<div>In this paper the results of the initial prototype for reading heart sounds are shown, for detecting parameters related to bradycardia, normal rhythm and tachycardia, using the Explorer 16 card Microchip for digital filtering and sending this information via serial for viewing on a PC, through an application developed in Labview. Process which aims to apply conditioning techniques, sampling, hold and signal filtering, to faci-litate medical work in detecting cardiac abnormalities.</div>