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U3 : cheapest labjack unit for I2C communication?


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#1 user1979

user1979
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Posted 19 September 2013 - 04:29 AM

Hello,

 

I need to communicate with several sensors using the I2C protocole, using 2 I/O digital pins for each sensor (been using a multiplexor with success with Labjack units before but here I need the simplest and quickest way to make my test). Could you confirm these 2 points :

 

-U3 would be the cheapest solution among the Labjack units

-one U3 unit will enable me to communicate with 10 sensors (20 DIO  / 2 ) 

 

Thank you very much,

 

User 



#2 LabJack Support

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Posted 19 September 2013 - 10:36 AM

I agree.  The U3-LV is our lowest cost device, and it will allow you to talk to 10 sensors using individual SDA/SCL lines for each.  If the sensors have or can have different addresses, you can connect multiple to the same SDA/SCL lines and thus do many more than 10.

 

http://labjack.com/s...rs-guide/4.3.11

http://labjack.com/s...cation-examples



#3 user1979

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Posted 20 September 2013 - 12:53 AM

Hello,

 

You are correct. I forgot to say I didn't want to have to change the sensors adress's.

 

Thanks you very much for your quick answer.

 

Regards,

 

User




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