The definition of the Internet of things (IOT) refres to the easy connection of objects and devices with other devices to facilitate daily routines. The focus of this paper is on the regulation of the internal temperature and humidity of the model of a small greenhouse which is remotely controlled for the purpose of changing the desired parameters or system failure. The operation of the device is based on comparing the collected values from the sensors with the desired environmental values already set. The desired temperature and humidity values are entered in the program, and the fans and pumps have the function of keeping these values constant. The control is performed via a Web application that displays the current values of temperatures and humidity, as well as the control of pumps and fans with the option to set manual on or off. Following hardware was used: Raspberry PI, plastic box, power supply, temperature and humidity sensors, pump, heater and other electronic hardware. The Cayenne web application was used to create the web application. The result is a remotely managed functional system system composed of multiple components that can communicate with each other. The greenhouse system is designed and built with selected components due to its simplicity, low cost and the possibilities it provides. The example of the given solution shows that very precise microclimate control can be performed remotely with the help of a computer system.