Error with light sensor

Using Arduino Sensors
1

Good afternoon! excuse me, I have a doubt. :blush:
A few days ago I bought a light sensor with its respective module to use it with my ARDUINO. I make the respective connections as indicated, but when I want to get the data from this sensor, it is not really what I wanted.
Since when I record the data in a variable and print it on the console, it only records two numbers, 21 and 1023. And they do not vary beyond these two.
I want to know if the problem is of the module purchased or you have to do something else to start working with this sensor.

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Thank you in advance for your prompt response, have a nice day. :orange_heart:

2

It's the module you purchased. It only has a digital output, no analog.

1 Like
3

You will only get an on and off signal, ie digital as aarg stated. The trim pot allows you to set the light threshold to the light level you want.

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4

If you need an analog voltage you can simply unsolder the LDR and use it in a potential divider circuit

5

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