Arduino Uno board has a microcontroller named
ATmega328. For programming the microcontroller, integrated
development environment provided by the Arduino platform is
used. For visualizing and storing the signal an application is
developed by Processing. Processing is an open source
programming language and integrated development
environment (IDE). It builds on the Java language, but uses a
simplified syntax and graphics programming model and
available for Linux, Mac and Windows operating system. For
receiving the signal data serial library of processing is used. In
processing line() function is used for visualizing the signal and
println() function is used for sorting the signal, which creates a
txt file and saves the values received from Arduino ADC [13].
V. EXPERIMENTAL MEASUREMENTS AND RESULTS
Figure 5 shows the experimental measurement performed
by us for ECG signal and the prototype biosignal acquisition
system.