Using a CMOS 555 timer, you can drive seven high-brightness LEDs from a single 1.25V cell. Analog switch converts 555 timer into pulse-width modulator Added CMOS switch enhances a PWM oscillator. Use ...

Just about anything can be made with a 555 Timer, and every circuit is fun to build, which I show in my book “Essential 555 IC: Design, Configure, and Create Clever Circuits.” ...

This time, however, [Tim] decided to actually show how this can be done by removing some of the integrated circuits from an electronic dice and relying entirely on the 555 timer for his build.

The 555 timer IC has been around now for quite some time and the list of potential uses for this device appears to be endless. ... lets take a look at the basic anatomy of the timer. A diagram shows ...

The 555 was a cool chip back in it’s day, the same way incandescent lights were cool when they were the only option, and dial telephones were still the rule. Times change.