This tutorial provides a step-by-step guide to creating an IoT Twitter bot using Functions and the PubNub SDK, which allows for automated interactions with Twitter via its API. The tutorial explains the concept of a Twitter bot and its applications, such as tweeting real-time data from IoT devices, and highlights the benefits of using Twitter for globalizing IoT data. A practical example is given using a Raspberry Pi and a temperature/humidity sensor, demonstrating how to configure the sensor, enable SSH for remote access, and install necessary libraries. The tutorial details integrating PubNub to publish sensor data to a Twitter account, including setting up a GitHub repository for code management and utilizing SSH to transfer and run the code on the Raspberry Pi, effectively showcasing the ease and usefulness of combining IoT devices with social media platforms like Twitter.