Smart vineyard irrigation
Not every row in a vineyard needs the same amount of water. Soil changes across a block, so some rows dry out days before others. This solar-powered LoRa mesh node reads the soil moisture in its row and switches that row's watering solenoids on and off by itself, independently of the rest of the block. Water only goes where the soil actually needs it, which saves the grower money on water and pumping and stops the wetter rows being overwatered. Each node also relays messages for its neighbours, so the mesh covers the whole vineyard without Wi-Fi or phone coverage.