DEVELOPMENT OF GREEN TECHNOLOGY COFFEE MAKER USING ARDUINO MEGA WITH GOOGLE INTERFACE IOT, LCD TOUCHSCREEN MONITORING, ULTRASONIC SENSOR AND ATS POWER SUPPLY BACK UP. (2026). Ascendens Asia Singapore – Bestlink College of the Philippines Journal of Multidisciplinary Research, 7(1). https://ojs.aaresearchindex.com/index.php/aasgbcpjmra/article/view/15126