i want a bulb/led to light up with an intensity dependent upon the amount of light that hits the analogue light sensor...do i really need arduino or any programming? , or can i just connect the battery ,the light sensor and the bulb in a simple circuit??

light sensor circuit

system October 5, 2012, 5:01pm 2

do i really need arduino or any programming?

A 555 + photoresistor will do that for you.

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