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2. Which component gives signals to the Arduino when it detects motion?
3. Which device is used to make a sound in a theft alarm system?
4. Which pin on the PIR sensor sends output to Arduino?
5. What does the Arduino do when it receives a HIGH signal from the PIR sensor?
6. Which pin on Arduino is used to connect the sensor output?
7. How many pins does a PIR sensor have?
9. Which component acts like the “brain” of this system?
10. Which signal does a servo motor need from the Arduino to rotate?