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Finger Print Sensor R307 -TTL UART

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.

 Features:

  • 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.

Specifications:

Fingerprint sensor typeOptical
Resolution500 DPI
InterfaceUSB1.1/UART(TTL logical level)
Sensor Life100 million times
Verification Speed0.3 sec
Scanning Speed0.5 sec
Storage capacity1000
RS232 communication baud rate4800BPS~115200BPS changeable
False Acceptance Rate (FAR)0.0001%
False Rejection Rate (FRR)0.1%
Matching Method1: N
Static indicators15KVBacklight: bright green
Security level5 (1,2,3,4,5(highest))
Character file size256 bytes
Template size512 bytes
Working currentTypical 50 mA, Peak 80mA


Pinouts:

PinPin NameDetails
15VRegulated 5V DC
2GNDCommon Ground
3TXDData output - Connect to MCU RX
4RXDData Input - Connect to MCU TX
5TOUCHActive Low output when there is a touch on the sensor by finger
63.3VUse this wire to give 3.3V to the sensor instead of 5V


Difference Between R305 (Old) and R307 (New)

 R305R307
Storage Capacity (Fingerprints)2501000
3.3V OperationNoYes
USB OperationNoYes
Finger Detect OutputNoYes

 

Package Content:

1 x R307 fingerprint sensor Module

1 x wire connector

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