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I2C is bvilt to support multiple adresses using the same two lines. you can hook up multiple sensors and lcd or what ever you want on the same pins. i dont remember how many, it is limited, but probably more than you would hook up to one microcontroller anyways. you define each devices adress in your code. <br><br>thank you for your instructable. lots of good ideas. thought you would like to know you could use your I2C module for your lcd also.
<p>Thank you for this information. I am working on it now. I hope it will not make long delays on communications with both connected. Because this LCD I2C module works different, it also needs a different library. If it works than there will be a lot of pins for other sensors.</p>

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