The 555 timer is one of the most versatile integrated circuits available. It can generate PWM signals, tones, and single-shot pulses. You can even put one in a bi-stable mode similar to a flip flop.

It’s available in a variety of 8-pin packages, including DIP, SOIC, and VSSSOP, in order of decreasing size. Also available is the hobbyist’s worst nightmare: a 555 in a chip-sized BGA (ball ...

If you keep seeing the angel number 555 everywhere, on clocks, receipts, license plates, or randomly in your daily scrolling, it’s not a coincidence. In spiritual circles and numerology ...

Are you noticing that you keep spotting the number 555 everywhere? Maybe you passed by a house recently with 555 engraved just above the door, or picked up your phone to check the time and ...