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Hi Aaryas , i haven't actually made use of the potentiometer . I have listed it as a requirement since you might have a different pair of IR-LED which work at a specific voltage level , so the Potentiometer can prove to be handy in adjusting the voltage to your IR LED . Hope this helps.
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Can i get the screenshot of the code along with the error ? . It would be easier for me to debug that way . I guess you have either not written the code for the buzz method or perhaps you have named it something else by mistake . Just add a screenshot and il help you out .
Please check if you provided Vcc to the correct leg of the IR sensor . This should solve it . Are you using these type of IR led Pairs or some other mounted sensor ? .Do attach a picture of the IR pair , if the problem persists .
Please check if you provided Vcc to the correct leg of the IR sensor . This should solve it .
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