This paper lists and describes all the steps and procedures of making a smart greenhouse, from the idea to the finished model of the autonomous system. At the very beginning, we are introduced to the technologies and components that were used to realise this autonomous system. Furthermore, it will be discussed about the creation of an android application for monitoring and managing the greenhouse with the help of a web tool available to everyone, which does not require prior knowledge in the field of programming. In the practical part of the task, we get acquainted with the creation of the electrical scheme of the system, the drawing of 3D objects that will be created by a 3D printer. We go through all the steps of making a mock-up of a greenhouse, starting with the creation of acrylic glass walls, which must be precisely cut so that each piece can fit in its place at the end. The steps of assembling and manufacturing the printed circuit board on which the ESP8266 NodeMCU micro controller is located will be covered. After the successful creation of the model, the phase of testing the operation of the system is processed.