wireless communication between arduino and relay boards

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as subject suggests, im after way wirelessly communicate between arduino , relay boards.


im running 4 relays off arduino , working perfectly, except want expand project little step further.

i want have arduino board in central location of house (lounge room or bedroom) have relay boards in switch box.
i know use wifi or power on ethernet system don't have wifi or phone lines am, there way complete this?

any appreciated, thanks!

the relay shield needs inputs drive need arduino receive signal main arduino , drive shield.

a radio link want.

weedpharma


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