NXP Application Code Hub

FRDM-RW612 Heart Rate sensor over BLE

This demo shows how to use the Heart Rate 4 Click with the RW612-FRDM board over BLE. 
The sensor data is sent to a wireless UART through the IoT Toolbox App.

Boards: FRDM-RW612

Categories: Sensor, Wireless Connectivity

Peripherals: I2C

Toolchains: MCUXpresso IDE

Table of Contents

1. Software
2. Hardware
3. Setup
4. Results
5. FAQs
6. Support
7. Release Notes

1. Software

• MCUXpresso IDE v11.7.1 or newer
• FRDM-RW612 SDK (SDK_2_16_0_FRDM-RW612)
• FRDM-RW612 Wireless Hear Rate Demo project
• IoT Toolbox app

2. Hardware

HEART RATE 4 CLICK (MAX30101)

HEART RATE 4 CLICK configuration:

No special configuration required simply connect into the FRDM-RW612 mikroBUS header, use the GND pins as reference.

FRDM RW612 Board

3. Setup

The BLE Firmware is flashed together with the application since it has the monolithic configuration.

Connect the heart rate 4 click board in the mikroBUS header of the FRDM-RW612 Board

Connect the FRDM-RW612 board with a USB C cable on the MCU Link Connector to your computer

IoT Toolbox app

On your phone download the IoT Toolbox app

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How to run:

1. Use MCUXpresso IDE to flash the application.
   
2. Open the IoT Toolbox app on your phone.
3. Run the demo.
4. on the IoT Toolbox app select "Wireless UART"
5. Connect to "WU_HeartRate_Sensor"
6. Put your finger on the sensor and wait a couple seconds, data will appear periodically on the app as your heart rate changes.

4. Results

Once the demo is running properly and you setup your phone with bluetooth and the IoT Toolbox app on the right Wireless UART you should see the following screen:

Demo Video:

5. FAQs

No FAQs have been identified for this project.

6. Support

Project Metadata

Questions regarding the content/correctness of this example can be entered as Issues within this GitHub repository.

Warning: For more general technical questions regarding NXP Microcontrollers and the difference in expected functionality, enter your questions on the NXP Community Forum

7. Release Notes

Version	Description / Update	Date
1.0	Initial release on Application Code Hub	May 16th 2025

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