fingerprint4
2.1.0.0
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We provide a library for the Fingerprint 4 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.
Package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.
This library contains API for Fingerprint 4 Click driver.
fingerprint4_cfg_setup
Config Object Initialization function. fingerprint4_init
Initialization function. fingerprint4_version
This function reads out version information from the device. The response contains a variable length string that contains version information of the device. fingerprint4_identify_finger
This function captures and identifies finger against existing templates in Flash storage. fingerprint4_wait_finger_not_present
This function waits until no finger is detected on the sensor. This example demonstrates the use of the Fingerprint 4 click boards by registering 3 fingerprints and
then waiting until a finger is detected on the sensor and identifying if the fingerprint matches one of those stored in the Flash storage.
The demo application is composed of two sections :
Initializes the driver and reads the sensor firmware version, then resets the sensor and removes all
stored fingerprint templates. After that it registers 3 new fingerprint templates and stores them in the Flash storage.
Waits until a finger is detected on the sensor, takes an image of the finger and checks if there's
a fingerprint in the library that matches the one it has just read. If it finds a match, a fingerprint template ID will be displayed. All data is being logged on the USB UART where you can track the program flow.
The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.
Other Mikroe Libraries used in the example:
Additional notes and informations
Depending on the development board you are using, you may need USB UART click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. UART terminal is available in all MikroElektronika compilers.