Monitoring room temperature using Arduino

Dobrica wrote a post on his blog detailing the build of his simple temperature monitor using Arduino Nano:

For a last few months, I have been playing around with Arduino and collecting useful parts for my first real project. Last week we purchased Mitsubishi air condition with super-invertor and I wasn’t totally happy with the way it operated so I took several afternoons and tried to understand how temperature in my room was varying depending on it’s settings. To do that, I built simple temperature monitor using Arduino Nano, two temperature sensors and Nokia 5110 screen. This post tries to document my journey…