led automatically switch on and off as light intensity increase or decrese by Ashwini sinha Things you need 1 photo sensor or ldr1 led light1 battery(3.4v)20cm wire connect the photodiode in reverse biassing. do the connection as shown in fig now it is ready ....have a fun with it ..when th...By: Ashwini kumar sinha
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from Instructables: exploring - technology - robots http://ift.tt/1rKWofu
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