Design of function generator using arduino due 12 bit dac

Abstract

Most function generators are composed of analog components, which make the function generator have relatively large dimensions. With relatively large dimensions of the tool, making the tool is not easy to carry everywhere. To make the dimensions of the tool become easier to bring everywhere, the waves generated by the function generator are not made from analog circuits, but are made from digital data stored on the microcontroller and then converted to analog with DAC pins. The method of this research is experimental method. The first thing began with a literature study of the components needed and then continues with the making of system design to generate smaller function generator which can display 4 waves, waves that can be displayed are sine waves, squares, triangles, and sawtooths. The results of the study showed that the function generator was successfully made with smaller dimensions with 10 x 15 cm so that it was easier to carry everywhere and was able to produce sine, square, triangle and sawtooth waves with Vpp of 2.24 volts, Vmax of 2.72 volts, and frequency of 1 KHz.