I started a project with Mysensors to automate some parts of my home, I made the first gateway with Arduino and an ethernet shield.
My goal was to have a 220V controlled by Vera Lite.
What you need:
-Arduino Nano
-Radio module NRF24L01 +
-capacitors
-resistances
-breadboard thousand holes
-Relay Module 10A
-cables and plugs
The wiring diagram.
is important to the condensoatore of VCC and GND of the radio to the stability and the good reception of the same.
Here's my self-built PCB
we put it all in a box of Gewiss 8cm x 12 cm
We insert the power supply
finally finished work:
Vera display
Link code
Thanks to All