This is a very simple but useful project, strobe navigation lights for rc airplanes, or you can adjust the flashing time and ...

This time I bring an electronic kit for beginners, this is a very cheap and interesting device that displays audio levels into the LEDs just like any audio level bar indicator will do. It is simple ...

You can put LED flash notifications on your iPhone in a few simple steps, which can be helpful for people who are deaf or hard of hearing.