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Microcontroller Programming » I2C communications
October 24, 2009 by mikedoug |
The docs for the MPU talks about SCL and SDA -- what pins are those? I don't see that explained in the docs... |
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October 24, 2009 by mrobbins (NerdKits Staff) |
Hi mikedoug, Chapter 21 of the ATmega168 datasheet, titled "2-wire serial interface" and abbreviated TWI, is Atmel's way of avoiding the Philips trademarks on the name I2C. :-) The actual pin numbers are MCU pin #28 for SCL, and MCU pin #27 for SDA. That's written on page 2 of the ATmega168 datasheet, under "pin configurations". And I'm guessing that you're looking into this in relationship to the "Biology Project" post? Mike |
October 24, 2009 by mikedoug |
The Biology Project post got me looking into it -- that and a heck of a lot of curiosity. :) MikeDoug |
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