Neuroscientists probing the boundary between sleep and awareness are finding many types of liminal states, which help explain ...

In this project, I'll make a small circuit capable of blinking lights, on its output we get a digital signal that we can use ...

This is a very simple but useful project, strobe navigation lights for rc airplanes, or you can adjust the flashing time and make it a warning light for a forklift or even a turn signal light for a ...