Last time, I gave you an overview of what you get from I2C ... 8 bits and we have 16 GPIOs, there are two registers per feature, and as such, there are two registers for pin directions, two ...

six I2C controllers, and six UARTs – all on its 40-pin header. You can’t make use of all of these at once, but with up to four different connections wired to a single pin you can carve out a ...

2- Working of I2C communication protocol I2C makes use of SDA and SCL, which are 2 bi-directional open-drain lines for data communication. Serial Data (SDA) – Data transfer takes place via this pin.