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 | # http://picamera.readthedocs.io/en/release-1.0/index.html
#*********************************************************
#*            CARTE de SAUVEGARGE 26/04/2019             * 
#*********************************************************
#!usr/bin/sudo python3 pour le demarage auto
# ATTENTION pour demarrer : python3 simple_cam.py
# ctrl + c pour quitter
# ps -ef | grep simple_cam.py pour avoir son numero et le killer
# sudo kill -9 son numero
# sudo chmod 777 rc.local pour avoir les droit
# sudo python3 /home/pi/henri/simple_cam.py dans RC.local
# apt-mark showauto | grep gpio recherche de paquets installé automatiquement
# apt-mark showmanual |grep pio recherche de paquets installé manuelement
# FING applic portable S3 pour détecter les IP utilisé
# liste des HSB : lsusb
# /opt/vc/bin/vcgencmd measure_temp //Temperarure interne du RPI
# history -c Clear History
# which vcgencmd ou n'importe quoi
# sudo find / -name NOM DU FICHIER
# sudo apt rem
 
import io
import picamera
import itertools
import datetime as dt
import time
import logging
import socketserver
from threading import Condition 
from http import server
from picamera import Color
# gestion Temperature du RPI
import threading
import time
from subprocess import getoutput
# Librairies de lecture des roues codeuses etde l'horloge
import RPi.GPIO as GPIO                                               # Importation des librairies qui gerent les ports
import time                                                           # Importation de la librairie temps
# Librairies des calculs des heures 
from datetime import timedelta
from datetime import datetime
 
# ****************  Fonctions du GPIO ****************************** 
GPIO.setmode(GPIO.BCM)                                                # BCM : Numero des GPIO / BOARD : Numero du connecteur
# GPIO.setwarnIN,(False) 
 
# **********  
GPIO.setup(4, GPIO.IN, pull_up_down=GPIO.PUD_DOWN) # DOWN , pull_up_down=GPIO.PUD_UP
GPIO.setup(17, GPIO.IN, pull_up_down=GPIO.PUD_DOWN) 
GPIO.setup(27, GPIO.IN, pull_up_down=GPIO.PUD_DOWN) 
GPIO.setup(22, GPIO.IN, pull_up_down=GPIO.PUD_DOWN) 
# **********  
GPIO.setup(5, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
GPIO.setup(6, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
GPIO.setup(13, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
GPIO.setup(19, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
# **********  
GPIO.setup(26, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
GPIO.setup(21, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
GPIO.setup(20, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
GPIO.setup(16, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
# **********  
GPIO.setup(12, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
GPIO.setup(25, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
GPIO.setup(24, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
GPIO.setup(23, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
 
# **************** Appele de Fonctions du GPIO ****************************** 
tempo1 = 0 # global variable
 
def roue(): # https://pythonbasics.org/multiple-return/
    global tempo1
    status4 = GPIO.input(4)
    unitee = status4
    status17= GPIO.input(17)
    unitee = unitee + (status17 * 2)
    status27 = GPIO.input(27)
    unitee = unitee + (status27 * 4)
    status22 = GPIO.input(22)
    unitee = unitee + (status22 * 8)    
    status5 = GPIO.input(5)
    dizaine = status5
    status6= GPIO.input(6)
    dizaine = dizaine + (status6 * 2)
    status13 = GPIO.input(13)
    dizaine = dizaine + (status13 * 4)
    status19 = GPIO.input(19)
    dizaine = dizaine + (status19 * 8)    
    status26 = GPIO.input(26)
    centaine = status26
    status21= GPIO.input(21)
    centaine = centaine + (status21 * 2)
    status20 = GPIO.input(20)
    centaine = centaine + (status20 * 4)
    status16 = GPIO.input(16)
    centaine = centaine + (status16 * 8)
    millier = 0
    status12 = GPIO.input(12)
    millier = status12
    status25= GPIO.input(25)
    millier = millier + (status25 * 2)    
    status24 = GPIO.input(24)
    millier = millier + (status24 * 4) 
    status23 = GPIO.input(23)
    millier = millier + (status23 * 8) 
    tempo = str(millier) + str(centaine) + str(dizaine) + str(unitee) 
    if (tempo1 != tempo):
        tempo1 = tempo
        boulet = 1
    else:
        boulet = 0
    # print("___Boulet ____ : ", boulet)
    return (unitee,dizaine,centaine,millier,boulet) 
 
# ********************** Fonction Horloge ********************
t4 = 0
# while True:
def horloge():
    global tempo
    global t4
    global t3
    global t2
    global t1
    # t3 = datetime.now() # pour le singer
    unitee,dizaine,centaine,millier,boulet = roue() # roue(unitee,dizaine,centaine,millier)
    time.sleep(1)
    tempo = str(millier) + str(centaine) + str(dizaine) + str(unitee)  
    print("Boulet =", boulet) # Flag pour distinguer si il y à un changement sur les roues codeuses
 
    if (boulet == 1):
        now = datetime.now()
        t1 = timedelta(hours = int(now.strftime("%H")),minutes  = int(now.strftime("%M")), seconds = int(now.strftime("%S")))     
        t2 = timedelta(hours = (millier * 10 + centaine),minutes  = (dizaine *10 + unitee) , seconds = 0)
        t3 = t1 + t2  
        print("t1 =", t1) # heure courante
        print("t2 =", t2) # heure roue codeuse
        print("t3 =", t3) # heure de Fin
    else:
        now = datetime.now()
        t1 = timedelta(hours = int(now.strftime("%H")),minutes  = int(now.strftime("%M")), seconds = int(now.strftime("%S")))
        t4 = t3 - t1 # t4 = t3 - t1
        print("t1_B =", t1) # heure courante
        # print("t2_B =", t2) # heure roue codeuse
        print("t3_B =", t3) # heure de Fin        
        print("Temps restant(t4_B) =",t4) #Temps restant
        print("type of t4 =", type(t4))
        # return(t4) # inutile
# ********************* Page serveur Camera ************************
PAGE="""
<html>
<head>
<title>picamera MJPEG streaming demo</title>
</head>
<body>
<center>
<h1>PiCamera MJPEG Streaming Demo de HENRI</h1>
<h1>CARTE de SAUVEGARGE 26/04/2019</h1>
<img src="stream.mjpg" width="640" height="480" />
</center>
</body>
</html>
"""
 
# gestion Temperature
chaleur= 0 
 
def rien():
	while True:
		global chaleur
		time.sleep(1) # 5 0.3
		chaleur = float(getoutput('/opt/vc/bin/vcgencmd measure_temp')[5:-2])
		horloge() #  Appele de la fonction Horloge
		# print( chaleur )
		print("Horloge T4",t4) 
 
class StreamingOutput(object):
    def __init__(self):
        self.frame = None
        self.buffer = io.BytesIO()
        self.condition = Condition()
 
    def write(self, buf):
        if buf.startswith(b'\xff\xd8'):
            self.buffer.truncate()
            with self.condition:
                # print("de visu : " + t4)
                self.frame = self.buffer.getvalue() 
                self.condition.notify_all()
                # camera.annotate_text = 'Date & Heure\n' + dt.datetime.now().strftime('%d-%m-%Y %H:%M:%S\n') + 'cal' # OK
                camera.annotate_text = dt.datetime.now().strftime('%d-%B-%Y %H:%M:%S\n') + ("Temps restant :" + str(t4))+ ('\n Temperature RPI %0.1f ' % chaleur)
                # camera.annotate_text = 'Chaleur : ' + float(chaleur)
                self.buffer.seek(0)
        return self.buffer.write(buf)
 
class StreamingHandler(server.BaseHTTPRequestHandler):
    def do_GET(self):
        if self.path == '/':
            self.send_response(301)
            self.send_header('Location', '/index.html')
            self.end_headers()
        elif self.path == '/index.html':
            content = PAGE.encode('utf-8')
            self.send_response(200)
            self.send_header('Content-Type', 'text/html')
            self.send_header('Content-Length', len(content))
            self.end_headers()
            self.wfile.write(content)
            # threading.Thread(target=horloge().start) # Démmare le Thread de l'Horloge            
            threading.Thread(target=rien().start)  # Démmare le Thread de temperature
        elif self.path == '/stream.mjpg':
            self.send_response(200)
            self.send_header('Age', 0)
            self.send_header('Cache-Control', 'no-cache, private')
            self.send_header('Pragma', 'no-cache')
            self.send_header('Content-Type', 'multipart/x-mixed-replace; boundary=FRAME')
            self.end_headers()
            try:
                while True:
                    with output.condition:
                        output.condition.wait()
                        frame = output.frame
                    self.wfile.write(b'--FRAME\r\n')
                    self.send_header('Content-Type', 'image/jpeg')
                    self.send_header('Content-Length', len(frame))
                    self.end_headers()
                    self.wfile.write(frame)
                    self.wfile.write(b'\r\n')
            except Exception as e:
                logging.warning(
                    'Removed streaming client %s: %s',
                    self.client_address, str(e))                      
        else:
            self.send_error(404)
            self.end_headers()
 
class StreamingServer(socketserver.ThreadingMixIn, server.HTTPServer):
    allow_reuse_address = True    
    daemon_threads = True
 
 
with picamera.PiCamera(resolution='640x480', framerate=24) as camera:
    camera.rotation='180'    # pour donner une oriantation de seulement 90° à l'image : 0/90/180/270
    # camera.hflip=False     # Retournement à 180 droite/gauche
    # camera.vflip=False     # Retournement à 180 haut/bas
    # camera.start_preview()
    camera.annotate_text_size = 15
    camera.annotate_foreground = Color('black')
    camera.annotate_background = Color('white')    
    # camera.annotate_text = dt.datetime.now().strftime('%d-%m-%Y %H:%M:%S')                 #"Visu"
    output = StreamingOutput()
    camera.start_recording(output, format='mjpeg')   
    try: 
        address = ('', 8000)
        server = StreamingServer(address, StreamingHandler)
        server.serve_forever()
        # gestion Temperature
        # threading.Thread(target=rien().start)
        # print(chaleur)
    finally:
        camera.stop_recording()
 
 
GPIO.cleanup | 
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