“Design and Construction of an ECG Simulator With Bipolar Leads Based on the Arduino Nano Microcontroller”. ENERGY: JURNAL ILMIAH ILMU-ILMU TEKNIK 15, no. 2 (November 30, 2025): 300–308. Accessed February 4, 2026. https://e-journal.upm.ac.id/index.php/energy/article/view/energy.v15i2.15214.