This brief tutorial discussed the integration of Matlab 2010a and Arduino Uno development board. Analog signals coming from the sensor (in this case used a light sensor) is processed by the arduino into a digital signal. The signal then transferred by the Arduino via the USB port to the PC. Matlab software is set up to read the data transferred via USB and visualize the results using the "plot" command. This tutorial uses only the Arduino Uno and Matlab without additional software, making it very easy to implement.