Closed-Loop Control and Sensor Noise Reduction in a Low-Cost Aerodynamic Pendulum Using Digital PID and Kalman Filtering on Arduino Mega. - Yanco Melgarejo; Bryan Perez Garcia; Maria Fernanda Monroy Mendoza Melgarejo; Jarett Jaesny Ramirez Alvarado; Jairo Alejandro Gutierrez Paredes; Javier Hernández-Pérez; Evelin Gutiérrez-Moreno (Int. J. Comb. Optim. Probl. Informatics, 2026)