The 555 timer contest wants to see you do something ... circuit-sculpture vibration sensor that repurposes the 555’s flip-flop. But hey, it doesn’t have to be world changing.

With a 555 on the BOM, you never know what you’re going to get. With 40 of the versatile timer chips in a build, you might just get something completely unexpected, like this 555-based eight-bit ...

The salient features of 555 timer ICs are Compatible with both TTL and CMOS logic ... It consists of a potential divider containing three 5 k ? resistors and an RS flip flop, where the R input is ...