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I ran i2cdetect -y 1 and got the following chart back:

0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 60: -- -- -- -- -- UU -- -- -- -- -- -- -- -- -- -- 70: -- -- -- -- -- -- -- --

How do I interpret this address (i.e., 0x40, 0x41, etc.)?

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The active address is 0x65.

The row indicates the 16's place and the column indicates the one's place. So the answer is 0x60 + 0x05 = 0x65.

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