The pulse sensor is plug and plays sensor to check the heart rate. Using this pulse sensor we can count the heart rate. It’s easy to use and noticeably faster and easier to get reliable pulse readings. It works on 3V or 5V.It can be used by students, artists, makers, and developers who want live heart-rate data into their projects.
When a heartbeat occurs blood is pumped through the human body and gets squeezed into capillary tissues. The volume of these capillary tissues increases as a result of the heartbeat. But in between the heartbeats( time between two consecutive heartbeats), this volume inside capillary tissues decreases. This change in volume between the heartbeats affects the amount of light that will transmit through these tissues. This change is very small but we can measure it easily.
This module has a light which helps in measuring the pulse rate or heart rate. When we place the finger on that sensor, the light reflected will change based on the volume of blood inside the capillary blood vessels. During a heartbeat, the volume of capillary blood vessels will be high. This affects the reflection of light and the light reflected at the time of a heartbeat will be less compared to that of the time during which there is no heartbeat. This variation in light transmission and reflection can be obtained as a pulse from the output of pulse sensor.
WHAT IT INVOLVES IN ITS KIT?
1) Soft braided-wire ribbon cable. Not kidding, that’s one nice cable! 2) An Ear Clip that’s perfectly sized for the sensor. 3) A Velcro Finger Strap, just like the pro.
USE OF IT:
We can use this sensor in medical instruments and health-based application. And also This can be used as a on the go heart rate sensor.
- Operating Voltage : 3V – 5V
- Current : 4mA
- Indicator LED
- Pulse Sensor
- Arduino Board
- Jumper Wires
Connection With Arduino: