Arduino Arbitrary Waveform Generator

It may be to test an amplifier check out a circuit a component or an actuator.

Arduino arbitrary waveform generator.

Arbitrary waveform data should be created as a csv file containing one column of data with length 128. There is a lcd built in that shows the current. Sine triangle pulse and saw each waveshape ranges in frequency from 1hz 50khz. Things used in this project.

The frequency pulse width and overall amplitude gain of the waveforms is controlled by three potentiometers. Dac schematic design for an arbitrary waveform generator. Learn how to make your own arbitrary waveform generator using an atmega328p a dds function generator ic an op amp a few passives and some hard work. 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.

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. Arduino due arbitrary waveform generator project tutorial by bruceevans. It outputs four waveshapes. Beginner full instructions provided 18 926.

For general usage you can pretty much use any dac chip. This is my arduino based waveform generator using a 8 bit resistor ladder dac. In the lab one often needs a repetitive signal of a certain frequency shape and amplitude. Arduino due arbitrary waveform generator.

The data values should be in decimal whole numbers in the range 0 to 63. Dac output circuitry for an arbitrary waveform generator. My generator produces an amplified signal and also a unamplified high quality signal. There are a few example wave files in the arbitrary waves folder just for fun to help you get started.

This waveform generator is powered by an arduino. 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. Powerful waveform generators are available commercially but it is relative. Building a very basic arbitrary waveform generator is actually quite simple using a digital to analog converter dac chip and a microcontroller mcu.

Here i will show you one such waveform generator using linear technology s ltc1450 dac and atmega328 programmed with arduino libraries. These values when loaded to the arduino uno are converted to hex values between 0x00 and 0x1f and output as arbitrary waveforms.