Nawawi N, Rusilawati R, Lisdawati AN, Winarno I. Automatic Tube Counter Monitoring System using Infrared Sensor based on NODEMCU ESP8266. eltikom [Internet]. 2023 Dec. 29 [cited 2024 May 16];7(2):170-8. Available from: https://eltikom.poliban.ac.id/index.php/eltikom/article/view/921