Over the next couple of days people should be receiving their Netduino Go Piezo Buzzer Modules, at least if they have ordered them from Amazon.

I was lucky enough to get mine very quickly from Amazon and put together a sample project the other night. This is by no means a complex project, and most of it is code from the public domain for projects based on the original Netduino.

Project Overview

So what does the project do? Essentially it plays 3 “tunes” that are predefined in the code. The tunes and most of the code for the project are based on this thread on Netduino.com.

The primary method for interacting with a Piezo Buzzer module is pretty simple, you just need the following three lines.

PiezoBuzzer Pb1 = new PiezoBuzzer(GoSockets.Socket1);
Pb1.SetFrequency(####);
Thread.Sleep(####);

Socket1 would be the location where you have the module plugged in to the Netduino Go. The ### for SetFrequency is a float, 440.00 should be an A where the note C would be 261.63.Duration is an integer in milliseconds, so 1000 would be 1 second. Basically once you set the frequency you tell the program to sleep for 1 second to let the note play out.

The code in the project is a little more complex than that, providing octaves of notes and their frequencies, as well as the ability to pass in an array of notes and tempo to adjust for speed/duration.

Download the code

But enough of that, how about a video of it in action?

Other Netduino Go Projects

Be sure to check out some of my other Netduino projects and blog posts.

• Building a Netduino Tank
• Simple Netduino Go Tutorial Flashing RGB LEDs with a potentiometer