Azwati Azmin, Aiza Mahyuni, Zafirah Faiza, Najwa Rawaida Ahmad, Rabiatul Adawiyah Akhbar, and Wan Mohd Yusof Rahiman, “HC-05 PROTOCOL IOT BASED FOR SMART WEARABLE HEART-RATE MONITORING SYSTEM WITH BLYNK APPLICATION”, JISED, vol. 7, no. 46, Jul. 2022.