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Light sensor

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I want to connect 40 light sensors to my Arduino .Is there any possibility to connect all together without mega arduino?I really appreciate if any one could give me advice, tutorial or…

 

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    Hi Mehrnoush,

    I don't know of a tutorial or project involving so many sensors connected to an Arduino, but just general reading up on I2C or other serial interfaces will show that it is possible to chain up sensors if they are digital serial devices (you may hit an addressing limit, in which case you'd have to implement multiple serial buses on your microcontroller (Arduino or otherwise).

    If the sensors are analog, then search for analog multiplexing (would need additional hardware).

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    Hi Mehrnoush,

    I don't know of a tutorial or project involving so many sensors connected to an Arduino, but just general reading up on I2C or other serial interfaces will show that it is possible to chain up sensors if they are digital serial devices (you may hit an addressing limit, in which case you'd have to implement multiple serial buses on your microcontroller (Arduino or otherwise).

    If the sensors are analog, then search for analog multiplexing (would need additional hardware).

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