R307 is a finger print sensor module with TTL UART interface. The user can store the finger print 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 3v3 Microcontroller. A level converter (like MAX232) is required for interfacing with PC.
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.
Pinouts :-
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 touch on sensor by finger
6 3.3V Use this wire to give 3.3V to sensor instead of 5V
USB Cable Connections are 5V/D+/D-/GND (Optional)
Features:-
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 ℃