R557 3.3V Capacitive Fingerprint Sensor Scanner 160*160 pixel Small Round
R557 capacitive fingerprint module integrates fingerprint algorithm chip, image pixel: 160*160 pixel;
It has the functions of fingerprint entry, image processing, fingerprint storage, fingerprint comparison (1:1) or fingerprint search (1:N).
Products include: 1 R557 fingerprint module, 1 6-core connecting short wire, and the interface spacing is 1.0mm
technical parameter:
Supply voltage: DC 3.3V
Supply current:
Working current: 30mA (typ.)
Peak current: 40mA
Fingerprint image entry time: <0.3 seconds
Collection window area: 12.8mm in diameter
Image pixel: 160*160 pixel
Image Resolution: 508dpi
Match method:
Comparison method (1:1)
Search method (1:N)
Storage capacity: 120 pieces
Security level: five (from low to high: 1, 2, 3, 4, 5)
False Recognition Rate (FAR): <0.0001%
Authentic rejection rate (FRR): <1.0%
Search time: <0.3 seconds (1:1000, average)
Host computer interface: RS232 (TTL logic level, 3.3V)
Communication baud rate: (9600?N)bps where N=1~12 (default value N=6, ie 57600bps)
working environment:
Temperature: -20?-+45?
Relative humidity: 10%RH-85%RH (non-condensing)
The schematic diagram of the circuit is as follows: the interface is MX1.0-6P
In addition: Pins 5 and 6 are used in battery-powered applications. The touch sensing power supply is DC 3.3V-5V, and the current is about 5uA. It must be powered normally. When there is a finger, the sensor outputs a low level to wake up the microcontroller and send it to the fingerprint module. electricity, so as to achieve the purpose of saving electricity.
Wiring
1 VT Finger detection
2 Out IRQ
3 VCC 3.3
4 TX 3.3 Logic lvel
5 RX 3.3 Logic lvel
6 GND
User manual: https://www.dropbox.com/sh/epucei8lmoz7xpp/AAAmon04b1DiSOeh1q4nAhzAa?dl=0&preview=R557+fingerprint+module+user+manual.pdf