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Light sensor

Former Member over 10 years ago

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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bobcroft over 10 years ago +1

Mehrnoush, what you need is a CD74HC4067 16 channel analog multiplexor, well actually three for 40 inputs. There is a tutorial on www.tronixstuff.com. Sparkfun used to make a break out board for this IC…

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0 Robert Peter Oakes over 10 years ago

By the time you add the extra hardware to get to 40 sensors and of course the additional complexity of the software, you may find it easier and quicker to use the MEGA

Is there a reason you cant use the MEGA?

Why do you need 40 sensors, you have not described you project so its hard to provide the best advise

Peter
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0 Robert Peter Oakes over 10 years ago

By the time you add the extra hardware to get to 40 sensors and of course the additional complexity of the software, you may find it easier and quicker to use the MEGA

Is there a reason you cant use the MEGA?

Why do you need 40 sensors, you have not described you project so its hard to provide the best advise

Peter
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