Design and Development of a Color Picker System to Integrate in POC Device Systems Caterina Serafinelli, Alessandro Fantoni, Miguel Tavares Fernandes, Elisabete C.B.A. Alegria and Manuela Vieira EPJ Web Conf., 305 (2024) 00007 Published online: 15 October 2024 DOI: 10.1051/epjconf/202430500007