Ard uino pulse sensor is used to test the heart rate sensor, students, artists, athletes, creators, games or mobile terminal developers can develop heart-related and interactive works. Sensor can be worn on the finger or earlobe, can be connected with Ard uino line via the Internet. It also has an open-source app program, you can put your heart rate in real time displayed by the graph. Essence is an integrated optical heart rate sensor amplifier and noise elimination circuit.

   3V or 5V power supply