I'm wanting to understand what is happening when a device needs configuring with WiFi credentials, but no other communication is apparent.
For example, with the Broadlink RM Mini3 WiFi IR Blaster it's a rather simple process: download and run the required app from the Play store, enter the WiFi details (SSID, Password), turn on the device and click connect within the app. A few seconds later, the device has been configured to run on the relevant network.
By what process is such a device configured when there appears no bluetooth connection etc. that would facilitate the initial connection.