Development of a Portable Spirometer with MPX5500DP Air Pressure Sensor and Atmega328 Microcontroller. JATAED: Journal of Appropriate Technology for Agriculture, Environment, and Development, [S. l.], v. 1, n. 2, p. 41–46, 2024. DOI: 10.62671/jataed.v1i2.48. Disponível em: https://jurnal.lkppl.org/index.php/jataed/article/view/48. Acesso em: 15 sep. 2026.