Template: Capacitive Fingerprint Reader B PC Guide

Hardware Connection

• Connect the Reader to the PCBA as the picture showed:

• After getting the module, you can use the test software or test program to test the module first. After having a certain understanding of the module, you can use the instruction sheet for secondary development.
• The module can be controlled through the UART serial port or through the Type-C interface on the main control board.
• Connect the Fingerprint Reader to PC.
  • If you want to use the USB interface, connect the type-C interface of the Fingerprint Reader to the PC by Type-C USB cable.
  • If you want to use the UART interface, you need to buy a USB to UART adapter separately first. Connect the Fingerprint Reader to the adapter and then connect the adapter to PC by USB cable.

• 

  Connect to USB

• 

  Connect to UART

• Open the Capacitive-Fingerprint-Reader-(B)-Demo software (download from the Resources).
  • If you connect the Fingerprint Reader by USB cable, choose Con Mode -> USB and then click Connect to connect the device
  • If you use to connect the Fingerprint Reader by UART adapter, choose Con Mode -> Serial, then set the correct COMPort, and Baudrate set to 115200, and then click Connect to connect the device.

• 

  Connect to USB

• 

  Connect to UART

About the Software

• 

  Configuration

• 

  Add fingerprint

• 

  Verify fingerprint (with finger)-Verify 1:1

• 

  Verify fingerprint (with finger)-Verify 1:N

1. Configuration

• Param Type: This option can be used to configure some parameters of the fingerprint reader.
  • Device ID: Set the device ID of the fingerprint reader in the range of 1 ~ 255.
  • Security level: Set the security level in the range 1 ~ 5, the higher the level, the smaller the FAR, and the higher the FRR.
  • Duplication Check: Enable/Disable the duplication check function (1 or 0).
  • Baudrate: Set the baud rate of the serial port.
  • Auto Learn: Enable/Disable the Auto learn function (1 or 0).
• Param Value: Show or Edit the value according to the Param Type.
• Set Param: Click this button to configure the module.
• Get Param: Click this button to get the parameter value relates to the Typ.

2. Add fingerprint

• Input the ID, it is the ID of the fingerprint.
• Choose the Enroll Count, it is the times that you need to input the fingerprint image, default 3.
• Click the Enroll button to add a fingerprint.
• Put your finger on the reader three times (according to the Enroll Count).

Note that the fingerprint can only be added successfully when the success information is printed. If you get the failed information, you need to try it again.

3. Verify fingerprint (with finger)

There are two methods of verifying fingerprints with fingers.

Verify 1:1: Verify the finger with ID, it will verify the finger input with a fingerprint which was saved in the module with the ID.

• Set the ID.
• Click the Verify button.
• Put your finger on the sensor to verify.

Verify 1:N: Verify the finger with all the fingerprints, it will verify the finger input with all the fingerprints which were saved in the module.

• Click the Identify button.
• Put your finger on the sensor to verify.
• It will keep verifying, if you want to exit the verifying mode, just click the Stop button.

For more details about the software, please check the Software Reference Manual from Resources.

Notices

This is a capacitive fingerprint reader, you just need to put your finger on the sensor softly.

Correct

Wrong

Sensor Dimensions