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RaspberryPiBeginners
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Multiple tmp102 sensors

Thu Sep 20, 2012 11:05 pm

Has anyone seen any information on connecting multiple tmp102 sensors to a pi? I
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Steven Boelens
Posts: 52
Joined: Sat Sep 08, 2012 12:16 pm

Re: Multiple tmp102 sensors

Fri Sep 21, 2012 7:28 am

Have you checked the datasheet for this? I think that you can select four different addresses with the ADDR connection of the tmp102 (connected to ground, V+, SCL and SDA).

On the hardware side I think it is just a matter of parallel connecting the chips, just connect all the SCL lines to the same SCL line of the Pi. The same goed for all the SDA lines. I read somewhere that this should work just fine, but also some reports of people that needed a pull-up resistor.

Datasheet for the tmp102 breakout:
http://www.sparkfun.com/datasheets/Sens ... tmp102.pdf
Connecting multiple devices:
http://www.instructables.com/id/Questio ... C-Devices/

Hope this helps.
Steven
PS: Love the beginners video's. They helped me a lot when I just got my Pi and I still use them regularly.

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