Convert LDR value to Lux using ESP32

Other Hardware Sensors
1

How can I make lux meter using LDR and esp32?

2

Welcome to the forum

Have you constructed a circuit and written a sketch that allows you to read the resistance of the LDR and print it on the Serial Monitor ?

If not, then now would be a good time to do it

3

Hi,
FYI:

4

Get a calibrated light source, note your LDR result and go from there.

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5

But remember that LDRs are not perfect. If you want accurate readings you'll have to use a photodiode.

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6

also what spectral sensitivity curve do you want? each type of light sensor has a different response.

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7

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