Heart Rate Monitor -

Wearable monitors can help detect irregularities like Atrial Fibrillation (AFib) or tachycardia (a resting rate over 100 bpm).

Commonly found in smartwatches

For those interested in electronics, building a heart rate monitor is a popular beginner-to-intermediate project. Enthusiasts often use an Arduino paired with a pulse sensor to display live data on an LED screen or serial monitor. Some even utilize smartphone cameras and flashes as makeshift optical sensors to extract pulse data through Python processing. heart rate monitor

Athletes use heart rate data to stay within specific "zones" (e.g., aerobic vs. anaerobic) to optimize fat burning or cardiovascular endurance. Wearable monitors can help detect irregularities like Atrial

and fitness trackers, these sensors use green LED lights to illuminate the blood vessels in your wrist. By measuring the changes in light absorption as blood pulses through, the device calculates your heart rate. Some even utilize smartphone cameras and flashes as

Often found in chest straps like the Garmin HRM-Pro Go to product viewer dialog for this item.

A heart rate monitor is a personal monitoring device that allows one to measure and track their heart rate in real time or for later study. Originally designed for medical use, these devices are now staple tools for athletes, fitness enthusiasts, and individuals tracking general health. How Heart Rate Monitors Work