Design of Unmaned Surfaces Vehicle System Based on Coordinates and Internet of Things for Semi Automatic Shrimp FeedingFeri Adriyanto, Mohd Zainizan Sahdan, Muhammad Hasya Nurfaiz and Joko HaryonoE3S Web of Conf., 465 (2023) 02071DOI: https://doi.org/10.1051/e3sconf/202346502071