Chamorro-Atalaya, O. et al. 2025. Usability and Performance Evaluation of a Mobile Application for Learning PID Controllers: A Case Study with Engineering Students. International Journal of Online and Biomedical Engineering (iJOE). 21, 10 (Aug. 2025), pp. 4–21. DOI:https://doi.org/10.3991/ijoe.v21i10.55373.