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LDR, ADC 10 bit, LUX

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Don_dody

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I use LDR as a light sensor. Its output is directly connected to my ADC which is included already in my AVR. The ADC is 10 bit. Now I want to convert the ADC value (0 up to 1023) into lux. Sine I don't have any commercial luxmeter, so can anyone help me how to convert this adc value into lux ?

I know the LDR maybe different with mine, but let just ignore it for now.

Thanks.
 

tpetar

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