L.V.Rajani Kumari¹ , Y. Padma Sai² and N. Balaji^3
1,²VNR Vignana Jyothi Institute of Engineering and Technology and ³Jawaharlal Nehru Technological University, India

The heart rate is to be monitored continuously for the heart patients. This paper proposed a system that awakes to monitor the heart rate condition of the patient. This work includes two parts. 1) We developed an application to monitor the patient’s heart beat and if the heart beat is abnormal, a message should betransmitted to the doctor using 3G shield. Thus, doctors could monitor the patient’s heart rate condition continuously and suggests few earlier precautions to the patient. The heart rate is detected by using photoplethysmograph (PPG) technique. 2) The Arduino wireless communication is developed in such a way that it performs voice calls, sends SMS by interfacing with 3G shield using AT commands. One of the input given is a user specified number to be dial and the expected output is voice call should be successfully performed. Here the program is written in such a way that there are many options available like dynamic call, emergency call (police, ambulance, and fire), sending message, receiving call, Disconnect a call, Redial, Forward message.

PPG, 3G shield, Arduino, SMS, AT commands.