Adding two OLED displays to your Arduino logger (without a library)

Oceanographic instruments rarely have displays, because they don't contribute much to profilers being lowered off the side of a boat on long cables. And most of our instruments spend months-to-years in underground darkness, far from any observer.  But a few years ago we built a hand-held flow sensor that needed to provide operator feedback while…

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Adding two OLED displays to your Arduino logger (without a library)

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