A low pulse on this pin (below 1/3 of VCC) sets the internal flip-flop and makes the output go HIGH. When the voltage on this pin reaches 2/3 of VCC, it resets the flip-flop, and the output goes LOW.

Publishing house Scholastic wrote the epilogue on its ownership of 555-557 Broadway with the sale of the SoHo building to Empire State Realty Trust (ESRT). Scholastic made a strong profit in the $386 ...

In theory, trigger warnings, also known as content warnings, should save us from seeing something upsetting — whether it’s a plain old gross-out, or some legitimately disturbing footage that can ruin ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Elissa Sanci Elissa Sanci is a senior writer who has reported on label makers, ...

One of the categories we chose for the One Hertz Challenge is “Could Have Used a 555.” What about when you couldn’t have, but did anyway? The 555 is famously easy to use, but not exactly the most ...

Ask the publishers to restore access to 500,000+ books. Can You Chip In? We’re celebrating our 1 trillionth archived web page. If you find our library useful, learn how you can help us fundraise! Can ...

Abstract: This paper studies an inverter-comparator and presents an improved scheme of threshold compensation to enhance the performance of avoiding power supply noise. The inverter can greatly ...

Take a Raspberry Pi Pico and connect a 555 timer to one of its GPIOs. Arrange for the 555 to poke the Pico about 10 times a second. Treat that "poke" as an interrupt. On the interrupt, light the ...

Justin Pot is a freelance journalist who helps people get more out of technology. We've talked more than once about the pomodoro technique, which is built around intensely focusing on a task for 25 ...

This circuit emulates the functionality of the classic 555-Timer IC. It was designed using open-source tools and was taped-out in the Skywater 130nm CMOS process through TinyTapeout on April 19th 2024 ...

The term trigger warning was coined in the late 1990s on feminist Internet message boards, where it cautioned readers about graphic depictions of crimes, typically rape. The idea was to help ...