Arduino Arbitrary Waveform Generator

The data values should be in decimal whole numbers in the range 0 to 63.

Arduino arbitrary waveform generator.

In the lab one often needs a repetitive signal of a certain frequency shape and amplitude. For general usage you can pretty much use any dac chip. It may be to test an amplifier check out a circuit a component or an actuator. Here i will show you one such waveform generator using linear technology s ltc1450 dac and atmega328 programmed with arduino libraries.

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. Dac schematic design for an arbitrary waveform generator. Building a very basic arbitrary waveform generator is actually quite simple using a digital to analog converter dac chip and a microcontroller mcu. This is my arduino based waveform generator using a 8 bit resistor ladder dac.

This waveform generator is powered by an arduino. Sine triangle pulse and saw each waveshape ranges in frequency from 1hz 50khz. As well as the gui program the arduino waveform generator can also be controlled by arduino s serial monitor set to 115200 baud. These values when loaded to the arduino uno are converted to hex values between 0x00 and 0x1f and output as arbitrary waveforms.

It outputs four waveshapes. 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. 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 waveform data should be created as a csv file containing one column of data with length 128.

Beginner full instructions provided 18 926. 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. Arduino due arbitrary waveform generator.

Microcontroller design for an arbitrary waveform generator. Things used in this project. My generator produces an amplified signal and also a unamplified high quality signal. Powerful waveform generators are available commercially but it is relative.

Dac output circuitry for an arbitrary waveform generator. Arduino due arbitrary waveform generator project tutorial by bruceevans.