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https://technoelectronics44.blogspot.com/ here you will find good stuff about the LDR sensor, with schematic and coding
LDR (LIGHT DEPENDENT RESISTOR)
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The main aim of this project is to saving system with LDR this is to save the power. We want to save power automatically instead of doing manual. So it’s easy to cost effectiveness. This saved power can be used in some other cases. So in villages, towns etc. we can design intelligent systems for the usage of light or we can also use this to reduce the electricity bill of our home. This project can also be used for security of the houses, banks, etc.
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The main aim of this project is to saving system with LDR this is to save the power. We want to save power automatically instead of doing manual. So it’s easy to cost effectiveness. This saved power can be used in some other cases. So in villages, towns etc. we can design intelligent systems for the usage of light or we can also use this to reduce the electricity bill of our home. This project can also be used for security of the houses, banks, etc.
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Here you will get every details about photo resistor device and its applications. How it makes in factory. And the important thing is The Light-Controlled Switch Using a Transistor.
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Automatic Emergency Light
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Many of the people have a phobia of darkness, so to assist them in such situation, we have explained a simple circuit. It will automatically turn on street light in the way of LEDs or bulb coupled with relay. Working this circuit is very much easy and also the power consumed by the circuit is very low because of the very few components used in the circuit.
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its a power point presentation on automatic emergency light using led with complete details of the circuit & the components used to make it along with the advantages, disadvantages & future scope. The slides also contains pcb layout of the circuit.
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led and ldr
1.
DONE BY RAHAVEE
2.
3.
4.
• (LED light)
A light-emitting diode (LED) is a semiconductor light source. LEDs are used as indicator lamps in many device.
5.
• LDR(LIGHT DEPENDENT
DIODE). A type of resistor that decreases in resistance when it is exposed to light
6.
LIGHT EMITTING
LIGHT DEPENDENT DIODE. RESISTOR. ALLOWS THE RESISTS THE FLOW CURRENT TO FLOW IN OF CURRENT. ONE DIRECTION.
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