Description

This fingerprint module can store 300 fingerprints and has the functions of collecting fingerprints, reading fingerprints, and identifying fingerprints. It is not only small in size, low in power consumption, simple in interface, high in reliability, and also has fast recognition speed and good adaptability to wet and dry fingers.

When the fingerprint image is read, it has a sensitive response and judgment to dry and wet fingers and obtains the best imaging quality, which is suitable for a wide range of people. At the same time, it has the function of self-learning, which can achieve better matching. The module also has the function of sensing the finger. When the finger is pressed on the fingerprint collection surface, the module Touch pin outputs a high level. The module communication interface is UART communication interface.

Feature

Compact size and simple structure
Low power consumption, simple interface, high reliability
Fast recognition speed, good adaptability to wet and dry fingers, and fast fingerprint search

Specification

PARAMETER	VALUE
Sensor	Capacitive touch sensor
Resolution	508 DPI
Image pixels	160*160
Fingerprint image collection time	<110ms
Fingerprint capacity	300
Algorithmic search time	<30ms(100pcs)
Matching method	1:1,1:N
Overall recognition time	<1s(100pcs)
False acceptance rate	<0.001%
False rejection rate	<1%
Operating voltage	3.3±0.3（v）
Operating current	<55mA
Communication port	UART

6 Pin Interface Definition
Pin Number	Name	Type	Function description
1	Vsen	In	Fingerprint sensor power input, +3.3V
2	Touch	Out	Fingerprint sensor touch sensing signal output, active high by default
3	VDD	In	Module DSP power positive input, +3.3V
4	TX	Out	Serial data output, TTL logic level
5	RX	In	Serial data input, TTL logic level
6	GND	-	Signal ground, internally connected to power ground