Why isn’t the signal uselessly noisy? This project is in good company with other neat heart rate measurement tricks we’ve seen.

Understanding what a healthy resting heart rate looks like and why it matters can empower us to take proactive steps towards a healthier future.

Since the Arduino module has USB support built-in, you can create Etch-A-Sketches, Pong games and other programs that have LittleBits and your PC working in harmony.

The tiny Arduino development board has been combined with a generic nRF24 Module together with a Adafruit NeoPixel Ring, to provide visual feedback on your heart rate.