How connect two devices with bluetooth to send app android unity c#

Hi everyone!
I’m developing an app for Android with unity 3D. I need that i include script in my actuel script to send app via bluetooth to another device for making vibration ( my app it turn on active vibration using smartphone coding by c#)

please give me the suggestion.

I just released a new plugin in the asset store for doing bluetooth networking between android and ios devices. This might work for what you want to do: