This project aims at the development of fully integrated, small, low-cost, standalone smart system used for grape maturation and vine hydric stress monitoring. It will consist of an optical detection head ( flexible strip or transparent canopy) connected to the grape bunch or looking at the leaf surface, including power, signal pre-processing, and wireless communications. The detection head will be optically based (UV-VIS to NIR) using an integration of LED sources and photodiode/interference filter arrays at wafer level or wafer package level. Reflectance and fluorescence measurements will be used at various wavelengths to probe spectral signatures for phenols flavonols, clorophile (fluorescence),pH and Brix and other parameters. The project concept initially originated from conversations between Sogrape (a major wine producing company with estates in Portugal, Spain, Chile and Australia ) and INL ( project coordinator). Partners with the required know how were then contacted to bring in and incorporate the various components required at wafer level, wafer package level, component level and system level necessary for the development of an electronic smart system. The consortium as a whole will carry the developed systems into field trials and initial scale up. Fig.1 shows schematically the various components being develloped.