setup_schematic.txt

PART I
esp8266 ---> if 
  |             moisture detected, publish value 1 to topic "leak_basement"
  |          else   
  |             publish value 0 to topic "leak_basement"
  V
Moisture detector.

PART II

Publish broker msgs happen on Raspberry Pii at 192.168.0.101 where
mosquito Broker server is running.

PART III
Use script in this project to check ( subscribe to topic "leak_basement" ) if we find value=1. 

if value=1, then as per Part I, there is leak. So script will notifly iftt and/or shutoff main valve...etc