I am trying to implement a rudimentary song with the Piezo buzzer

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1

I recently got the Cerbot and it has a nice 16 LED panel on the front. So of course, I want to implement the Knight Rider forever progress bar. That part is easy…I also want to play the theme song on the buzzer.

So I adapted helper code from Netduino helper classes to work with the buzzer (http://subversion.assembla.com/svn/3DProjects/MyProjects/Shared/MicroFramework/netduinohelpers/Sound/RttlSong.cs) to be able to play RingTone songs.

However, the CerbotController.StartBuzzer only works for frequency values between 1000 and 2000. All other values produce low-pitch noise.

Am I missing something simple here?

2

this is interesting, I am also looking for some samples for the Gadgeteer Tunes module, I have never heard of the rttl but looks like the way forward

3

The tunes module is one way to go, but I’d rather use the built in Piezo on the board. I tried it again and it just doesn’t process frequencies outside of the 1000 and 2000 Hz.

4

You can turn built-in piezo into a Tunes module, by changing tunes driver a little bit.

5

Can you expand on what you said? How do I do what you just mentioned? And more importantly how do I get it to play frequencies outside of the range (1k - 2k)?

6

Nevermind…noob error. I thought I was on R3 but in reality I was on R2. I updated the firmware on the Cerbot and all is good - the buzzer sounds real good.