SDA is on analog input pin 4, and SCL on analog input pin 5. What's SQW, it doesn't seem to be mentioned in the ATmega8 datasheet, but maybe they use a different name for it. I've never actually used i2c, so I don't know much about it.
SDA is on analog input pin 4, and SCL on analog input pin 5. What's SQW, it doesn't seem to be mentioned in the ATmega8 datasheet, but maybe they use a different name for it. I've never actually used i2c, so I don't know much about it.