The delay of a sensor is the update time of the sensor. For example if a Temp sensor is set to 5 seconds delay, it will report temperature to the controller every 5 seconds.

To set the impulses per kw/h in Domoticz you have to go to Settings tab and then to Meters/Counters tab and change the default values. In my case I have 125 impulses per kw/h.

hm... Thank you it works now. But in the wiki, it says to connect just the 4 pins, why is that?

HI guys. I am using SSD1306 128x64 display by TinySine. I am using easyesp r48 on nodemcu v1(also tried it on adafruit huzzah feather, same sh^t) This is the image i get on the screen. Can you give me any suggestions why is the screen displaying this?

PS: The display works with Raspberry Pi