diff --git a/README.md b/README.md
index 007460c..d8d885f 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,6 @@
 # Python scripts for IoT stuff
 
 README missing
+
+TODO:
+* pushover on alarm
\ No newline at end of file
diff --git a/lgt92.py b/lgt92.py
index 5facbc6..87bd192 100644
--- a/lgt92.py
+++ b/lgt92.py
@@ -3,6 +3,7 @@ import json
 import os
 import logging
 import signal
+import requests
 from datetime import datetime
 from influxdb import InfluxDBClient
 from dotenv import find_dotenv, load_dotenv
@@ -18,6 +19,7 @@ DST_INFLUX_HOST = os.getenv("DST_INFLUX_HOST")
 DST_INFLUX_USER = os.getenv("DST_INFLUX_USER")
 DST_INFLUX_PASS = os.getenv("DST_INFLUX_PASS")
 DST_INFLUX_DB = os.getenv("DST_INFLUX_DB")
+HC_PING_URL = os.getenv("HC_PING_URL")
 
 OT_TOPIC="owntracks/tobru/dragino"
 OT_TID="dragino"
@@ -35,7 +37,10 @@ def on_publish_ot(client, userdata, rc):
 def on_log(client, userdata, level, buf):
     logging_level = mqtt.LOGGING_LEVEL[level]
     logging.log(logging_level, buf)
-    logging.info("got a log message level %s: %s", level, str(buf))
+    #logging.info("got a log message level %s: %s", level, str(buf))
+    if "PINGRESP" in str(buf):
+        # report to https://healthchecks.io to tell that the connection is alive
+        requests.get(HC_PING_URL)
 
 # The callback for when a PUBLISH message is received from the server.
 def on_message_ttn(client, userdata, msg):
@@ -46,6 +51,9 @@ def on_message_ttn(client, userdata, msg):
     # max is 4 volts, 3 volts is considered empty
     batpercent = round((data["payload_fields"]["batV"] - 3) * 100)
 
+    if data["payload_fields"]["alarm"]:
+        print("ALARM button pressed")
+
     if "latitude" in data["payload_fields"]:
         # transform received data into OwnTracks format
         ot_data = json.dumps({
@@ -64,6 +72,9 @@ def on_message_ttn(client, userdata, msg):
         client_ot.publish(OT_TOPIC,ot_data)
     else:
         logging.info("no GPS data / latitude present")
+        # set GPS data to 0 for InfluxDB
+        data["payload_fields"]["latitude"] = 0.0
+        data["payload_fields"]["longitude"] = 0.0
 
     # write to influxdb
     logging.info("writing data to influxdb")
@@ -111,6 +122,8 @@ if __name__ == '__main__':
         datefmt='%Y-%m-%d %H:%M:%S %Z'
     )
 
+    logging.info("Starting ioteer lgt92. V1.0")
+
     # Prepare InfluxDB
     influxdb = InfluxDBClient(
             host=DST_INFLUX_HOST,