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 ...

The 555 timer contest wants to see you do something ... Use it like a timer; blink an LED, fading one, or making some sweet sweet music with twenty of them. For the top prizes, we want you to ...

It’s a freeform circuit that synthesizes sound using 555 timers ... in the form of a RGB LED. One with a self-contained circuit to cycle through various colors and blinking patterns.

555 timers may be over 50 years old ... about anything without the need to know programming languages. A blinking light led to an electronic switch to storing an alert notification—if someone ...

If your design requires a constant-current LED, such as those in LED lighting or luminaires, then you may not need these advanced features. In these applications, a 555 timer can replace the ...

“It is designed for on/off button debouncing, delayed start-up timing, programmable sequencing and timing-out in toys, remote control, electric toothbrushes, buzzers, and LED pointers,” said Semtech.

where K is a constant that depends on the particular type of 555 timer used. The LED's peak current is roughly equal to the maximum inductor current, I L(max), where: Thus, for a particular value ...