Learn how to create a simple heart rate monitor using an Arduino Pro Mini, PulseSensor, and OLED display. This ...

The device itself folded up like a laptop, and on the two surfaces had four IR LED/sensor pairs. ... which gets its instructions from an Arduino Nano and an A4988 motor driver.

The sensor is intended as an alternative to pyroelectric sensors or PIR detectors in home automation, building automation, healthcare, security and industrial applications. Typically human presence ...