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 ...

How fast does your heart beat? It’s a tough question to answer, because our heart rate changes all the time depending on what we’re doing and how our body is behaving. However, ...

The Geek Pub guide will help get you started with an Arduino pulse sensor. While sensors like this are reliable, it's worth keeping in mind that your heart rate can tell you a lot of different things.

If you would prefer to build your very own DIY heart rate monitor, rather than purchase an expensive smartwatch or fitness tracker. You may be interested in a project published to the Hackster.io ...

While Bluetooth heart rate monitors can meet the needs of most people—pairing the monitor with a smartwatch, say—ANT+ allows you to connect the heart monitor to multiple devices at once.

Chest straps and optical heart-rate monitors are the two most common types of pulse trackers available for modern wearables, and they both use similar methods to measure your pulse.

Swimmers and triathletes also use them in tandem with their triathlon watches for the same reason. Our current favourite heart rate monitor is the ever-so-wonderful Garmin HRM Pro Plus.

Though it was accurate at resting pulse rates, it couldn't keep up with Profis's heart rate when exercising. Basis Carbon Steel and Samsung Gear Fit are both wrist bands with built-in optical sensors.

More wrist-based heart rate monitors are hitting the market, letting you gauge your fitness with a quick read of your pulse. But as Sharon Profis discovered after a visit to the doctor, these ...