26-04-2017, 10:40 PM
Hi am Midhlaj, I would like to get the project report on light sensitive trigger. kindly provide me the report.
Thank you
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light sensitive trigger project ppt
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Hi am Midhlaj, I would like to get the project report on light sensitive trigger. kindly provide me the report.
Thank you
28-04-2017, 11:57 AM
![[Image: Untitled1.png]](https://3.bp.blogspot.com/_MYg9rMLQRzg/SsbMVvvMj5I/AAAAAAAAAJA/-Az1vHr2_7M/s320/Untitled1.png)
The circuit given by the demonstrator is shown as the diagram above. Actually, this circuit acts as a magnetic detector, which can automatically activate or deactivate the load. For this circuit, the light dependent resistor (LDR) will give the command to the IC of the 555 timer. The command is sent to the timer when it has shadow or no lights in the LDR. The timer will receive the command on pin 2, which is the trigger input. The timer will process the input and output the relay. The timer required a period of time to receive the input and a period of time to process the output. The time can be calculated by multiplying the resistance (R2) with the capacitor (C1) and In3. The output command will control the coil in the relay, which can ignite the load or turn off the load. The load will be turned off when no light falls on the LDR and lights up when you get the light flow on the LDR.
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