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Rediff Shop & Gift > Electronics > Electronic Accessories > Other Home Utility Gadgets > Electronics/electrical Mini Project Using Ic 555- Automatic Night Lamp Or Dark Room Light Controller
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Buy Electronics/electrical Mini Project Using Ic 555- Automatic Night Lamp Or Dark Room Light Controller online
Electronics/electrical Mini Project Using Ic 555- Automatic Night Lamp Or Dark Room Light Controller
Electronics/electrical Mini Project Using Ic 555- Automatic Night Lamp Or Dark Room Light Controller
Electronics/electrical Mini Project Using Ic 555- Automatic Night Lamp Or Dark Room Light Controller
Electronics/electrical Mini Project Using Ic 555- Automatic Night Lamp Or Dark Room Light Controller
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Buy Electronics/electrical Mini Project Using Ic 555- Automatic Night Lamp Or Dark Room Light Controller online

Electronics/electrical Mini Project Using Ic 555- Automatic Night Lamp Or Dark Room Light Controller

SMART MART CART, Thane has been on rediff shopping since 2016 with product in multiple categories like
MRP: Rs.1,999  You Pay: Rs.699 + Shipping: Rs. 20
(Inclusive of all taxes)

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Product Description 
Specifications
Product Features
To detect the light we need any photo sensor and the LDR is one of the most convenient photo sensor. It works on photo conductivity principal. That means its resistance varies as light falls on it. In absense of light the resistance of LDR is maximum and as light intensity increases the resistance decreases. So we can use this property in designing this circuit. As the resistance of LDR changes, the voltage across it also changes and this voltage is used to trigger monostable multivibrator.
For this first we have to measure the resistance of LDR in two conditions
If its intruder alarm application a buzzer may be connected at the output and time period is adjusted from 5 to 10 seconds. So in normal condition when laser light is continuously falling on LDR, there is no sound. But as laser light interrupted (anyone passes between LASER and LDR and cuts the light) the buzzer sounds. A potentiometer is used in timing components to increase the time duration of buzzer sound. The monostable multivibrator is designed for variable time period output from 5 sec to 10 sec
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Electronics/Electrical Mini Project Using IC 555- Automatic night lamp or dark room light Controller- ENGINEERINGS AND SCIENCE STUDENTS
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Electronics/electrical Mini Project Using Ic 555- Automatic Night Lamp Or Dark Room Light Controller price in India : Rs. 699

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