1. The heart rate sensor is used to test the heart rate sensor.
2. It has an optical heart rate sensor amplifier and noise canceling circuit.
3. The sensor can be worn on the finger or earlobe, easy to use.
4. It can be connected to the Arduino line through the internet.
5. Widely used by students, artists, athletes, creators, game developers or mobile terminals, can develop interactive and heart-related works.
