They are open drain when I2C mode is enabled. The standard arduino I2C library enables 'weak' pull-ups to the boards Vcc voltage for the two I2C control signals, something like 40K ohms.
Well that would explain it.
They are open drain when I2C mode is enabled. The standard arduino I2C library enables 'weak' pull-ups to the boards Vcc voltage for the two I2C control signals, something like 40K ohms.
Well that would explain it.