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https://github.com/wolfeidau/esp32-blufi

This component provides bluetooth onboarding for the ESP32 boards.
https://github.com/wolfeidau/esp32-blufi

bluetooth esp32 iot wireless

Last synced: about 2 months ago
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This component provides bluetooth onboarding for the ESP32 boards.

Host: GitHub
URL: https://github.com/wolfeidau/esp32-blufi
Owner: wolfeidau
License: other
Created: 2017-03-19T08:28:28.000Z (almost 8 years ago)
Default Branch: master
Last Pushed: 2017-03-20T10:58:21.000Z (almost 8 years ago)
Last Synced: 2024-04-14T22:49:24.372Z (9 months ago)
Topics: bluetooth, esp32, iot, wireless
Language: C
Homepage: https://github.com/wolfeidau/esp32-blufi
Size: 7.81 KB
Stars: 29
Watchers: 6
Forks: 7
Open Issues: 4
Metadata Files:
- Readme: README.md
- License: LICENSE.txt

Awesome Lists containing this project

README

# esp32-blufi

This component provides bluetooth onboarding for the ESP32 boards. It uses bluetooth to delivery the wifi configuration to the device. On top of the existing blufi example in [esp-idf](https://github.com/espressif/esp-idf/tree/master/examples/bluetooth/blufi) it uses Non-Volatile Storage (NVS) to save the credentials and disables the onboarding interface after rebooting, which means it is "closer" to a real demonstration and can be used "as is" in prototypes.

This uses some interesting methods to protect the data in transit between the Android application and the ESP32 and removes the need to HARD CODE the damn wifi credentials in your project code!!

As I understand it it uses Diffie–Hellman key exchange (DH) in conjunction with AES to exchange the wifi information over a GATT connection.

A demonstration esp-idf project is located at [esp32-blufi-demo](https://github.com/wolfeidau/esp32-blufi-demo)

# TODO

* At the moment this example app will NOT expose the bluetooth onboarding once it is setup, this needs to be resettable by HOLDING the EN button for a few seconds, aka Factory reset.
* Once configured the device should be rebooted to disable onboarding, or bluetooth turned off.
* Provide a Arduino example.

# Links

This demo uses the recently somewhat opensourced [EspBlufi](https://github.com/EspressifApp/EspBlufi) Android application. This seems to also share code with [BleLiteLib4android](https://github.com/afunx/BleLiteLib4android).

# License