can someone plz help me with this project i have tried every step but as mentioned here but buzzer is not working
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Can you post relevant code and error screenshots if any?
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Can you explain at what step you are finding difficulty or error?
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this is my code there isnt any error showing message…
and the code is working just fine i suppose
when i click on either of the buttons there isnt any response…
I have done the connections somewhat like this
+ve pin of the buzzer is connected to the pin’0’ via resistor and -ve pin to ‘gnd’
Remove the resistor, Do not use a resistor with the buzzer, the buzzer wont work 
To which port have you connect the buzzer to? port 0 or port A0?
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+ve pin has been connected to the 0pin
still not working brother …
No changes needed there,
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Okay right click on control page and select inspect sources, a windows will open, navigate to Console tab, Now check whether any error is displayed when you click the on and off button in control page.
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Have you enabled the Api Key?
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Okay so thats the problem, You have made too many api requests, Although Bolt Api service is free, the number of requests you can make is limited.
I suggest you go through the below link to know more about it.
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so what should i do exactly?
I think you have to wait for 6 hours before you can start making Api requests again, just make sure you do not exceed Api request limit from next time!
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Thank you very much …now it works 
Dear fellowmate , there is no mistake in the code you have written . But connecting a resistor to the buzzer is the only mistake you have done. When you are using a small Piezo buzzer ,we dont need a resistor as it derives or uses very small amount of current . So it can be used without a resistor in series.
Good Day!
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Yup, I also had the same doubt, my buzzer was not working too and the error is same that “TOO MANY REQUESTS” ill keep in mind next time.
Connect the digital pin 0 to the positive pin of Buzzer and Negative pin to the ground. then copy the given code bellow.```
var dual =dualButton(“left”);
dual.first_button({name:“Buzzer Off”, action:“digitalWrite”,
pin:“0”, value:“LOW”, bgcolor:“blue”,
shape:“rectangle”, text_color:“white”})
dual.second_button({name:“Buzzer on”, action:“digitalWrite”,
pin:“0”, value:“HIGH”, bgcolor:“black”,
shape:“rectangle”, text_color:“white”})
hi the only mistake you have done is doing the same connection did for led don’t not connect the resistor to the buzzer if ur code right also u will not get the sound so please try removing the resistor it will work…
check connection of buzzer than try it may a problem of connection is there