Electronic – Sending wifi connection info to an unconnected device

wifi

Is there a way to use a wifi connected device (phone, tablet, PC…) to send the required connection info (SSID, password) to an unconnected device through the same network? I'm prompted to ask the question after reading the following text from this link (http://myube.co/smart-dimmer):

The first time you launch the Ube app, you’ll be prompted to select your Wi-Fi SSID and then to enter your Wi-Fi password (if you have one – and we hope you do.)
The Ube app will encrypt and send this information to the Ube dimmer
The dimmer will join your Wi-Fi network and then you’ll see a notification in the Ube app that a new dimmer was found.

Maybe they are using something other than wifi to send the connection info?

I'm trying to design a device that will have no UI and may not even be user accessible (ie. no QSS button) but will need to connect to the wifi. Is there another way to do this?

Best Answer

From their FAQ:

How do you connect the dimmers to your wifi network?
During setup of your first Ube dimmer, you will need to join the Ube Wi-Fi network. You must provide the SSID and password to your home network one time in the Ube app. When you install subsequent dimmers, the SSID and password information is passed automatically from one dimmer to the next.

Emphasis mine. New dimmers create an access point (AP Mode). Once you join and run the app, they switch into client mode instead.

Other setups, like the WPS some routers, do the opposite. Your Computer creates a specially crafted network name, the router scans it, and the information is picked up that way.