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 oscillato… ...

Blinking orange lights mean the battery is overheating The Green Reaper/YouTube On certain models of Ego battery packs, the LED fuel gauge may begin blinking orange when its button is pressed.

Flashing, spinning, and oddly blinking LED indicators have become the modern equivalent of red warning lights on a car dashboard. Rather than giving every potential problem and function on a ...