Arduino Nano Waveform Generator

Nano + Code = Function Generator

Labs Project

Based on a Labs project | November 2022 | Find it here

This is not a full-blown DIY project with PCB. Perhaps the most appealing aspect of this project is the firmware and the peripheral code library, which contain many useful techniques for real-time embedded applications, developed by a professional engineer with decades of industry experience.

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Materials

AVRDUDE on GitHub

Project downloads at Elektor Labs

ATmega328P Datasheet

Microchip Studio

Getting Started with Microchip Studio

firmware.zip

Components

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Discussion (0 comments)

robral 1 year ago

Thank you for this project, which included the .hex file.

I learned how to install and use avrdude on both my iMac and on Windows 11 Home (running on my iMac under Parallels), and did a successful upload to 2 nanos.

I have breadboarded the nano, buttons, and LCD. My scope shows the PWM signal on D5. I did not know that various signals can be generated from a PWM signal. It will be interesting to learn how that happens.

Thanks again, Robert

img-1211.JPG (301kb)

J.F. Simon, Elektor 1 year ago

Hello Robert, thank you for your comment! It's great to hear that you got it working! Signal generation is a fascinating topic. You may be interested in having a look at this project's page on Elektor Labs : https://www.elektormagazine.com/labs/nano-waveform-generator , there are interesting documents that explain how it works, as well as the full source code if you want to study it. The author of this project used the PWM + filtering approach, another interesting technique to generate waveforms is called "direct digital synthesis" or DDS, which is also a very interesting topic. Enjoy, and Happy New Year! Regards, Jean-François