Arduino Arbitrary Waveform Generator

Sine triangle pulse and saw each waveshape ranges in frequency from 1hz 50khz.

Arduino arbitrary waveform generator.

Arduino due arbitrary waveform generator. Here i will show you one such waveform generator using linear technology s ltc1450 dac and atmega328 programmed with arduino libraries. It may be to test an amplifier check out a circuit a component or an actuator. Beginner full instructions provided 18 926.

Arbitrary waveform data should be created as a csv file containing one column of data with length 128. Arduino due arbitrary waveform generator project tutorial by bruceevans. 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. The data values should be in decimal whole numbers in the range 0 to 63.

In the lab one often needs a repetitive signal of a certain frequency shape and amplitude. It outputs four waveshapes. Dac output circuitry 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.

Things used in this project. For general usage you can pretty much use any dac chip. This waveform generator is powered by an arduino. This is my arduino based waveform generator using a 8 bit resistor ladder dac.

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. The frequency pulse width and overall amplitude gain of the waveforms is controlled by three potentiometers. Dac schematic design for an arbitrary waveform generator. Powerful waveform generators are available commercially but it is relative.

As well as the gui program the arduino waveform generator can also be controlled by arduino s serial monitor set to 115200 baud. There is a lcd built in that shows the current. 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.

These values when loaded to the arduino uno are converted to hex values between 0x00 and 0x1f and output as arbitrary waveforms. Microcontroller design for an arbitrary waveform generator.