Easy DAQ System Development with Arduino and Tri-Axis Accelerometer - Model ADXL335

The main action of data acquisition systems is the sampling signals that measure real world physical conditions (voltage, current) and converting the resulting samples into digital values that can be handled, for example, by a computer. This thesis describes the development of a simple and easy data acquisition system (named EasyDAQ) intended for acquiring the MEMS accelerometer signal. The system uses a Arduino board for converting analog signals to the digital one. This thesis focuses on implementing the digital and analog components of such a device as well as to design the software necessary for sampling, interpreting, vi sualizing and storing the signal. First two chapters will list project aims and the problems to be solved, and give an overview of some of the theories used during the development of the measurement system. Then, thesis will describe how the sys tem hardware was chosen and designed including CAD modeling of enclosure for the Easy DAQ. Next chapter will describe key design considerations for the development of the software used in the Arduino board and GUI in the MATLAB. After that,in the final chapter of the thesis result of test measurements and experimentation using measurement system will be presented.