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Author Topic: Arduino 8ohm Small Piezo Speaker: Can you play two Tones at once? Like chords?  (Read 1073 times)
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hooj
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« on: May 06, 2012, 08:17:49 am »
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Arduino 8ohm Small Piezo Speaker: Can you play two Tones at once? Like chords?

Is it possible to do this with just one speaker?
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Grumpy_Mike
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« Reply #1 on: May 06, 2012, 11:50:32 am »
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Is it possible to do this with just one speaker?
Yes, you can have many ones from one speaker look at this project of mine:-
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johnwasser
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« Reply #2 on: May 06, 2012, 12:09:15 pm »
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This third-party Tone library can play simultaneous square waves on multiple pins:

http://code.google.com/p/rogue-code/wiki/ToneLibraryDocumentation

You can connect resistors between the multiple pins and a single speaker to get all tones out of one speaker.
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Nick Gammon
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« Reply #3 on: May 06, 2012, 06:33:03 pm »
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Quote from: Grumpy_Mike on May 06, 2012, 11:50:32 am
Yes, you can have many ones from one speaker look at this project of mine:-

Well, Mike, you can tell you are an engineer. That box looks fantastic. My projects on the other hand look a complete mess. smiley
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http://www.gammon.com.au/electronics

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