If you’re not familiar with the 555 timer, suffice it to say that this ... While you can still buy the original-recipe bipolar 555 with its 100 kHz frequency limit from several vendors, the ...
If they use an Arduino, it should have been an ATtiny. And of course, if an ATtiny was used, there should have simply been a 555 timer. This time, however, [Tim] decided to actually show how this ...
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