This thesis is part of the promising and fast-growing technology aspect of the "agri-food" sector. With the world's population growing rapidly and climate change posing always increasing risks to farming, food production must be made more efficient and secure. Much work has already been performed in this research field, especially by the MINES Research Group of the Politecnico di Torino under "the Plant Project". The project goal is to develop a self-sustaining monitoring system to be deployed on the field so that the plants that are being cultivated can be supervised autonomously, and the farmers can be remotely provided with the health status of their crops.