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, ...

Hey Guys! Welcome to The Droid Guy! Today, we are going to talk about red light blinking on Sony TV, and the basic troubleshooting steps to fix the issue. Do you own a Sony TV, such as the Sony Bravia ...

Amazon’s Fire TV Alexa Voice Remote uses a blue LED light to indicate functions such as active Alexa listening, successful pairing, or normal operation during troubleshooting. A blinking blue light ...