Install EnOcean on Raspberry Pi

First of all you have to connect the EnOcean Pi to the Raspberry. Do this before powering up the Raspberry Pi. The serial port of the GPIO must be disable (it's normally used for console debugging in standard configuration). Tio achieve this, you have to do the following commands:

wget https://raw.githubusercontent.com/lurch/rpi-serial-console/master/rpi-serial-console
chmod +x rpi-serial-console
sudo ./rpi-serial-console status

If the returned message is Serial console on /dev/ttyAMA0 is disabled you don't have to do anything, else, you have to do:

sudo ./rpi-serial-console disable

As an example, to be able to test if your environment is well configured, you can install Fhem. Do the following to achieve this.

sudo apt-get install perl libdevice-serialport-perl libio-socket-ssl-perl libwww-perl
sudo apt-get install -f
wget http://fhem.de/fhem-5.6.deb
sudo dpkg -u fhem-5.6.deb

To display the web interface of fhem, you can connect to the Raspberry on 8083 port.

http://<RaspberryIP>:8083/fhem