Problem with buzzer on Arduino Nano

Other Hardware General Electronics
1

Hi Guys

I bought this buzzer Recommendations For You - DealeXtreme and I connected to digital pin #3, + to 3.3V and - to grn. I did not use any resistors. To be honest I do not know do I need use resistor :frowning:

This is code I used:

int ledPin = 3;                
void setup()
{
  pinMode(ledPin, OUTPUT);     
}

void loop()
{
  digitalWrite(ledPin, HIGH);   
  delay(1000);                  
  digitalWrite(ledPin, LOW);    
  delay(1000);                  
}

I have sound but I'm not happy with that. I attach sound file. Is anybody could give me some tips to resolve problem?

Regards

2


Sorry guys I can not attach sound file. I can say this sound like clicks.

3

If you read the customer review of the device you will see that it is a piezo type device and not a true buzzer. You must apply an oscillating signal on the S line to get it to sound. At present you are switching logic levels with 1 second intervals and what you are hearing is the transition from high to low Might I suggest you use the PWM output (set to 50%) as the signal "S" and switch that on and off as desired.

4

Hi jackrae

Yes, you right. I've seen this review now. Could you please point me to apply an oscillating signal on the S line. I have no idea how I should do that.

Regards

5

Use the tone function