![]() ![]() When played in the right order and for the right duration (by an experienced musician) they can create music. Musical notes are simply sounds of specific frequencies. #PIEZO BUZZERS HOW TO#Now that we have learned how to switch the buzzer on and off, let’s play musical notes! Step 4: Tone function to play musical notesīefore we play musical notes, let us quickly understand what they are. If the problem persists then try replacing the buzzer with an LED (keeping the polarity right) and if the led works, then you can know for certain that fault is in your buzzer and not the circuit or code. #PIEZO BUZZERS CODE#If your buzzer does not work then make sure your code is alright and it is firmly connected the the board. You can upload this to the board and play with the delay a bit to get different beeps. I then set the pin to output by saying pinMode(buzzpin, OUTPUT) and then change its state over and over again from on to off and back every half a second. This is the pin which controls the buzzer, make sure you assign it the same value as the pin your buzzer is connected to. In the first line, I create a variable buzzpin and give it a value of 13.
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