As it turns out, the ever-useful 555 timer chip does the job admirably. It’s a simple enough circuit, the threshold pin is pulled high so the output goes high, and the PWM drive from an Arduino ...

It’s back! The 555 timer contest wants to see you do something cool with the 555 timer chip. At stake is the adulation of electronics geeks everywhere. Three top winners will be awarded a $15… ...

When TV shows and movies need to use a phone number as part of the story, they typically use one that starts with 555. We spoke with an official historian at AT&T to find out why these three ...

Have you found yourself spotting 555, 5555, 5:55 or any series of repeating digits? Here's what's to know about the angel number 555 and its meaning of change and creativity.

While watching movies or television shows, you've no doubt noticed that whenever a phone number is used, it begins with 555. There is a reason for that. Decades ago, phone numbers were very different.

Now, let’s try to use the new circuit of the 555 for something useful. The measurement of a capacitor’s equivalent series resistance (ESR) may become a problem since the ESR can be very low, about ...

Thus, you can use a simple zener-diode regulator for the 555 and increase the input voltage to more than 30V. The input-voltage limit is a function of how much power the zener supply can handle while ...