i2C Question on connection of board

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hi, example if have master , slave. master request bytes slave, slave send required bytes over. therefore, question which of arduino board should connected computer? right because master printing serial com should connected computer , slave powered master?

connect whichever 1 want send data computer computer.  there nothing in question implies either 1 better other.  either 1 talking serial computer.  matter both communicating computer on serial. 


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