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How to convert LDR reading to lux readings? Answered

I want to make a digital lux meter using aarduino but I am quiet confused on how do I convert LDR reading into lux reading.Please help me for the conversions. 


By calibration against a known good lux meter, or from a suitable reference source.

Borrow one. I didn't say you needed to own one.

If you can use a TAOS sensor, they could be a better place to start than a photodiode.

And what range do you want to cover ?