Example Code for Raspberry Pi - Get Heart Rate and Blood Oxygen Data

Hardware Preparation

• Raspberry Pi 4B (or similar) x1
• Heart Rate and Oximeter Sensor V2 module (compatible with Raspberry Pi) x1
• M-M/F-M/F-F Jumper wires

Software Preparation

• Heart Rate Sensor Python Library
• RASPBIAN Raspberry Pi Official Operating System

Wiring Diagram

• Connect the module to Raspberry Pi according to the connection diagram. The default I2C address is 0x68.

Driver Installation

1. Enable the I2C interface of Raspberry Pi, if enabled, skip this step. Open terminal, type the following command, and press Enter:
   pi@raspberrypi:~ $ sudo raspi-config
   Select "5 Interfacing Options" and press Enter. Select "P5 I2C" and press Enter to confirm "YES". Restart the Raspberry Pi master control.

2. Install Python dependencies with git, and Raspberry Pi needs to be connected to the Internet. If done, skip this step. In the terminal, type the following commands and press Enter:
   pi@raspberrypi:~ $ sudo apt-get update pi@raspberrypi:~ $ sudo apt-get install build-essential python-dev python-smbus git

3. Download the BloodOxygen driver libraries. In the terminal, type the following commands and press Enter:
   pi@raspberrypi:~ $ cd Desktop/
pi@raspberrypi:~/Desktop $ git clonehttps://github.com/DFRobot/DFRobot_BloodOxygen_S

Sample Code

In the terminal, type the following command and press Enter to run the sample code:
pi@raspberrypi:~/Desktop $ cd DFRobot_BloodOxygen_S/python/raspberry/example/gain_heartbeat_SPO2/ pi@raspberrypi:~/Desktop/DFRobot_BloodOxygen_S/python/raspberry/example/gain_heartbeat_SPO2/ $ python gain_heartbeat_SPO2.py

Result