Whether you are building a green house monitoring system with sensors measuring temperature and humidity, or a medical wearable that relays information about your body to your mobile device, you will be going through a common set of IoT pain points. This article will walk through all of them and show how a Data Stream Network like PubNub will help solve the above challenges.

Using a Raspberry Pi, an Arduino and an Atmel device, I am measuring temperature and humidity and plotting them in a realtime updating graph.