from machine import Pin
from time import sleep
from dht import DHT22

import utime
import random



datapin = Pin(18, Pin.OUT); #DS
clockpin = Pin(20, Pin.OUT);#SHCP
latchpin = Pin(19, Pin.OUT);#STCP

#dht = DHT22(Pin(9))
data1 = 10000000



def shift_update(input,data,clock,latch):
  #put latch down to start data sending
  clock.value(0)
  latch.value(0)
  clock.value(1)
  
  #load data in reverse order
  for i in range(7, -1, -1):
    clock.value(0)
    data.value(int(input[i]))
    clock.value(1)
    

  #put latch up to store data on register
  clock.value(0)
  latch.value(1)
  clock.value(1)

bit_strin = "10000001"
while True:
    shift_update(bit_strin,datapin,clockpin,latchpin)
    #bit_string = str(random.randint(0, 1))+bit_string[:-1]
    utime.sleep(0.3)


    
    


    # getting sensor readings
    #dht.measure()
    #temp = dht.temperature()
    #hum = dht.humidity()
    #sleep(2)

    #print("Temperature: {}°C   Humidity: {:.0f}% ".format(temp, hum))