French -> english translation
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@ -45,10 +45,12 @@ def update_epd():
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"""
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Update ePaper Display
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"""
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#rotation de l'image de 90° + 180° si le paramètre epd_rotate est différent de 0
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# la translation permet de rattraper un petit décalage en cas de rotation de 90+180°
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screen = image.rotate(90 + (epd_rotate * 180), expand=True, translate=(-6*epd_rotate, 0))
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#Mis en memoire de l'image à afficher et affichage de l'image
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# 90° rotation + 180° if parameter epd_rotate different of 0
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# The small translation corrects an offset after rotation of 270°
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screen = image.rotate(90 + (epd_rotate * 180),
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expand=True,
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translate=(-6*epd_rotate, 0))
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# Put the picture to display in frame memory and display the new frame
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epd.set_frame_memory(screen, 0, 0)
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epd.display_frame()
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@ -57,9 +59,7 @@ def update_epd():
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#############
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def on_connect(client, userdata, flags, rc):
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"""
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Callback pour la connection au MQTT : souscriptions aux topics
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"""
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"""On connection callback : topics subscription"""
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print(mqtt.connack_string(rc))
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if rc == 0:
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print("Subscribing to %s ..." % mqtt_topic)
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@ -70,28 +70,28 @@ def on_connect(client, userdata, flags, rc):
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def on_message(client, userdata, msg):
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"""
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Callback de gestion des messages arrivant au MQTT :
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affichage et enregistrement en base de données
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"""
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"""Callback for managing data sent by MQTT broker"""
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top=msg.topic[len(mqtt_topic)-1:].strip()
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#List of the subtopics
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subtopics = top.split("/")
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#Display atmospheric data from BME280 sensor
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if subtopics[0] == "BME":
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payload = msg.payload.decode()
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val = json.loads(payload)
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#Test présence et cohérence de la valeur
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#Is value consistent ?
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try:
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val['value'] = float(val['value'] )
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except:
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print("Value error: {}".format(val['value']))
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val['value'] = float('nan')
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#Gestion du symbole des degrés parfois difficile pour certaines sources
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#Manage special character "degree"
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val['unit'] = val['unit'].replace('deg', '°')
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#Affichage des données
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#List of 'displayable' data types and their coordinate on screen
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coord_type = { 'AT' : (12, 50),
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'RH' : (137, 50),
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'AP' : (12, 72),
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@ -99,46 +99,48 @@ def on_message(client, userdata, msg):
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}
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print(val)
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if val['type'] in coord_type:
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#erase former text
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#Erase old data
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draw.rectangle(coord_type[val['type']] + (coord_type[val['type']][0] + 112, coord_type[val['type']][1] + 20), fill=white)
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#draw new values
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#Draw new values
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draw.text(coord_type[val['type']],
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"{:6.1f}{} ".format(val['value'], val['unit']),
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font=font20_bold,
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fill=black)
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update_epd()
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# Print feather's date and time on epaper display
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elif subtopics[0] == "SYS":
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payload = msg.payload.decode()
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val = json.loads(payload)
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if val['type'] == "TIME":
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try:
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#Mise en forme de la date et heure reçu pour fuseau horaire configuré
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#Check the date and time and offset to the right timezone
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dt_texte = datetime.strftime(datetime.strptime(val['value'], "%Y/%m/%d_%H:%M:%S") + TimeZone.utcoffset(None),
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"%d/%m/%Y %H:%M:%S")
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except:
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dt_texte = payload
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print(dt_texte)
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# First erase old text
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draw.rectangle((0, 34, epd2in13.EPD_HEIGHT, 48), fill=white)
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# and draw the new date
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draw.text((0, 34), dt_texte, font=font14, fill=black)
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update_epd()
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def on_message_camera(client, userdata, msg):
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"""
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Update display with info from camera (camera shooting new photo or name of the
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last photo)
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"""
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"""Update display with info from camera (camera shooting new picture or name
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of the last photo)"""
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pl = msg.payload.decode()
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print("{} : {} ({})".format(msg.topic, pl, type(pl)))
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# Photo en cours
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# If a picture is been taken
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if pl == "1" and msg.topic == camera_mqtt_topic + "/shooting" :
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draw.rectangle((0, 106, epd2in13.EPD_HEIGHT, epd2in13.EPD_WIDTH), fill=white)
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draw.text((0, 106), "Shooting photo... ", font=font14, fill=black)
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update_epd()
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#Dernière photo prise
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#Last picture name (with date/time)
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if msg.topic == camera_mqtt_topic + "/last_photo":
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draw.rectangle((0, 106, epd2in13.EPD_HEIGHT, epd2in13.EPD_WIDTH), fill=white)
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draw.text((0, 106), "Last: " + pl, font=font14, fill=black)
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@ -146,11 +148,9 @@ def on_message_camera(client, userdata, msg):
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def on_disconnect(client, userdata, msg):
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"""
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Callback de déconnexion au broker MQTT
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"""
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"""Disconnection callback"""
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if msg != 0:
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print("Déconnexion imprévu : %s" % msg)
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print("Unexpected disconnection : {}".format(msg))
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exit()
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########
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@ -179,17 +179,19 @@ font20_bold = ImageFont.truetype(epd_bold_font_file, 20)
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image = Image.new('1', (epd2in13.EPD_HEIGHT, epd2in13.EPD_WIDTH), 255)
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draw = ImageDraw.Draw(image)
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#Draw basic text and frame :
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#Draw title in white on black
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draw.rectangle((0, 0, epd2in13.EPD_HEIGHT, 18), fill=black)
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draw.text((60, 1),
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"Projet Camétéo",
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font=font16_bold,
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fill=white)
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#Write hostname and IP address
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draw.text((0, 19),
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"{} : IP= {}".format(socket.gethostname(),
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netifaces.ifaddresses('wlan0')[2][0]['addr']),
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font = font12,
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fill=black )
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# Draw the black lines for data table
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draw.line((0,49,epd2in13.EPD_HEIGHT, 49), fill=black)
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draw.line((0,71,epd2in13.EPD_HEIGHT, 71), fill=black)
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draw.line((0,93,epd2in13.EPD_HEIGHT, 93), fill=black)
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@ -199,11 +201,6 @@ draw.line((125, 49, 125, 93), fill=black)
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epd.clear_frame_memory(0xFF)
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update_epd()
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#
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#screen = image.rotate(90, expand=True)
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#epd.set_frame_memory(screen, 0, 0)
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#epd.display_frame()
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#Toggle to partial refresh
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epd.init(epd.lut_partial_update)
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@ -213,8 +210,7 @@ mqtt_client.username_pw_set(mqtt_user, mqtt_pass)
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mqtt_client.on_connect = on_connect
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mqtt_client.on_message = on_message
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mqtt_client.on_disconnect = on_disconnect
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#mqtt_client.message_callback_add("feather0/NTP/date", on_message_date)
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#Special callback for camera
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mqtt_client.message_callback_add(camera_mqtt_topic + "/#", on_message_camera)
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print(mqtt_host + ":" + str(mqtt_port))
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