To install the desktop version of the KniwwelinoBlockly:
Kniwwelino\KniwwelinoBlockly folder.KniwwelinoBlockly_run.batEdit > Preferences and change:Kniwwelino\arduino-1.8.5 and select the arduino_debug.exe.Do the following steps to find out the COM port of your Kniwwelino:
USB-SERIAL CH340 listed under Ports (COM & LPT). The COM port number is written in parentheses behind.In case you don't find a new serial device in the Device Manager after plugging a Kniwwelino to your PC. You should install the driver that is included in the downloaded folder of the KniwwelinoBlockly.
Depending on your account rights you maybe have to start CH341SER.EXE as an administrator.
After launching a window like this should open and by pressing the install button the driver will be installed.