Print Sensor R307 -TTL UART - Sensor - Arduino
Finger Print Sensor R307 -TTL UART - Sensor - Arduino
Finger Print Sensor R307 -TTL UART - Sensor - Arduino
Finger Print Sensor R307 -TTL UART - Sensor - Arduino
-41 %
Finger Print Sensor R307 -TTL UART - Sensor - Arduino
Finger Print Sensor R307 -TTL UART - Sensor - Arduino
Finger Print Sensor R307 -TTL UART - Sensor - Arduino
Finger Print Sensor R307 -TTL UART - Sensor - Arduino
Finger Print Sensor R307 -TTL UART

(inc GST)

  • Stock: In Stock
  • ₹10 FlyRobo Cashback.
  • SKU: FR-01-555
    5 or more ₹952
    15 or more ₹925

R307 Fingerprint Module consists of an optical fingerprint sensor, high-speed DSP processor, high-performance fingerprint alignment algorithm, high-capacity FLASH chips, and other hardware and software composition, stable performance, simple structure, with fingerprint entry, image processing, fingerprint matching, search and template storage, and other functions.


The R307 fingerprint module has two interface TTL UART and USB2.0, USB2.0 interface can be connected to the computer; RS232 interface is a TTL level, the default baud rate is 57600, can be changed, refer to a communication protocol; can And microcontrollers, such as ARM, DSP and other serial devices with a connection, 3.3V 5V microcontroller can be connected directly. Needs to connect the computer level conversion, level conversion note, embodiments such as a MAX232 circuit.


  • Independent fingerprint collection, fingerprint registration, fingerprint comparison (1: 1), and fingerprint search (1: N) function.
  • Low power consumption of the product
  • A strong anti-static ability, the anti-static index reached 15KV above.
  • Professional optical technology, precise module manufacturing techniques
  • Suitable for different applications, security levels can be set by the user to adjust.


Fingerprint sensor type Optical
Resolution 500 DPI
Interface USB1.1/UART(TTL logical level)
Sensor Life 100 million times
Verification Speed 0.3 sec
Scanning Speed 0.5 sec
Storage capacity 1000
RS232 communication baud rate 4800BPS~115200BPS changeable
False Acceptance Rate (FAR) 0.0001%
False Rejection Rate (FRR) 0.1%
Matching Method 1: N
Static indicators 15KVBacklight: bright green
Security level 5 (1,2,3,4,5(highest))
Character file size 256 bytes
Template size 512 bytes
Working current Typical 50 mA, Peak 80mA



Pin Pin Name Details
1 5V Regulated 5V DC
2 GND Common Ground
3 TXD Data output - Connect to MCU RX
4 RXD Data Input - Connect to MCU TX
5 TOUCH Active Low output when there is a touch on the sensor by finger
6 3.3V Use this wire to give 3.3V to the sensor instead of 5V


Difference Between R305 (Old) and R307 (New)

  R305 R307
Storage Capacity (Fingerprints) 250 1000
3.3V Operation No Yes
USB Operation No Yes
Finger Detect Output No Yes


Package Content:

1 x R307 fingerprint sensor Module

1 x wire connector

Character file size

256 bytes

Current consumption


False Acceptance Rate (FAR)


False Rejection Rate (FRR)


Operating Temperature Range

-20 ~ 50 °C

Operating Voltage

4.2 ~ 6 V


500 DPI

Scanning Speed

0.3 sec

Template size

512 bytes

Verification Speed

0.2 sec


4.6 cm


2.35 cm


2.1 cm

Questions2 Answers2 | Expand All
Can i get GST invoice for the order ?
Shubham Bhausaheb Modake
  • Yes, You can claim GST credit if you have a GST number. To do it you have to mention the GST number at the time of checkout. GST option appears in the Billing Address. If you are an existing customer of flyrobo then you can log in to your account ( Account → Address Book → Edit Address) and Then enter your GST number.
    FlyRobo[ 16/11/2022 ]
    Was this answer helpful?744
When will delivered order?
  • Order will be delivered within 1-3 days in metro city, 3-5 days in other city and 4-7 days in villages or small city. This is the average time of delivery in express shipping. but can change with different locations and different situations.
    FlyRobo[ 16/07/2021 ]
    Was this answer helpful?-1076
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