Jasman H, Anita, Samsuar. Portable Vital Sign Device With SpO2 And Heart Rate Parameters Equipped With ESP32-Based TFT Screen. JTEMP [Internet]. 2025 Jun. 9 [cited 2026 May 26];6(1):9-16. Available from: https://journal.polbitrada.ac.id/index.php/Jtemp/article/view/103