Update README.md

Author: deepcoder

README.md

@@ -1,5 +1,16 @@
 # sensor-server-monitor
-Python program to check of bluetooth sensor data is being received in MQTT, if not send PushOver alert and reboot the server doing the BLE advertising monitoring
+Python program to check if sensor data is being received in MQTT, if not send PushOver alert and reboot the server doing MQTT publishing.
+
+target server IP address, user and password are currently hard coded in application, see these variables in code:
+
+```
+REBOOT_SERVER = "192.168.1.42"
+REBOOT_USER = "pi"
+REBOOT_PASSWORD = "raspberry"
+REBOOT_COMMAND = "sudo reboot"
+```
+
+The MQTT server IP address and MQTT topic are stored in a .yaml file. Also the login info for 'pushover' notification service is stored here as well. If you do not have a rsyslog server, you can either set a blank IP address, or just leave, the program will write local log files, either way.
 
 The BLE c program to receive the BLE advertising packets from the temperature sensors has been pretty reliable, however there are events that seem to make the bluetooth stack burp. And the c program does not recover. So this Python 3 program monitors the output of that c program to MQTT. If no MQTT data is received from any of the sensors under the MQTT topic, then action is taken.