the circuit pays homage to the original 8-pin DIP form of the 555. The video below shows the design and build process as well as testing of all the common modes of operation for the timer chip.

LED strip dimmer (circa 2019) uses a 555 timer, because what else would you use? This year is the 50th anniversary of the original design. Back in 1971 [Hans Camenzind] combined 23 transistors ...