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Chauhan Shakti Singh
E.E.E
 · GhaziabadIndia
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You can use ultrasonic sensor or any good kind of obstacle sensor as the main objective of the sensor is to recognise a kind of obstacle and give that output to the street light to switch on or not and you can also use LDRs to recognise the light or lumens of the sunlight during day time and this can help the street light to switch on automatically…

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Hamid Ladan
 · AbujaNigeria
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And it can include A Motion detector so when a pedestrain passes by it lights up for a certain time before going off to conserve Energy

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