This is a small size led flasher built with the 555 timer IC that is powered from 2 x 1.5V batteries. The circuit can be used as a flashing metronome, dark room timer, memo-reminder or other similar ...

This simple LED driver circuit allows us to drive up to seven LEDs by using ... The LED driver uses a CMOS 555 timer since it operated with low voltages and can work for about 190 hours when using a ...

Take this Christmas tree for example, which uses a 555 timer and a CB4017 decade counter in order to drive some blinking LEDs. The ICs are through-hole, making the circuit fairly accessible to new ...

It is a 555 LED flashing circuit? Yep. How about a hex counter ... When [grandalf]’s friend showed them a project where a 555 timer was installed on an Arduino shield, they realized two things: ...