Circle LED chaser circuit
This is the Circle LED chaser circuit or 10 LEDrunning light as another kind of string light circuit. Which is running light on circle each one step beautifully and can adjust speed as well. The working principle From circuit will see that we use two ICs. Which is IC1-NE555 as timer IC with a widely used general. In this circuit will use the IC-555 as the square wave generator to output. Which that frequency is determined by R-2.7K, R-470 ohms and C-10uF 16V. In addition yet has a VR1-potentiometer-10K is frequency adjuster. When IC1-NE555 generate the frequency up, will be …
LED Chaser Circuit
If you want to build a 10 LED Chaser circuit we suggest this circuit first. It uses popular IC is a simple and affordable IC-4017_decade counter and IC 555
Siren light from running light
The siren light uses that general use motor help in the whirl lamp or refect go to around, which weigh very and when be usable go to for a long time will cause the wearing out. but if we modify light running pretend siren make get siren that weighs light and can be usable for a long time go up. How it works The work of the circuit will divide the work goes out to are 3 the part, be origin frequency part will compose IC1 555 numbers will perform frequency origin. Which fix get with the value of R1, …