This work aims to study and implement a home automation system where it s possible to control remote devices like servo motors, leds, lights and have in hands important data about your house, like temperature, humidity, rain and vibration providing alerts through a smartphone. This project is divided in three parts: the first one is a mobile app with a friendly interface, the second one is a server responsible to validate web requests and interact with external services, eg: the Firebase Cloud Messaging. The last part is the nodeMCU microcontroller itself connected to multiple devices and sensors.