The iPhone’s LED flash is a great companion to have for your iPhone’s camera, as it can shine some light in darker places when you’re taking photos, but the built-in flash on the iPhone can be used ...

A recent design project required a bright LED flash each time a 100-µs pulse occurred. The pulse repeated every 300 ms. Because the pulse was so short, driving the ...

Unlike some Android phones, Apple's iPhones don't have a dedicated notification LED that lights up when you get a call, text, or other alert. What iPhones do include is an optional Accessibility ...

The LED bulb at the back of your phone has a lot of uses. It is commonly used as a flash for the camera, which you can turn on and off within the camera app itself. It can also be used as a ...

The iPhone’s Quad-LED True Tone flash is pretty good as camera flashes go, but you should never use it to take actual photos, unless you want shiny-faced, red-eyed people in your portraits. Instead, ...

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