Arbitrary Waveform Generator Arduino

Arbitrary waveform data should be created as a csv file containing one column of data with length 128.

Arbitrary waveform generator arduino.

For general usage you can pretty much use any dac chip. 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. In the lab one often needs a repetitive signal of a certain frequency shape and amplitude. The data values should be in decimal whole numbers in the range 0 to 63.

This is my arduino based waveform generator using a 8 bit resistor ladder dac. Arduino due arbitrary waveform generator. There are a few example wave files in the arbitrary waves folder just for fun to help you get started. 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. Finally let s prove that we can produce arbitrary waveforms. Here is a house with a chimney at 50khz. Beginner full instructions provided 18 926.

The code above is the basis for an adruino due powered arbitrary waveform generator that meets the stated requirements. The difference between arbitrary function generators and arbitrary waveform generators may 11 2018 by david herres leave a comment signal generators are subdivided into categories that include arbitrary function generators afgs and arbitrary waveform generators awgs. These values when loaded to the arduino uno are converted to hex values between 0x00 and 0x1f and output as arbitrary waveforms. 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. Microcontroller 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. Things used in this project.

As well as the gui program the arduino waveform generator can also be controlled by arduino s serial monitor set to 115200 baud. My generator produces an amplified signal and also a unamplified high quality signal. 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. Dac schematic design for an arbitrary waveform generator.

Dac output circuitry for an arbitrary waveform generator.