How to use the Netduino Go Piezo Buzzer Module
Originally posted on ChrisHammond.com
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.
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.