Urban agriculture allows taking advantage of the free spaces on the roofs, in
such a way that you can have fresh vegetables for consumption. Particularly,
hydroponic cultivation has become a very interesting alternative for vegetable
production using water mixed with a nutrient solution instead of soil. This
paper presents a system architecture, based on the IoT paradigm, for monitoring
variables in hydroponic urban growing. This architecture involves five layers,
and allows monitoring a set of variables that are relevant for this activity.
Based on this architecture, a monitoring system was implemented and then
evaluated through experiments performed on the roof of a house in Peru. The
results show that the system prototype works properly, opening opportunities
for urban agriculture in the region.