About this project

Wifi Direct is a R&D project that I initiated at Sully Group.

Sully Group was looking for a way to exchange data between two devices without using bluetooth, which has a limited transfer speed especially in low energy.

I came with the idea of using Wifi Direct, technology available on a lot of new devices equipped with wifi. This technology allows two devices to exchange data directly over wifi, without having to connect under the same network: the communication is ... direct!

When testing the proof of concept I made, using Difi Direct saved a lot of time compared to a standard or low energy bluetooth transfer.


Android Studio




Sending a -large- file with Wifi Direct is way faster and stable than in bluetooth.

Everything can be send using Wifi Direct: bytes, custom class, audio files and even APK.

The application can also send its own APK to the other user: this way, the application can send an update to an other user, even if both of them are offline.

Did you enjoyed this project?

If you enjoyed this project or if you have any questions about it, do not hesitate to send me an email or a message on social networks.