In this video I'm building an Arduino Heart Rate Monitor that is housed in a toy handle in the style of the Star Trek Tricoder. The device uses the PulseSensor with an Arduino Pro Mini and an OLED ...
Light aircraft often use a heading indicator as a way to know where they’re going. Retired instrumentation engineer [Don Welch] recreated a heading indicator of his own, using cheap ...
Abstract: Photoplethysmography (PPG) is a key technology allowing non-invasive monitoring of vital indicators such as heart rate (HR) and oxygen saturation (SpO 2). Today, the total PPG sensor power ...