Adquisición de señales balistocardiográficas con Arduino

Abstract

The noninvasive Balistocardiogram (BCG) signal is the recording of body movements due to heartbeat and blood flow through major arteries. This signal provides enough information to calculate the heart rate and its variations over time. The present paper proposes the design of a prototype of a low-cost electronic system to record the BCG signals acquired by means of a triaxial accelerometer and gyroscope. For the design of the system, an Arduino development board, the 9-axis MPU-9250 sensor (accelerometer, gyroscope and magnetometer), and the free software RealTerm are used. The system is connected by a USB port to a personal computer from where the entire system is governed. A model of the system was built and tested successfully with arbitrary signals, checking the correct functioning of the system and recording the data in a text file for later analysis.