Install keyboardSwitcher on your machine

In your terminal, run

brew tap lutzifer/homebrew-tap
brew install keyboardSwitcher

Test the installation by running

keyboardSwitcher get

Setup Control Plane

1. Download and install control plane from http://www.controlplaneapp.com
2. Launch control plane, then activate the bluetooth Evidence source.
3. Create 2 contexts:

• English
• German

4. Add two rules to activate the context when the keyboard is present/not present
5. Create shellscripts for every language and save them to a folder, e.g. Documents/Shellscripts in your home folder:

#!/bin/sh
/usr/local/bin/keyboardSwitcher select U.S.

and

#!/bin/sh
/usr/local/bin/keyboardSwitcher select German

and set them to activate when the context gets active in the action pane:

Now, when the keyboard is being connected or disconnected, the corresponding input language is selected.