Every time I fly and have to drop off my luggage at the check-in counter, I wonder what goes inside it during the trip. Is it stored in a cold location? At high altitudes, external plane temp can reach -30F. Is my stuff exposed to that extreme weather? Does it gets opened when I’m not around? As […]
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If you are looking for a dtmf decoder, your best option is to use a dtmf decoder ic instead of trying to write up software. Using software in your microcontroller-based project (Arduino or other) to decode dtmf signals to me is like reinventing the wheel. For sure the software approach is a “free”solution, since you’re […]
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I bought a spare phone charger on eBay several months ago, and I always wondered if that charger was a genuine product or a counterfeit. Looking at it there’s no way of telling. The eBay purchased charger has all the labels just like the original. I then figured that a way to confirm the charger […]
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