Heart Rtae Measurement using Fingertip

Abstract

This project describes the design of a simple, low-cost microcontroller based heart rate measuring device which shows an LCD output. Heart rate measurement is one of the most important part of the human cardiovascular system. The average heart rate of a healthy person at rest is around 72 beats per minute (bpm). Heart rate measurement is an important diagnostic tool because it reflects the state of mind and physical condition of a particular person. So, I am trying to make a project which will be an indication of how healthy the body is, by measuring and monitoring the heart beat. The objective of the project is to develop heart rate monitor and then interface it with the computer system for measuring the heartbeat using finger using microcontroller and optical sensors. Heart rate is measured from the finger by placing the thumb in between the LDR and LED and the rate is then averaged and displayed on a text based LCD.