pileofstuff | 555 refresher tinkering @pileofstuff | Uploaded February 2023 | Updated October 2024, 10 hours ago.
After making a rookie mistake when discussing the 555 a few weeks ago, I figured I'd best spend some time refreshing my memory on this classic component.



Official datasheet: ti.com/lit/ds/symlink/lm555.pdf

555 calculator: digikey.com/en/resources/conversion-calculators/conversion-calculator-555-timer

Forrest Mims book: archive.org/details/electronics_-_Forrest_Mims-engineers_mini-notebook_555_timer_circuits_radio_sha

The Evil Mad Scientist giant 555 kit (with additional resources at the bottom of the page) : shop.evilmadscientist.com/productsmenu/652

I built this kit a couple of years ago: youtu.be/OHDbsn6DkyM

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This isn't the only way to do it.
It's probably not the best way to do it.
But it's how I did it.