Precision agriculture is a type of innovative agriculture, based on new technologies, which aims to streamline the agricultural process. The aim of this paper consists in reducing the consumption of resources and reaching the maximum potential of the harvest, providing a smart greenhouse which automatically improves the quality of the culture. Environmental parameters will be measured through several sensors and depending on the data set, the system will decide and control the appropriate climate conditions for each crop. The data will be transmitted through the Message Queuing Telemetry Transport (MQTT) protocol to an android application which allows the user to view and set the environmental conditions.