Bluetooth adapter for phone instead of keyboard possible?

Question

Android

Wireless keyboards have bluetooth adapters that do not need to install drivers and so on.

Are there such adapters, only for an android phone to act instead of a keyboard?

(In production there is a lot of equipment with computers under Windows and touch panels, it is inconvenient to carry the keyboard with you)

Answer 1

Will not work. Because the receiver is designed for the keyboard (which was prescribed to it). You can buy a bluetooth module and connect a keyboard from your phone (there are programs).

Answer 2

Buy a mini keyboard with a receiver, like for rasbperi pi
It is the size of a phone, it is emulated as a usb keyboard

Answer 3

There are no adapters that do not need to install drivers, at best they use the drivers already available in Windows.
Keyboards with adapters are usually not bluetooth, but simply radio keyboards and there is a special adapter that pretends to be a standard USB keyboard. Windows thinks that a regular wired keyboard is connected.
In principle, you can make a homemade adapter on an arduino for example.

Answer 4

https://play.google.com/store/apps/details?id=io.a... Pretends to
be a BLE keyboard and mouse
Built-in controllers in fresh laptops and smartphones should see it for themselves.
External dongles need to be checked if they support BLE or not?
On aliexpress
a) "flexible keyboard" from 300 rubles
b) "mini wireless keyboard 2.4 GHz" from 600 rubles