This method initializes the I2c and sets the optional read delay (in microseconds).

        It must be called before doing any other i2c operations for a given device.
        :param command: {"method": "i2c_config", "params": [DELAY]}
        :returns: No Return message.

async def i2c_config(self, command):
        """
        This method initializes the I2c and sets the optional read delay (in microseconds).

        It must be called before doing any other i2c operations for a given device.
        :param command: {"method": "i2c_config", "params": [DELAY]}
        :returns: No Return message.
        """
        delay = int(command[0])
        await self.core.i2c_config(delay)