Design of a low-cost environmental monitoring system for real-time control and recording of key environmental parameters in the extractive industry - Eduardo Conde Lázaro, Eduardo De Miguel García, Fernando Barrio Parra, Miguel Izquierdo Díaz, Luis Jesús Fernández Gutiérrez Del Álamo, Luis Felipe Mazadiego Martínez, Humberto Serrano García, Pablo Reina Peral (2025)