As the subject suggests, im after a way to wirelessly communicate between my arduino and relay boards.
Im currently running 4 relays off my arduino and is working perfectly, except i want to expand my project the little step further.
I want to have the arduino board in a central location of my house (lounge room or bedroom) but have my relay boards in the switch box.
I know i could use a wifi or power over ethernet system but i currently don't have wifi or even phone lines where i am, is there a way to complete this?
Any help is appreciated, thanks!