He wanted to do a little more with the equipment so he ditched the watch and built an Arduino-based heart rate monitor. He’s still using the chest strap and was happy to find that SparkFun sells ...

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.

Here’s a good one, showing you how to build a heart rate monitor using a Genuino 101 with Bluetooth comms. The project takes advantage of the Bluetooth Smart comms (aka Bluetooth Low-energy) built ...

This article gives a glimpse of what a heart rate monitor is and why it’s needed. Next, the design considerations of a simple hand held heart rate monitor are discussed. Finally, it is shown how to ...

Heart-rate monitors, body-worn fitness trackers, and smart scales are just a few of the options to measure and monitor personal fitness both during exercise and daily activity.

How they work The science behind optical heart-rate monitors is something called photoplethysmography (PPG): the measurement of artery volume using light.