temp_controll_relay.py

#!/usr/bin/env python
import os
import glob
import time
import datetime
import max7219.led as led
from max7219.font import proportional, SINCLAIR_FONT, TINY_FONT, CP437_FONT
from random import randrange
import RPi.GPIO as GPIO
import threading
from threading import Thread

# TEST GPG 1
# EST GPG 2
test

GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM)
GPIO.setup(21, GPIO.IN)
GPIO.setup(26, GPIO.OUT)

os.system('modprobe w1-gpio')
os.system('modprobe w1-therm')

base_dir = '/sys/bus/w1/devices/'
device_folder = glob.glob(base_dir + '28*')[0]
device_file = device_folder + '/w1_slave'

def read_temp_raw():
	f = open(device_file, 'r')
	lines = f.readlines()
	f.close()
	return lines
	
def read_temp():
	lines = read_temp_raw()
	while lines[0].strip()[-3:] != 'YES':
		time.sleep(0.2)
		lines = read_temp_raw()
	equals_pos = lines[1].find('t=')
	if equals_pos != -1:
			temp_string = lines[1][equals_pos+2:]
			temp_c = float(temp_string) / 1000.0
			temp_f = temp_c * 9.0 / 5.0 + 32.0
	return temp_c#,temp_f  #Remove # if temperature requirement is in Fahrenheit
			
def fuc2():		
	while True:
			print('C T is ',str("%.2f" % read_temp())+ "`C")
			a=input("Enter the temperature value between 24 & 30: ")
			if a>=24 and a<=30:
				print("Good to go")
				break
			else:
				print("Wrong Input")
			continue	
	
	while True:
		if read_temp() >= a:
			GPIO.output(26,1)
		elif read_temp() <= a-2:
			GPIO.output(26,0)
	
			
def fuc1():		
	while True: 
		device = led.matrix(cascaded=1)
		rd=read_temp()
		con = str("%.2f" % rd)+"`C" 			#+"Time is "+str(datetime.datetime.now().time()) "%.2f" %" for TWO decimial point
#		print(con) #To display on the terminal
#		print(datetime.datetime.now().time())
		device.show_message(con, font=proportional(CP437_FONT))
		
		
Thread(target=fuc1).start()
Thread(target=fuc2).start()