The Photodiode You Never Knew You Had

mesamune@lemmy.world to Technology@lemmy.world – 36 points –
The Photodiode You Never Knew You Had
hackaday.com
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Using Diodes and their ilk as LEDs is the EE equivalent of "all mushrooms are edible, some only once"

The secret of all diodes is that they are all LEDs as well. The frequency determined by the bandgap. For most unfortunately, that means infrared and releasing the magic smoke.