This is a simple flashing led circuit with 2 leds and 2 NPN transistors. It illustrates the behavior of transistors and capacitors and if you use an oscilloscope it will be very easy to determine what ...

AC mains operated single LED flasher circuit, built using the popular CMOS timer chip TLC555 is shown below. The whole circuit is powered directly by the grid supply of 230VAC through a capacitive ...

The city of Boulder is considering a number of ways to improve the safety of pedestrian crosswalks. Here’s a look at some of the options being studied. Install “visors” over LED flashing lights at ...

CORPUS CHRISTI, Tx — New flashing LED stop signs have been recently installed by the city of Corpus Christi’s Department of Public Works. There are 10 intersections across the city where you will ...

SAN DIEGO — Heading into Labor Day weekend, the California Department of Transportation is looking to prevent wrong-way crashes by implementing flashing LED lights around traffic signs in San Diego ...

GRAND RAPIDS, Mich. (WOOD) — The Michigan Department of Transportation is partnering with Michigan State Police and the city of Grand Rapids to use technology to prevent tragedy and cut down deadly ...

The company says the model L864 is the first LED-based flashing red beacon for marking radio and television towers and other obstacles that pose hazards to aircraft navigation. The light meets FAA, ...

Regular Hackaday readers will be familiar with the work of Boldport’s [Saar Drimer] in creating beauty in printed circuit board design. A recent work of his is the Widlar, a tribute to the legendary ...

Flashing LED mouthguards will be used at the Women’s Rugby World Cup 2025 in the latest development for player welfare. It is the newest advancement in technology for smart mouthguards, which were ...

You know how it is. You’ve got that new project running, and while it doesn’t consume much power, it also doesn’t give much indication of whether it’s functioning or just sitting there with a dead ...