Janeta Wahyu Hidayah, Hari Purwadi, & Ansar Rizal. (2026). Design and Development of an ESP8266-Based Digital Thermometer Using a DHT22 Sensor with OLED Display Output. Journal of Engineering, Electrical and Informatics, 6(1), 92–98. https://doi.org/10.55606/jeei.v6i1.6661