Heartbeat/Pulse/Bpm Rate Moniter


When it comes to our heart rate, of course,we don’t want it to beat too fast, and to beat too slow. But, most of the time, we don’t really think about the rhythm and pace of our heart. And if there is something unusual happening in our heart, we are really completely unaware of it.
In this tutorial we made a simple Heart Rate Monitoring System that monitors the rate of your heart and also the Beats Per Minute.

How Pulse Sensor Works

The working of the Pulse/Heart beat sensor is very simple. The sensor has two sides, on one side the LED is placed along with an ambient light sensor and on the other side we have some circuitry. This circuitry is responsible for the amplification and noise cancellation work. The LED on the front side of the sensor is placed over a vein in our human body. This can either be your Finger tip or you ear tips, but it should be placed directly on top of a vein.
Now the LED emits light which will fall on the vein directly. The veins will have blood flow inside them only when the heart is pumping, so if we monitor the flow of blood we can monitor the heart beats as well.  If the flow of blood is detected then the ambient light sensor will pick up more light since they will be reflect ted by the blood, this minor change in received light is analysed over time to determine our heart beats.




There are so many different kinds of sensors whose purpose is to detect events or changes in it’s environment. And because of that we are able to generate new ideas in making technologies that helps us solve real life problems. For example the pulse sensor that allows us to read live heart-rate data, because of this type of sensor we are able to create a project that monitor or checks our heart rate.