Perancangan Konversi Meteran Air Analog ke Digital dengan Optocoupler Berbasis Mikrokontroler NodeMCU ESP8266. Journal of Digital Technology and Computer Science, [S. l.], v. 1, n. 1, p. 38–42, 2023. DOI: 10.61220/digitech.v1i1.20233. Disponível em: https://journal.lontaradigitech.com/Digitech/article/view/84. Acesso em: 1 sep. 2025.