wiki for RaspberryPi
Download Raspbian latest release on : https://www.raspberrypi.org/downloads/raspbian/
Format SD card, and flash it with Etcher (https://www.balena.io/etcher/)
Active SSH: add a file named ssh (without extension) in the boot partition.
To use z-wave on rpi3, disable bluetooth by adding this line in /boot/config.txt :
dtoverlay=pi3-disable-bt
To improve the available current over USB, in /boot/config.txt: max_usb_current=1
The default login for Raspbian is pi with the password raspberry.
ssh pi@ip_adress