Mini_project_v2.py

import os
import bluetooth
import RPi.GPIO as GPIO
from google.cloud import firestore

############Explicit Credential environment
path="/home/pi/Desktop/Cloud-Parking-f348563ba8bf.json"
os.environ['GOOGLE_APPLICATION_CREDENTIALS'] =path

"""##########Initialize bluetooth
server_socket=bluetooth.BluetoothSocket( bluetooth.RFCOMM )
port = 1
server_socket.bind(("",port))
server_socket.listen(1)
client_socket,address = server_socket.accept()
print ("Accepted connection from ",address)
####Bluetooth connection over """

#GPIO starts

GPIO.setmode(GPIO.BCM)     
GPIO.setwarnings(False)
GPIO.setup(14,GPIO.IN)



#firestore initialization
db = firestore.Client()
doc_ref = db.collection(u'sensor').document(u'Sensor1')				#node sensor1 in #node sensor

#here starts main
data=0
while 1:
	"""
	d = client_socket.recv(1024)
	c=str(d)
	data=c[2]"""
	if(GPIO.input(14)==True): #no car found
		data=0
	else: data=1
        
	print("Received: %s" % data)
	if(data=="0"):
		(#print("Sent: %s" % data)
		doc_ref.update({
		u'Car': u'Absent',				#in field  , value form
		u'bin': 0
		})
		
		)
	elif(data=="1"):
		(
		#print("Sent: %s" % data)
		doc_ref.update({
		u'Car': u'Present',	#in field  , value form
		u'bin': 1
		})
		)