Arduino Nitrox Analyzer for the Submarine Hacker

For Hackaday readers who don’t spend their free time underwater, nitrox is a blend of nitrogen and oxygen that’s popular with scuba divers. Compared to atmospheric air, nitrox has a higher concentration of oxygen; which not only allows divers to spend more time underwater but also reduces the risk of decompression sickness. Of course when fiddling with the ratio of gases you breathe there’s a not inconsequential risk of dying, so nitrox diving requires special training and equipment to make sure the gas mixture is correct.

Divers can verify the ratio of oxygen to nitrogen in their nitrox tanks with …read more

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Back to Basics: Let’s Forget About the GDPR… For A Moment

At this point it’s fairly safe to assume that most everyone in the business of “data” has heard of the European Union (EU)-wide General Data Protection Regulation (GDPR) that was signed into law in late April 2016; with the compliance… Continue reading Back to Basics: Let’s Forget About the GDPR… For A Moment

DIY Pressure Regulator for Exciting SCUBA

To get a SCUBA certification, a prospective diver will need to find a dive shop and take a class. Afterwards, some expensive rental equipment is in order. That is, unless you’re [biketool] who has found a way to build some of his own equipment. If you’re looking for a little bit of excitement on your next dive, this second stage regulator build might be just the thing for you.

It’s worth noting that [biketool] makes it explicitly clear that this shouldn’t be used on any living being just yet. The current test, though, was at 120 PSI using some soda …read more

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