![]() I2C0 can only talk to HAT EEPROM at address 0x50 during boot time. It is possible to access I2C0 only if both the camera interface and HDMI port are unused. To use I2C0, add the following lines to boot/config.txt. ![]() The I2C0 pins are not internally pulled up, so if they are used by modifying the Raspberry Pi configuration file, external pull-ups (to 3.3V) must be used on both SDA and SCL lines. While using I2C0, pins avoid using the HAT EEPROM address.Įven the I2C1 is disabled on Raspberry Pi by default. It needs to be enabled from the Raspberry Pi configuration. ![]() ![]() The Raspberry Pi’s BSC controllers support multi-master, multi-slave I2C. Therefore, I2C1 is sufficient to connect several I2C slaves (maximum 112 slaves) and any number of master devices. On Raspbian, navigate to Pi Start Menu -> Preferences -> Raspberry Pi Configuration. ![]()
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