Minh-Hai Le, Duc-Toan Nguyen, Huu-Phuc Dang, Song-Toan Tran, Phuong-Thao Cao. A LIGHTWEIGHT MACHINE LEARNING APPROACH FOR ALCOHOL CONCENTRATION ESTIMATION USING AN ESP32 AND MEMS GAS SENSOR. HUIT_OJS. 2026;26(2E):471. doi:10.62985/j.huit_ojs.vol26.no2E.420