USB-Fingerprint

USB Fingerprint

USB Fingerprint board is a board comprise of an onboard Nuvoton MCU with an on-chip crypto-accelerator, Cortex-M23 TrustZone, and XOM facilities in a USB form-factor. A user can use the USB Fingerprint board with a PC or micro-controller with the Baud rate of 9600 bps or USB 2.0 full speed over the serial UART interface.

Features

• USB / UART Interface
• Capacitive Contact Technology
• On Chip-Crypto Accelerator
• High-Speed UART Interface
• Register up to 24 Fingerprints
• Nuvoton MCU
• Cortex-M23 Trust zone
• High-performance fingerprint algorithm
• Register at most 24 fingerprints
• High comparison speed
• Matching mode 1:1; 1:N

Specifications

• Sensor - Capacitive Chip Sensor
• Active sensing area - 8.8 x 8.8 mm
• Scanning speed - 25 Frame/ sec
• Image resolution - 508dpi
• Gray level - 8 bits/pixel, max 256 grayscales
• Image ratio to width - 1:1
• Operating Temperature - (20 ~ 60 ℃)
• Operating humidity - 0 ~ 90% Non-Condense
• Matching Mode - 1:1; 1:N
• Sensor Coating surface color - Black Matte

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Installation

Raspberry Pi

• Enable Serial Interface for Raspberry Pi (Not required in case of windows)
• Open a terminal and run the following commands to enable I2C and Serial：

sudo raspi-config

• Choose Interfacing Options -> Serial->

Set "would you like a login shell to be accessible over serial?" --> No

Set "would you like the serial port hardware to be enabled?" --> Yes

• Install required dependency by running the below command

sudo apt-get install python3-pil python3-pil.imagetk

• Connect usb fingerprint on raspberry Pi usb port.
• Now open terminal and run the below command to download/ clone usb fingerprint repository

git clone https://github.com/sbcshop/USB-Fingerprint.git

(It will clone the repository inside home/pi location.)

• Enter downloaded repository location by typing below command.

cd USB-Fingerprint

• Now start the GUI of USB fingerprint by running the below command.

python3 fingerprint_GUI.py

• Type COM port and Baud Rate as ( default is 9600) from above GUI ("/dev/ttyACM0" in case of default connection), and click on connect button to start communication with fingerprint sensor.

Note: In case of error while opening the COM port run the below command to check connected devices on USB port.(connect and remove to check it)

ls -l /dev/tty*

GUI Features

• Compare Fingerprint - Option to Compare registered Fingerprint.
• Add Fingerprint - Add New Fingerprint, will assign an ID for each successful registration.
• Remove Fingerprint ( By ID) - Remove registered Fingerprint for a specific ID.
• Remove All Fingerprint (Registered) - Remove all saved fingerprints in a single click.

Resources

Github

• Source Code