Multiple tmp102 sensors


2 posts
by RaspberryPiBeginners » 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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by Steven Boelens » 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
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