How much access to hardware and device functionality does unity3d provide?

Question

Mobile development

To be specific, is there access to bluetooth, wi-fi direct, microphone (for example, is it possible to make voice chat via bluetooth, wi-fi direct).
More generally, what are the limitations in general in unity3d? Is it possible to make any application on it that can be done natively?

Answer 1

There is access to the microphone, though not very good, for everything else there are plug-ins. If your application should have a lot of native interfaces, then you will have to tinker a lot, but it is also possible. Unity works well where everything is common or similar for different platforms: graphics and input tools. If you want to use specific ios or android features, such as detecting when silent mode is enabled, you will need plugins with native code for each platform, but it is likely that they have already been written. There are no restrictions, you can run any code that the operating system allows you to run, there are just things that are more difficult to do.