4017 led pattern flasher


Posted on Feb 6, 2014

The circuit uses a 555 timer oscillator to supply clock pulses of a variable frequency to the 4017 decade counter. The decade counter only needs to have three outputs so the fourth output goes into the reset pin to start the cycle all over again. The central red led is always on. Each row of four leds flash in sequence giving the impression that t


4017 led pattern flasher
Click here to download the full size of the above Circuit.

he light is rotating. It is an idea that works very well giving an eye-catching display. It will run continuously for three hours with a standard pp3 battery.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    LED display Digital Calendar AT89C2051
    Stand-by Battery Charger
    Switch mode power supply
    Audio oscillator
    Ua2240-staircase-generator
    1750M Transverter Circuit
    FM Wireless Microphone Transmitter with High Power
    PLL Frequency Synthesizer



    Top