Wireless Communication, Standby

Projects General Guidance
1

Hi there!
I'm trying to transfer very few amounts of data wirelessly from one arduino to another (two way communication). The problem is, it should work flawlessly at home which means distances of some rooms or evene floor to floor.

But i have no idea which communication type suits best. Wlan, Bluetooth, "radio" (sorry don't know the exact english term).
I think wlan (adhoc- device->device) would be the best way, but i'm not sure if there are better solutions, any ideas?

The amount of data which needs to be transfered are just a few bits for example todays date on one side, whereas the other just needs to transfer some sort of OK.
(for explanation: Todays date is being send from arduino1 to arduino2, arduino sends OK to arduino 1 if user input on a numpad equals todays date)

greetings :slight_smile:

2

NRF24L02 radio is too limited (range and data size)
Bluetooth range too short for room to room.
Wifi (depends on the distance. We don't know how big your house is (max distance) and without a repeater/extender the range may not be enough. I use wifi from garage to furthest bedroom but have extender at the bedroom .