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Waterproofing iButtons, and reading waterproofed iButtons

iButton temperature dataloggers are tiny, long-lived temperature sensors that are great for all kinds of environmental and biological monitoring, but they’re a long ways from waterproof. Old farts will regale you with tales of a bygone era when you could leave a bare iButton submerged in seawater for months at a time without problems, but those days are long gone, due to a re-design in the early 2000’s. Nowadays you can’t even get away with leaving them in moist soil without eventual water intrusion, component failure, and data loss. But given their tiny size and relatively low price … Continue Reading