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Topic: I2C or SMBus? (Read 586 times) previous topic - next topic

summerhill

I am new to Arduino. The Taos sensor I'm looking at is available in both
I2C and SMBus interface.

I believe I read that Arduino supports I2C using the Wire library, but would
appreciate information about which interface is best suited to the Arduino
environment. Is there a significant difference in terms of ease of use?

Thanks.

Constantin

I suggest going the I2C bus route, as long as the sensor will remain close to the Arduino. I believe the rule of thumb is keeping I2C connections shorter than 1m... I have had good success with I2C and a variety of real time clocks such as the Chronodot, for example. That said, I would breadboard anything you dream up before trying to come up with a dedicated PCB. There are plenty of examples around this site to choose amongst.

SMB is not something I have ever used with an Arduino.

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