I just made a sketch using simple code to make a buzzer output a tone (based on the 'blink' and the 'blink without delay' examples). However when I connect the buzzer to the arduino the sound is quite different depending on which function I use. By using the 'blink method', the beep is quite clear, …

Using 'blink method' and 'blink without delay method' to make tones.

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