The first time the interrupt is called, it sets the output low, and returns to whatever your program was doing. So tone(PIN,100) will set a timer interrupt to be called every 5ms. 100Hz means the output repeats every 1/100 of a second, or 10ms. The tone() function, which I expect you've run into by this point, outputs a square wave at a specified frequency. I'm not a master at programming, but I'm not a beginner either.Īrduinos offer only digital output: the output is either on (+5V) or off (0V). If not, could you explain it in the clearest way possible. I understand that it involves phase shifts and adding frequencies of notes, but how do you translate this into code for a piezo buzzer? If you could post some example code that would be greatly appreciated. I mean like the bass and treble clef notes are played simultaneously on the buzzer. Is it possible to play the song on a piezo buzzer so it sounds like it's being played on a piano (or at least close to). Now I'm a piano player (I took AP Music theory), and the problem I'm having is that I'm only able to play one note only the piezo buzzer. Using some creative liberties, I found a nice piano piece of this song (link here). What better way to be creative than to use "Firework" by Katy Perry. We learned about creating songs using the piezo buzzer. Enough about that, right now in the class we're experimenting with the piezo buzzer (it looks like this). My high school electronics class decided to buy some arduino uno kits, which I must say are extremely cool.
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