Most of the wireless Home automation system having WiFi or Bluetooth have a single CPU operation. Single CPU operation leads to same room automation or has less range.
But using two or more evive we can achieve a long range of automation and less implementation cost. Using two or more CPU connected wirelessly via WiFi is known aa multi-node operation.
In this tutorial, we are implementing multinode wireless home automation which means you can control N numbers of points from the same place.
In this case, we are using two evives to demonstrate two rooms in a house. controlled by attached buttons or wireless remote.