Making Raspberry Pi to work with MQTT.
step by step guide on mqtt
Pre-requisites: Have Raspberry Pi. Raspbian OS installed and WiFi / LAN cable connected to your router and have an IP address to connect it to. If you have not installed Raspbian, head over here and install it on SD Card and boot it. Connect to your Raspberry Pi via Putty Client on Windows or Terminal on Mac / Linux
Let us see what is the debian version we have