Fingerprint Reader Optical Fingerprint Recognition Module for PC Laptop for Access Control System Security Box Item Type: Fingerprint Reader Material: ABS CPU: 120MHz Main Frequency, 1M Bits Flash Memory, 128KB SRAM Fingerprint Collector: Optical Collection Fingerprint Image Size: 640x480 PX, 508 DPI Fingerprint Registration Capacity: Default 1000 Pieces, Expandable 5000 Pieces False Acceptance Rate (FAR): < 0.001 % (Security Level 3) Rejection Rate (FRR): < 0.1 % (Security Level 3) Matching Method: (1: N) And (1:1) Matching Fingerprint Template Size: 570 Bytes Security Level Setting: Level 1 To Level 5 Can Be Set, Factory Setting Value: Level 3 Fingerprint Feature Extraction Time: < 0.45 Seconds (1:N) Matching Time (3000 Full Registrations): < 1.5 Seconds Communication Interface: UART, 3.3V TTL Level Serial Communication Parameters: Parity = None, Stop Bit = 1 Flow Control = None Baud Rate: 9600, 19200, 38400, 57600, 115200 (bps) Factory Setting: 115200bps Operating Current: Less Than 100mA Interface Definition: RST: Make The Module Reset, Low Level Valid (This Pin Needs To Be Used Under Uninterrupted Power Supply To The Module, In Other Cases It Is Recommended To Suspend The Processing) VIN: Fingerprint Module Main Power Supply, Default 3.3V GND: Power Ground RX DP: Module Receive Data Pins TTX DN: Module Send Data Pins +3.3V: Finger Detection Function Circuit Power Supply Wakeup: Finger Detection Function Output Pin, Output High When A Finger Is Pressed On Note: 1. communication process in addition to the FP Cancel instruction, other instructions sent, received must follow the principle of one send and one receive, two instructions sent interval time required greater than or equal to 20ms, less than this time may lead to the later instructions do not respond. 2. From the module Target to Host in the transmission of more than 24byte data, the use of response data packet (Response data packet). 3. Host should not send commands to TARGET when no answer is received. 4. The module indicator does not need to be controlled by default, it will automatically turn on the collector indicator when processing the command, if the correct fingerprint is collected, the indicator will be turned off automatically; if the correct fingerprint is not collected, the collector indicator will be on all the time. You can also use the Sensor LED Control command to turn on or off the collector light according to your needs. 5. The device has password protection mode. After the device password is set, most of the commands cannot be used if the device is not confirmed by the password. If no password is set for the device, all commands can be used without password confirmation. 6. The module automatically enters into initialization when it is powered on, which takes about 300ms. It is recommended to wait for 350ms after powering on the module and then send commands to the module. 7. The module has an automatic finger detection function, that is, when a finger is pressed on the fingerprint collector in low power mode, the Wakeup pin of the module will output a high level. The specific operation is as follows. The +3.3V of the module should be kept powered all the time and cannot be disconnected. When low power consumption is needed, disconnect the VIN power supply, then when a finger touches the fingerprint collector glass, the WKP pin of the module will output high level, take it away and turn back to low level. After WKP output high level is detected, when the fingerprint module needs to work, turn on the VIN power and wait for 350ms and then send the command to the module.