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 ... for the sensor itself, so ...

[Petteri Hyvärinen] is successfully investigating the use of capacitive touchscreens for heart rate sensing among other applications. The capacitive sensor ... is sent via an Arduino in 35 ...

And the Touch Board from Bare Conductive wants you to combine your DIY spirit with the ability to turn practically any surface into a sensor. At the heart is an Arduino compatible microcontroller ...

Put your finger on the heart rate sensor in the base, and an Arduino Nano actuates a single servo to your own personal beat. We’d love to see it work overtime while someone gets worked up.