Matlab has a "serial" function that allows it to communicate through a serial port. This video gives a simple demo on how to establish serial port connection with the GPIO board and demonstrate communication between the Push Buttons's and Matlab. Serial data’s will be sent from Matlab to Arduino to control the Push Button's. When any one of the 4 buttons are pressed, the corresponding button name is displayed in the Matlab console and this process is done for all the 4 push buttons pressed