DESIGN OF A HELMET THEFT DETECTION SYSTEM USING THE MQTT PROTOCOL AND BLUETOOTH HC-05 BASED ON ARDUINO. JTIF : Journal of Technology Information, [S. l.], v. 2, n. 1, 2025. DOI: 10.71251/. Disponível em: https://jurnalunpi.org/index.php/JTIF/article/view/89.. Acesso em: 4 aug. 2025.