A rolling average of five inputs are used to help smooth the display data, which is shown on the 2.8″ LCD screen seen above. Posted in Arduino Hacks Tagged chest strap , heartrate , monitor , polar ...

Internally his heart rate monitor is using an Arduino Pro Mini, a small OLED screen, and a turn-key pulse sensor which was originally conceived as a Kickstarter in 2011 by “World Famous ...

You may be interested in a project published to the Hackster.io website earlier this year providing instructions on how to create a simple wearable heart rate monitor using an Arduino Nano R3.