At operation of the sensor of gas, the relay blocks gas and disconnects electricity in the house.
The message sends to e-mail.
Later I want to add still various sensors.
Hi again @sin-in-cyn36 ,
Are you aware of home automation contest going on right now? This project qualifies for the contest! ... Lots of cash prizes. Did you want to post this project as an entry into the contest??
I submitted this project into the category for you Goodluck! I will be sending all projects to the judges soon.