An autonomous Internet of Things spectral sensing system for in-situ optical monitoring of grape ripening: design, characterization, and operation. - Hugo M. Oliveira; Alessio Tugnolo; Natacha Fontes; Carlos Marques; Álvaro Geraldes; Sophie Jenne; Hans Zappe; António Graça; Valentina Giovenzana; Roberto Beghi; Riccardo Guidetti; João Piteira; et al. (Comput. Electron. Agric., 2024)