Begin to add binary support for swisscom receiver

python/ttn-receiver.py

@@ -0,0 +1,66 @@
+# node.py
+# Simple Python client to show node activity from ttn MQTT brooker with credentials
+# Author: R.Schimmel
+# www.schimmel-bisolutions.nl
+# first install paho.mqtt.client: pip install paho-mqtt
+#
+# Enhanced for lorawan in Digital Glarus by Nico Schottelius (nico.schottelius -at- ungleich.ch)
+#
+
+import paho.mqtt.client as mqtt
+import psycopg2
+import json
+import base64
+import os
+import logging
+
+import lorautil
+
+log = logging.getLogger("ttn")
+log.setLevel(logging.DEBUG)
+
+#Call back functions
+
+# gives connection message
+def on_connect(client,userdata,rc):
+    print("Connected with result code:"+str(rc))
+    # subscribe for all devices of user
+    client.subscribe('+/devices/+/up')
+
+# gives message from device
+def on_message(client,userdata,msg):
+    myjson = msg.payload.decode('utf-8')
+    mydict = json.loads(myjson)
+    deveui = mydict['dev_eui']
+    payload = base64.b64decode(mydict['payload']).decode('utf-8')
+
+    log.info("Message received: {}: {}".format(deveui, payload))
+    lorautil.db_insert_json("ttn", myjson, payload, deveui)
+    lorautil.db_notify("ttn", payload, deveui)
+
+def on_log(client,userdata,level,buf):
+    log.debug("message:" + msg)
+    log.debug("userdata:" + str(userdata))
+
+def on_disconnect(client, userdata, rc):
+    log.debug("reconnecting...")
+    client.reconnect()
+
+if __name__ == '__main__':
+    mqttc= mqtt.Client()
+    mqttc.on_connect=on_connect
+    mqttc.on_message=on_message
+    mqttc.on_disconnect=on_disconnect
+
+    print("Connecting to ttn")
+    username=os.environ['ttn_user']
+    password=os.environ['ttn_password']
+
+    mqttc.username_pw_set(username, password)
+    mqttc.connect("staging.thethingsnetwork.org",1883,10)
+
+    # and listen to server
+    print("Listening via mqtt")
+    run = True
+    while run:
+        mqttc.loop()