I went through a youtube video on understanding I2C and how I can use it with Arduino. One part of the video that completely went over my head was the part when they are using the register to access hr,min, and sec. I do not understand how he came up with the hex codes the way he did. Here is the da…

I2C and DS1307 real-time clock IC

nickgammon March 29, 2012, 9:52am 7

Did you not comprehend my answer to the EXACT same question earlier today? Please don't double post like that.

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