Who doesn't like to do pranks? This project is very easy. Also if you are looking into rubber ducky's then this might also be what your looking for. I can see with this that you can uses this for good or evil. You could pare the Simblee with a SD card and make it send different keystrokes by reading a file and have it send the serial information to the Arduino Micro to do pre-programmed task buy reading the file but this is not the project. Plus, you could uses the Simblee com send to mulltiple simblee device and control up to 5 computers at one time.
For the people who don't know a rubber ducky is a keystroke injector. It acts like a keyboard or mouse to do a task. It can be used to do power shell scripts or command prompt commands or even program a file to be open like a.bat file.
Well the chip set that I used that is the Simblee is gone, but I am just posting it for what is worth. This was cool never got everything done with it that I would like.
The Second Device -- TXB0104 Bi-Directional Level Shifter
Wiring the USB
Desoldering the Boards
The Last Device - BLE Wireless Device That Does All the Easy Work
Warning: if you do this and keep the iron on the board too long it could damage the board. 3D-Printed PartsWiring
The wiring is real easy the power will come from the Arduino Micro that will power the Simblee BLE with 3v3. The 5v power pin will be hooked up to 5v HV side of the TXB0104 and the 3v3 will be hooked up to the 3.6v LV side.