Thanks for sharing your project! What a smart idea
My electric meter is in the cellar and without wall outlet. A battery powered sensor would be perfect solution for this situation.
I hope have you have some pcb's available causeI like to build one. Please give me a PM?

So cool :lol: , playing around with ESP8266 and Domoticz,

I made this video:

http://i49.photobucket.com/albums/f261/whenim641/Domoticz/th_WP_20151205_001_zpsmq6nycuc.mp4

In Domoticz I created a virtual device with 2 Actions:

On Action: http://ip your ESP8266/control?cmd=GPIO,0,1
Off Action ...

Yes I've got it

1. Yes, it's the same IP
2. Dashboard > Switches >Edit your ESP switch > On Action: http://<IP>/control?cmd=GPIO,0,0. Off Action: http://<IP>/control?cmd=GPIO,0,1

regards,

Really nice project, thanks for sharing.

Still missing some information about the connection with Domoticz:

I did this tutorial:
Using the ESP Easy as a simple input switch in Domoticz
http://www.esp8266.nu/index.php/Tutorial_Domoticz_Switch

I've uploaded the code and configured the esp8266 ...