![[TC] Heart rate monitor using 8051](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg9VKm42ZxC5N7qDj-V-7z9qNQAuaxP5MaIA5ir1sukP78395GnUm1Z3QBpTQvx5sRgHEt-JO6RvrIhjXTfl75nQ8bLsPXQV8JxOcQvM9hg2VMLqi7i1VNy6XgY3DVg4dv5_tkMLYrJwNej/s200-c/heart-rate-monitor-using-8051.png)
This article is about a simple heart rate monitor using 8051 microcontroller. Like the previous 8051 projects, AT89S51 is the microcontroller used here. The device senses the heart rate from the finger tip using IR reflection method and displays it on a three digit seven segment display in beats per minute. The circuit has an accuracy of 4 beats per minute and it is very easy to use. In medical...
