Johnny Schemaddict wrote:
follow up:
I pulled out the non functioning LED, saw that there was a flattened indication on the lens, and confirmed that I had installed it with reverse polarity, so I soldered it back in place with the correct orientation and it works just fine.
I had assumed the leads were to short to work with but was able to assemble everything so it worked out ok.
Thanks again for the helpful comments.
If you can't identify the flat side of the plastic lens (maybe it's gotten a little melted or damaged), you can also hold the LED up to a light and look at the inner parts. You'll notice one of the inner "guts" is larger and wider, while the other is smaller and thinner. There's a mnemonic that works here: "flat, fat, cat". The flat side of the lens and fatter side of the "guts" indicate the cathode (negative) side of the LED. This is a much more reliable method than the length of the legs, since there is not a universal manufacturing standard for which leg should be longer.
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Muad'zin wrote:
I want Pterodactyl sounds dammit, not a nice little analog sustain.