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 microcontroller, 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. 

 

About the module's power supply

     Fingerprint module board marked with 3.3V - 2 contacts short circuit, you can use DC3.3V

 

Technical Parameters

  • Supply voltage: DC 4.2 ~ 6.0V

  • Supply current: Working current: 50mA (typical) Peak current: 80mA

  • Fingerprint image input time: <0.3 seconds

  • Window area: 14x18 mm

  • Matching method: Comparison method (1: 1)

  • Search method (1: N)

  • Characteristic file: 256 bytes

  • Template file: 512 bytes

  • Storage capacity: 1000 pieces

  • Security Level: Five (from low to high: 1,2,3,4,5)

  • Fake rate (FAR): <0.001%

  • Refusal rate (FRR): <1.0%

  • Search time: <1.0 seconds (1: 1000 hours, mean value)

  • Host interface: UART \ USB1.1

  • Communication baud rate (UART): (9600xN) bps Where N = 1 ~ 12 (default N = 6, ie 57600bps)

  • Working environment: Temperature: -20 ℃ - +40 ℃ Relative humidity: 40% RH-85% RH (no condensation)

  • Storage environment: Temperature: -40 ℃ - +85 ℃ Relative humidity: <85% H (no condensation)

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