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

    PIC Analogue Synthesizer
    Detector And Controller
    Mains-Powered Timer
    Automatic Inverter Supply and Mains Supply Changeover Relay
    ir control
    computer-circuits
    atmega 32a programming
    IMPROVED TV COLOR WHEEL CONVERTER
    Wireless Transmitter
    A low noise four phase crystal oscillator
    Digital sine wave generator



    Top