DIY Laser-LDR Aiming Anti-Theft Burglar Alarm Science Kit
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![DIY Laser-LDR Aiming Anti-Theft Burglar Alarm Science Kit]()
![DIY Laser-LDR Aiming Anti-Theft Burglar Alarm Science Kit]()
![diy-stem-children-learning-educational-science-equipment-toy-infrared-alarm.jpg]()
![STEM-Children-Learning-Educational-Science-Equipment-Toy-Infrared-Alarm-]()
![DIY Laser-LDR Aiming Anti-Theft Burglar Alarm Science Kit]()
![DIY Laser-LDR Aiming Anti-Theft Burglar Alarm Science Kit]()
LDR (Light Dependent Resistor): Detects changes in light intensity.
Buzzer or Speaker: Produces the alarm sound.
Transistor (NPN): Acts as a switch for the buzzer.
Resistors: For limiting current and protecting components.
Power Source: Battery For power supply, We provide only AA Battery holders.
Connect Laser Module: Connect the positive (usually red) and negative (usually black) wires of the laser module to the Battery power source(3Volt). Connect one leg of the LDR to the positive rail of the connector as shown in the diagram. Connect the other leg of the LDR to the base of the NPN transistor. Connect one leg of the LED/Buzzer to the collector of the NPN transistor. Connect the other leg of the buzzer to the negative rail of the given Connector. Connect the emitter of the NPN transistor to the negative rail of the connector. Connect the collector of the NPN transistor to the positive rail through a resistor. Create a voltage divider using resistors if necessary to adjust sensitivity. Connect a resistor from the positive rail to the connection between the LDR and the base of the transistor.
Connect the positive and negative terminals of the AA Battery power source to the respective rails on the connector.
Adjust the position of the LDR and laser to ensure that the laser beam falls on the LDR.
When the laser beam is interrupted (e.g., by an intruder), the resistance of the LDR changes, triggering the alarm. Experiment with resistor values or the position of components to adjust the sensitivity of the alarm system. Install the laser module and LDR at the desired location, ensuring the laser beam aligns with the LDR.
Turn on the power source, and the alarm should sound when the laser beam is interrupted.
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DIY Laser-LDR Aiming Anti-Theft Burglar Alarm Science Kit
Available:In Stock
- Product SKU: LGPW057
₹ 549
₹ 675
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Warehouse Details
Specification
Description
Creating a DIY Laser-LDR (Light Dependent Resistor) Aiming Anti-Theft Burglar Alarm Module Kit can be a rewarding project to enhance security. This DIY Laser-LDR Aiming Anti-Theft Burglar Alarm Module Kit provides a basic but effective way to create a security system. Always exercise caution when using laser modules, and avoid pointing them directly into the eyes.Materials Needed:
Laser Module: Emits a laser beam.LDR (Light Dependent Resistor): Detects changes in light intensity.
Buzzer or Speaker: Produces the alarm sound.
Transistor (NPN): Acts as a switch for the buzzer.
Resistors: For limiting current and protecting components.
Power Source: Battery For power supply, We provide only AA Battery holders.
Instructions:
Identify and gather all the required components:Connect Laser Module: Connect the positive (usually red) and negative (usually black) wires of the laser module to the Battery power source(3Volt). Connect one leg of the LDR to the positive rail of the connector as shown in the diagram. Connect the other leg of the LDR to the base of the NPN transistor. Connect one leg of the LED/Buzzer to the collector of the NPN transistor. Connect the other leg of the buzzer to the negative rail of the given Connector. Connect the emitter of the NPN transistor to the negative rail of the connector. Connect the collector of the NPN transistor to the positive rail through a resistor. Create a voltage divider using resistors if necessary to adjust sensitivity. Connect a resistor from the positive rail to the connection between the LDR and the base of the transistor.
Connect the positive and negative terminals of the AA Battery power source to the respective rails on the connector.
Adjust the position of the LDR and laser to ensure that the laser beam falls on the LDR.
When the laser beam is interrupted (e.g., by an intruder), the resistance of the LDR changes, triggering the alarm. Experiment with resistor values or the position of components to adjust the sensitivity of the alarm system. Install the laser module and LDR at the desired location, ensuring the laser beam aligns with the LDR.
Turn on the power source, and the alarm should sound when the laser beam is interrupted.
Features
- Great learning kits for kids to learn science, technology, engineering, and mathematics, It is beneficial for children’s intelligence development. DIY DIY 3D wooden plane hand generator Physical Learning Toy Science Kit, Great for school physical teaching tool.
- Excellent kit for students to learn, training courses for after-school classes.
- A wonderful kit for ability training, dynamic brain, vision, and interest training. laying a good foundation for future physics and chemistry studies.
- Satifaction Guarantee: Our kits have a strict quality guarantee, We will give you a happy shopping experience.
Physical Attributes
- Dimensions (cm) L x W x H : 20X14X1.6
- Weight (gm): 85
Package Includes
- 1 x DIY Laser-LDR Aiming Anti-Theft Burglar Alarm Science Kit
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