Simple DIY ECG + Pulse Oximeter (version 2)

Of the hundreds of projects I’ve shared over the years, none has attracted more attention than my DIY ECG machine on the cheap posted almost 4 years ago. This weekend I re-visited the project and made something I’m excited to share!  The original project was immensely popular, my first featured article on Hack-A-Day, and today “ECG” […]

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