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
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 |
Package List
Wiki/User manual