IoT(Internet of Things) based room temperature monitoring system. Here I will use esp8266 to connect to the internet.
According to its developers, "ThingSpeak is an open source Internet of Things (IoT) application and API to store and retrieve data from things using the HTTP protocol over the Internet or via a Local Area Network. ThingSpeak enables the creation of sensor logging applications, location tracking applications, and a social network of things with status updates
Check my instructable http://www.instructables.com/id/IoT-Based-Temperature-Monitoring-System/