I found out that the port configuration of the Raspberry Pi-3 is different as the one's before!
Has someone a working version with the Raspberry PI-3, or what changes are be made th get it running.
These are the new settings, and the example are using "/dev/ttyAMA0"

/dev/ttyAMA0 -> Bluetooth
/dev/ttyS0 -> GPIO serial port.

Thanks for any help.

Jan