WIRELESS STETHESCOPE

WIRELESS STETHESCOPE

ABSTRACT

Stethoscope is a special device to hear heartbeat sound and monitor pulmonary disease. The most type of stethoscope used these days is the acoustic stethoscope. However, the problem with this acoustic stethoscope is the sound level very low. It is hard to analyze the heart sound and difficult to be diagnosed by a medical doctor. Therefore, this project was developed to monitor and display heartbeat sound using wireless digital stethoscope. This is why several forms of digital electronic stethoscope have been developed to replace the conventional acoustic stethoscope. Basically, the purpose of digital stethoscope is to improve the sound resolution, allow variable amplification, minimize interference noise and simplify the output signal. Here in this project, a microphone is used as a sensor to capture the low sensitivity of heart sound signal and transmit the signal using Zigbee Module. This wireless stethoscope will be verified and shows the data of heartbeats as a result for the counting of heart rate per minute. A buzzer is used to indicate the critical changeovers. Micro controller ATmega 328 is used as a platform to process the signal and sent the result to the display unit.

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