mikroe_fingerprint2_a172mrq

A-172-MRQ - Fingerprint 2 Click (Mikroe)

Summary

This example project shows an example for Mikroe Fingerprint 2 Click board driver integration with Silicon Labs Platform.

The Mikroe Fingerprint 2 Click board is a fingerprint sensor module that allows for easy integration of fingerprint recognition functionality into a wide range of projects. It uses a high-quality A-172-MRQ fingerprint sensor that can quickly and accurately capture and compare fingerprints. The board includes an onboard microcontroller that handles all of the necessary processing, and it communicates with the host controller through an easy-to-use UART interface.

The board also includes some features such as the ability to store and match up to 24 fingerprints. It also includes two onboard LEDs to indicate the status of the sensor. This Click board can be used in various projects like security systems, attendance systems, access control etc and is a cost-effective solution for adding fingerprint recognition to your project.

Required Hardware

• EFR32xG24-EK2703A EFR32xG24 Explorer Kit (BRD2703A xG24 Explorer Kit Board)
• Or SiWx917 Wi-Fi 6 and Bluetooth LE 8 MB Flash SoC Pro Kit (BRD4002 + BRD4338A)
• Fingerprint 2 Click board based on A-172-MRQ

Hardware Connection

• If the EFR32xG24 Explorer Kit is used:

  The Fingerprint 2 Click board supports MikroBus, so it can connect easily to the Explorer Kit via MikroBus header. Assure that the 45-degree corner of Click board matches the 45-degree white line of the Explorer Kit.

  The hardware connection is shown in the image below:

  

• If the SiWx917 Wi-Fi 6 and Bluetooth LE 8 MB Flash SoC Pro Kit is used:

  Description	BRD4338A GPIO	BRD4002 Breakout Pad	Fingerprint 2 click
  UART1_RX_PIN	GPIO_6	P19	TX
  UART1_TX_PIN	GPIO_7	P20	RX
  RESET	GPIO_46	P24	RST
  Compare indicator	GPIO_47	P26	LD1
  Compare indicator	GPIO_48	P28	LD2
  General Purpose	GPIO_49	P30	GP1
  General Purpose	GPIO_50	P32	GP2

Setup

You can either create a project based on an example project or start with an empty example project.

Create a project based on an example project

1. From the Launcher Home, add your device to My Products, click on it, and click on the EXAMPLE PROJECTS & DEMOS tab. Find the example project filtering by fingerprint.

2. Click Create button on the Third Party Hardware Drivers - A-172-MRQ - Fingerprint 2 Click (Mikroe) example. Example project creation dialog pops up -> click Create and Finish and Project should be generated.

   

3. Build and flash this example to the board.

Start with an empty example project

1. Create an "Empty C Project" for your board using Simplicity Studio v5. Use the default project settings.

2. Copy the file app/example/mikroe_fingerprint2_a172mrq/app.c into the project root folder (overwriting existing file).

3. Install the software components:

   • Open the .slcp file in the project.

   • Select the SOFTWARE COMPONENTS tab.

   • Install the following components:

     If the EFR32xG24 Explorer Kit is used:

     • [Services] → [Timers] → [Sleep Timer]
     • [Services] → [IO Stream] → [IO Stream: EUSART] → default instance name: vcom
     • [Services] → [IO Stream] → [IO Stream: USART] → default instance name: mikroe
     • [Third Party Hardware Drivers] → [Human Machine Interface] → [A-172-MRQ - Fingerprint 2 Click (Mikroe)] → use default configuration
     • [Application] → [Utility] → [Assert]
     • [Application] → [Utility] → [Log]

     If the SiWx917 Wi-Fi 6 and Bluetooth LE 8 MB Flash SoC Pro Kit is used:

     • [WiSeConnect 3 SDK] → [Device] → [Si91x] → [MCU] → [Service] → [Sleep Timer for Si91x]
     • [Third Party Hardware Drivers] → [Sensors] → [MM5D91-00 - Radar Click (Mikroe)] → use default configuration
     • [WiSeConnect 3 SDK] → [Device] → [Si91x] → [MCU] → [Peripheral] → [UART] → disable "UART1 DMA"

4. Build and flash this example to the board.

Note :

• Make sure that the Third Party Hardware Drivers extension is installed. If not, follow this documentation.

• SDK Extension must be enabled for the project to install "A-172-MRQ - Fingerprint 2 Click (Mikroe)" component.

How It Works

Driver Layer Diagram

Testing

The example compares a fingerprint on input to the registered fingerprint and shows a message on the console screen on which input fingerprint is identified or on which input fingerprint is not identified.

You can launch Console that's integrated into Simplicity Studio or use a third-party terminal tool like TeraTerm to receive the data from the USB. A screenshot of the console output is shown in the figure below.

Report Bugs & Get Support

To report bugs in the Application Examples projects, please create a new "Issue" in the "Issues" section of third_party_hw_drivers_extension repo. Please reference the board, project, and source files associated with the bug, and reference line numbers. If you are proposing a fix, also include information on the proposed fix. Since these examples are provided as-is, there is no guarantee that these examples will be updated to fix these issues.

Questions and comments related to these examples should be made by creating a new "Issue" in the "Issues" section of third_party_hw_drivers_extension repo.