In this, we have used the components given below, if you want to buy these components, then there is a link with the name of the components, you can buy from that link -
IR Sensor - https://amzn.to/3B2pF35
Buzzer - https://amzn.to/3hG4LgZ
9v Battery - https://amzn.to/3wlU3nM
This is its circuit diagram -
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