Finger Print Sensor R307 (New R305):
This is R307 Optical Fingerprint Reader Sensor Module. R307 fingerprint module is fingerprint sensor
with 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.
Perfect function: independent fingerprint collection, fingerprint registration,
fingerprint comparison (1: 1) and fingerprint search (1: N) function.
Small size: small size, no external DSP chip algorithm, has been integrated, easy to install, less fault.
Ultra-low power consumption: low power consumption of the product as a whole, suitable for low-power
requirements of the occasion.
Anti-static ability: a strong anti-static ability, anti-static index reached 15KV above.
Application development is simple: developers can provide control instructions, self-fingerprint application product development, without the need for professional knowledge of fingerprinting.
Adjustable security level: suitable for different applications, security levels can be set by the user to adjust.
Finger touch sensing signal output, low effective, sensing circuit standby current is very low, less than 5uA.
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 .
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: 14×18 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)
3.3VDC power may be selected to supply when short ciucuit as the following drawing.
Caution: Operating carefully, and R307 will be damaged when wong connection.
1 x R307 Optical Fingerprint Reader Sensor Module
1 x Connecting Cable(6-pin)
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