An IoT system consists of sensors/devices which "talk" to the cloud through some kind of connectivity. Once the data gets to the cloud, software processes it and then might decide to perform an action, such as sending an alert or automatically adjusting the sensors/devices without the need for the user. This practical guide about Firebase IOT, describes how to integrate Android Things with Firebase. To accomplish this integration, we will build a project that controls a Robot motors remotely in real time. The final goal is to control the robot connected to Android Things with and Android app installed on smartphone using Firebase as the link between them. This project demonstrates, moreover how it is possible to exchange real-time data between Android Things and Firebase.