The humble 555 timer has its origins back in the early 1970s as the NE555, a bipolar integrated circuit. Over the years it ...

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 ...

In modern homes, apartments, and offices, multiple entrance doors are common. Traditionally, each door requires a separate doorbell, which increases cost and ...

Figure 1 shows how to digitally program the on-time of a one-shot multivibrator circuit. More and more, the Internet is playing a role in control operations in industrial and R&D endeavors and in ...