ARDUINO HEART RATE MONITOR HAS STAR TREK CHIC

Building a real-life version of the Star Trek tricorder has been the goal of engineers and hackers alike since the first time Dr McCoy complained about being asked to work outside of his job description. But while modern technology has delivered gadgets remarkably similar in function, we’ve still got a long way to go before we replicate 24th century Starfleet design aesthetic. Luckily there’s a whole world ...

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Measuring Heart Rate With A Piezo

While trying to create a circuit that detects whether water is flowing through a pipe by measuring the vibration with a piezoelectric sensor, just to see what happens I taped the sensor around my finger and - to my surprise - got values that were a very noise-free representation of my heart rate! This is even easier than using LEDs as it only requires a piezoelectric sensor and an Arduino. (and a piece of t ...

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