Scripts and other stuff around my Raspberry Pi Cluster for Distributed Programming and Networking with various Languages, e.g. Python, Java, etc
Download Raspbian Stretch Lite image and flash that to your Micro SD cards for your Raspberry Pi with Etcher.

Default login is
passwd and set password for root with sudo passwd.sudo raspi-config
In case raspi-config did not work out:
Scan list
sudo iwlist wlan0 scan
Configure connection
sudo nano /etc/wpa_supplicant/wpa_supplicant.conf
Get IP from Router
wpa_cli -i wlan0 reconfigure
Scan with nmap for pi nodes