working ic.py

import RPi.GPIO as IO         # calling for header file which helps us use GPIO’s of PI

import time                             # calling for time to provide delays in program

IO.setwarnings(False)           # do not show any warnings

x=1                

IO.setmode (IO.BCM)        # programming the GPIO by BCM pin numbers. (like PIN29 as‘GPIO5’)

IO.setup(4,IO.OUT)            # initialize GPIO Pins as an output.

IO.setup(5,IO.OUT)

IO.setup(6,IO.OUT)

while 1:                               # execute loop forever

    for y in range(8):            # loop for counting up 8 times

        IO.output(4,1)            # pull up the data pin for every bit.

        time.sleep(0.1)            # wait for 100ms

        IO.output(5,1)            # pull CLOCK pin high

        time.sleep(0.1)

        IO.output(5,0)            # pull CLOCK pin down, to send a rising edge

        IO.output(4,0)            # clear the DATA pin

        IO.output(6,1)            # pull the SHIFT pin high to put the 8 bit data out parallel

        time.sleep(0.1)

        IO.output(6,0)            # pull down the SHIFT pin

    for y in range(8):            # loop for counting up 8 times

        IO.output(4,0)            # clear the DATA pin, to send 0

        time.sleep(0.1)            # wait for 100ms

        IO.output(5,1)            # pull CLOCK pin high

        time.sleep(0.1)

        IO.output(5,0)            # pull CLOCK pin down, to send a rising edge

        IO.output(4,0)            # keep the DATA bit low to keep the countdown

        IO.output(6,1)            # pull the SHIFT pin high to put the 8 bit data out parallel

        time.sleep(0.1)

        IO.output(6,0)