| General > General Technical Chat |
| Where have you actually come across a 555 timer in the wild? |
| (1/16) > >> |
| thomastheo:
Hundreds of millions of NE555's are produced every year, but I don't seems to actually come across them very often in products I've torn down or had a peek in. I have a little drawer full of them somewhere, but i doubt all those chips are manufactured only to be destined for our collective parts bins )) I'm very curious to see where you have actually encountered them in the wild, and the particular function they've been drafted to perform in actual commercial/industrial products. They're so versatile, there must be some interesting applications out there... |
| Jarrod Roberson:
pretty much ever blinky led kids toy thing-a-ma-bob with no real inteliigence, has an equivalent IC in it. Maybe not a DIP packaged one, but the same thing none the less. |
| kayvee:
Burglar alarm siren driver was a popular application. |
| poorchava:
Crude (but actually useful and mass-produced) motor pwm driver. I've also seen one on an old PC motherboard, although I don;t recall what was it used for. |
| BillyD:
Back in the late 80's I had a flashing armband which took a 9v battery and had 2 red leds pointing forward and two facing rearward. It actually looked quite cool for its time as leds were still pretty rare as lighting devices (as opposed to say status indicators). So its innards consisted of your basic 555 blinky led board. |
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