Blue Pie Apps use bluetooth to communicate with Raspberry Pi or linux-based devices.
Use a phone or tablet to control a Raspberry Pi, or set parameters on the Raspberry pi,
only using using bluetooth (no wifi needed, no usb cable needed).
BTBerryWifi : Set the wifi network on your (headless) Raspberry Pi, using only Bluetooth. (see details)
See it in the store:
iOS,
Android,
or search for: BTBerryWifi , on your app store.
It is necessary to first install the bluetooth python code
on your Raspberry Pi (or compatible linux device).
It is Free (as in beer). And open-source.
Instructions (ReadMe) and an automated install script can be found on GitHub:
RPi-SetWifi-viaBluetooth.
Or see Installation requirements on the Raspberry Pi".