Arduino Alarm System Components

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What is the Arduino Uno R3?

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The Arduino Uno R3 is like the brain of your alarm system. It’s a small computer that helps all the other parts work together. You program it to decide when the alarm should turn on or off. It has pins for connecting wires to sensors and LEDs, and it can be powered using a USB cable or a battery.

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Why is Arduino popular?

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Arduino is popular because it’s simple to use and has lots of online tutorials to help you.

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What is the function of the Ultrasonic Distance Sensor?

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The Ultrasonic Distance Sensor acts as the 'eyes' of the alarm system. It sends out sound waves and measures how long it takes for them to bounce back from an object to calculate the distance. If an object gets too close, it sends a signal to the Arduino to activate the alarm.

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What is the range of the Ultrasonic Distance Sensor?

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The sensor can measure distances between 2 cm and 5 meters.

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What is the purpose of the Red LED in the project?

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The Red LED is the alarm light. It lights up to warn you when an object is too close.

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What are the benefits of using LEDs in this project?

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LEDs are tiny, use very little energy, and last a long time, making them perfect for this kind of project.

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What is the role of the Blue LED?

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The Blue LED acts as a status light. It stays on when the alarm system is ready and waiting for something to happen.

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Why are resistors used in this project?

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Resistors are used to protect the LEDs from getting too much electricity, which might damage them.

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What are Jumper Wires used for?

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Jumper Wires are used to connect all the parts of your alarm system. They have plugs at the ends that make them easy to attach to the Arduino, the LEDs, and the sensor.