HOW TO - Make a sound level indicator
Here’s how to build a pretty neat looking sound meter, I just bought some ear projection that is rated for 30db, so this might be fun to test if they really work with a visual indicator…
via [Make]
Max, “Hmmm, what if I could build a sound level detector and hook it up to my GPRS modem…
This seems very interesting…”
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the bar looks cooler