Router lights blink to show real-time data activity, not just problems. Different speeds and colors indicate startup, active ...

Zoomed-in view showing LEDs with labels titled WLAN, Fon, and DECT on a Wi-Fi router - Thomas Nuehnen/Getty Images Modern Wi-Fi routers give you a lot to work with in terms of troubleshooting issues ...

This is a flashing led lights circuit powered from a 12V DC power supply that uses the well known 555 IC. Flashing lights have many and varied applications in life. They are used as warning lights on ...

Nowadays, single-color and multi-color flashing LEDs are easily available, which obviates the requirement of external chips to produce fascinating lighting effects ...

In most modern homes, a wireless router handles all of the Internet traffic that comes and goes. Gigabytes of data flow through it every month. It's a very busy little device, which you can see for ...

It is a pretty common first project to use an Arduino (or similar) to blink an LED. Which, of course, brings taunts of: you could have used a 555! You can, of course, also use any sort of oscillator, ...