Arduino Arbitrary Waveform Generator

Arduino due arbitrary waveform generator project tutorial by bruceevans.

Arduino arbitrary waveform generator.

The frequency pulse width and overall amplitude gain of the waveforms is controlled by three potentiometers. For general usage you can pretty much use any dac chip. Building a very basic arbitrary waveform generator is actually quite simple using a digital to analog converter dac chip and a microcontroller mcu. Things used in this project.

Powerful waveform generators are available commercially but it is relative. Microcontroller design for an arbitrary waveform generator. Dac schematic design for an arbitrary waveform generator. It runs with a sampling rate of 65536 hz and can create any whole number frequency from 1 hz to 30ish khz in sine wave sawtooth triangle and different ratios of square wave.

My generator produces an amplified signal and also a unamplified high quality signal. This waveform generator is powered by an arduino. The data values should be in decimal whole numbers in the range 0 to 63. As well as the gui program the arduino waveform generator can also be controlled by arduino s serial monitor set to 115200 baud.

Arbitrary waves can be drawn edited saved opened and uploaded to the due via usb or the due can run alone controlled by pots switches. In this article we will learn how quickly and easily we can build our own function generator using arduino this function generator a k a waveform generator can produce square wave 5v 0v with frequency ranging from 1hz to 2mhz the frequency of the wave can be controlled by a knob and the duty cycle is hardcoded to 50 but it is easy to change that in the program as well. Arbitrary waves can be drawn edited saved opened and uploaded to the due via usb or the due can run alone controlled by pots switches. There are a few example wave files in the arbitrary waves folder just for fun to help you get started.

There is a lcd built in that shows the current. Arduino due arbitrary waveform generator. Sine triangle pulse and saw each waveshape ranges in frequency from 1hz 50khz. Beginner full instructions provided 18 926.

Dac output circuitry for an arbitrary waveform generator. It may be to test an amplifier check out a circuit a component or an actuator. These values when loaded to the arduino uno are converted to hex values between 0x00 and 0x1f and output as arbitrary waveforms. Here i will show you one such waveform generator using linear technology s ltc1450 dac and atmega328 programmed with arduino libraries.

This is my arduino based waveform generator using a 8 bit resistor ladder dac. It outputs four waveshapes.