Melgarejo, Yanco, Bryan Perez Garcia, Maria Fernanda Monroy Mendoza Melgarejo, Jarett Jaesny Ramirez Alvarado, Jairo Alejandro Gutierrez Paredes, Javier Hernández Pérez, and Evelin Gutierrez Moreno. 2026. “Closed-Loop Control and Sensor Noise Reduction in a Low-Cost Aerodynamic Pendulum Using Digital PID and Kalman Filtering on Arduino Mega”. International Journal of Combinatorial Optimization Problems and Informatics 17 (1):34-47. https://doi.org/10.61467/2007.1558.2026.v17i1.1137.