merging

.gitignore

@@ -9,6 +9,7 @@ __pycache__/
 
 # Distribution / packaging
 .Python
+env/
 build/
 develop-eggs/
 dist/
@@ -46,7 +47,6 @@ htmlcov/
 .cache
 nosetests.xml
 coverage.xml
-*.cover
 *.py,cover
 .hypothesis/
 .pytest_cache/
@@ -79,6 +79,11 @@ target/
 # Jupyter Notebook
 .ipynb_checkpoints
 
+# pyenv
+.python-version
+
+# celery beat schedule file
+celerybeat-schedule
 # IPython
 profile_default/
 ipython_config.py
@@ -105,6 +110,9 @@ celerybeat.pid
 # SageMath parsed files
 *.sage.py
 
+# dotenv
+.env
+
 # Environments
 .env
 .venv
@@ -137,4 +145,3 @@ dmypy.json
 
 # Cython debug symbols
 cython_debug/
-

LICENSE

@@ -1,9 +1,21 @@
 MIT License
 
-Copyright (c) <year> <copyright holders>
+Copyright (c) 2018 Antoine Van-Elstraete <antoine@van-elstraete.net>
 
-Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
 
-The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
 
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -1,2 +1,11 @@
-# Otio_WH5100
+# Otio WH5100
+Communication avec une station météo Otio WH5100
 
+# Dépendances
+ * Python3
+ * rtl_433 : [merbanan/rtl_433](https://github.com/merbanan/rtl_433)
+
+# Lien
+ * [Rétro-ingénierie d’une station météo](https://blog.antoineve.me/2017/07/30/ingenierie-inverse-station-meteo-otio/)
+
+![Capteurs de la station météo](https://nuage.van-elstraete.net/apps/gallery/s/BgXcmy8dbbybock)

meteo_otio.py

@@ -0,0 +1,182 @@
+#!/usr/bin/env python3
+# -*- coding: UTF-8 -*-
+'''
+Ce programme récupère les données d'une station météo OTIO WH5100 au moyen
+d'un dongle DVB-T de type RTL-2838
+'''
+
+__docformat__ = 'restructuredtext en'
+
+from datetime import datetime
+from time import sleep
+import subprocess
+import urllib.request
+import json
+import logging
+
+logging.basicConfig(
+        level=logging.DEBUG,
+        format='[METEO] - %(asctime)s - %(message)s',
+        datefmt='[%d/%m/%Y %H:%M:%S]')
+
+API_URL = "http://127.0.0.1/api/meteo"
+RTL_SDR_FREQ = 868304625
+'''
+Il semble que l'état des piles modifié l'offset de la température
+'''
+REMPLACEMENT = {
+        '6d': '65',
+        '6c': '64',
+        '6b': '63',
+        '6a': '62',
+        '25': '65',
+        '24': '64',
+        '23': '63',
+        '22': '62'
+        }
+
+
+def getweather():
+    '''
+    Lit les données depuis le rtl_sdr
+    La fonction pour la température est y = 0.05x-1268.8
+    La fonction pour l'humidité est y = x/2
+    Pour la vitesse du vent, la formule a était trouvée avec une regression
+    linéaire sur une vingtaine de mesure.
+    Pour le pluviomètre, il s'agit d'un compteur relatif ; la valeur est
+    stockée pour pouvoir effectuer une différence avec la précédente.
+    Ensuite, pour afficher les mêmes valeurs que sur la station méto "officielle",
+    il faut utiliser la formule suivante :
+    0.3*(((np.sum(pluie)/2)*10)//3)
+    avec np.sum la somme des enregistrements sur une période donnée (1h, 24h, ...)
+    '''
+
+    timestamp = datetime.now().timestamp()
+
+    def temperature(raw):
+        return round((0.05*raw-1268.8), 1)
+
+    def humidity(raw):
+        return int(round(raw/2))
+
+    def wind(raw):
+        return round((0.61264343715451175*raw-0.018142655636458116), 1)
+
+    def rain(raw):
+        current = int(raw)
+        try:
+            with open("/tmp/old_rain", "r") as tmp:
+                old_rain = int(tmp.read())
+        except FileNotFoundError:
+            old_rain = None
+        except Exception as err:
+            logging.error("Error : " + str(err))
+            return int(0)
+        if old_rain is None:
+            with open("/tmp/old_rain", "w") as tmp:
+                tmp.write(str(current))
+            return int(0)
+        if current > old_rain:
+            res = round(float(current-old_rain)*0.3, 1)
+            with open("/tmp/old_rain", "w") as tmp:
+                tmp.write(str(current))
+        else:
+            if (current+255)-old_rain < 254:
+                res = round(float((current+255)-old_rain)*0.3, 1)
+                with open("/tmp/old_rain", "w") as tmp:
+                    tmp.write(str(current))
+            else:
+                res = 0
+        return float(res)
+
+    p = subprocess.Popen(
+        ["sudo", "rtl_433", "-f", str(RTL_SDR_FREQ), "-q", "-A", "-T", "50"],
+        stdout=subprocess.PIPE,
+        stderr=subprocess.PIPE)
+    stdout, stderr = p.communicate()
+    try:
+        frame = None
+        for line in stderr.decode().splitlines():
+            if '[00]' in line and '{79}' in line:
+                frame = line.split()
+                if frame[4] in REMPLACEMENT.keys():
+                    frame[4] = REMPLACEMENT[frame[4]]
+                t = temperature(int(str(frame[4]) + str(frame[5]), 16))
+                h = humidity(int(str(frame[6]), 16))
+                w_median = wind(int(frame[7], 16))
+                w_gust = wind(int(frame[8], 16))
+                r = rain(int(frame[10], 16))
+                break
+            elif "Time expired" in line:
+                logging.error("Aucune donnée reçu !")
+                return None
+            elif "Signal caught" in line:
+                ### Specifique à FreeBSD
+                ### TODO : adapter à GNU/Linux
+                logging.error("Erreur de communication !")
+#                p = subprocess.Popen(
+#                        ["sudo", "usbconfig"],
+#                        stdout=subprocess.PIPE,stderr=subprocess.PIPE)
+#                stdout, stderr = p.communicate()
+#                ports = stdout.decode().splitlines()
+##                for port in ports:
+#                    if "Realtek" in port:
+#                        port_meteo = port.split()[0].split(':')[0]
+#                logging.info("Redémarrage de port USB... ({})".format(port_meteo))
+#                p = subprocess.Popen(
+#                        ["sudo", "usbconfig", "-d", port_meteo, "reset"],
+#                        stdout=subprocess.PIPE,stderr=subprocess.PIPE)
+#                stdout, stderr = p.communicate()
+                sleep(10)
+                return None
+        if frame:
+            with open("/home/antoine/station_meteo.log", "a") as logfile:
+                logfile.write(str(frame) + "\n")
+            if -20 <= t <= 60 and 0 <= h <= 100 and r < 10:
+                donnees_meteo = {
+                    'timestamp': float(timestamp),
+                    'temp': float(t),
+                    'hum': int(h),
+                    'wind': float(w_median),
+                    'gust': float(w_gust),
+                    'rain': float(r),
+                }
+                return donnees_meteo, int(frame[10], 16)
+            else:
+                logging.error("Donnée illogique :/")
+                logging.error("T="+str(t)+" H="+str(h)+" R="+str(r))
+                logging.error(str(frame))
+                return None
+        else:
+            return None
+    except Exception as err:
+        logging.error("Impossible de décoder les données : " + str(err))
+        for line in stderr.decode().splitlines():
+            if '[00]' in line:
+                logging.debug(line)
+            else:
+                logging.debug("Aucunes données valides reçues : « "
+                              + line + " »")
+        return None
+
+
+def main():  # pragma: no cover
+    ''' Renvoie les données sur une API si exécuté directement '''
+    req = urllib.request.Request(API_URL)
+    req.add_header('Content-Type', 'application/json; charset=utf-8')
+    data = getweather()
+    if data is not None:
+        logging.info("Données : " + str(data[0]))
+        data = json.dumps(data[0]).encode()
+        req.add_header('Content-Length', len(data))
+        try:
+            reponse = urllib.request.urlopen(req, data, 2)
+            logging.info("Données envoyées, le serveur a répondu « "
+                         + str(reponse.code) + " »")
+        except Exception as err:
+            logging.error("Aucunes données envoyées : " + str(err))
+
+
+if __name__ == '__main__':  # pragma: no cover
+    while True:
+        main()