Example for tca9548 driver

What it does

It shows temperature and pressure measured by two BMP180 connected to TCA9548.

Wiring

• Connect SCL and SDA pins of TCA9548 to the following pins with appropriate pull-up resistors.

Name	Description	Defaults
CONFIG_EXAMPLE_I2C_MASTER_SCL	GPIO number for SCL	"5" for esp8266, "6" for esp32c3, "19" for esp32, esp32s2, and esp32s3
CONFIG_EXAMPLE_I2C_MASTER_SDA	GPIO number for SDA	"4" for esp8266, "5" for esp32c3, "18" for esp32, esp32s2, and esp32s3

• Connect SCL and SDA pins of first BMP180 to the SC0 and SD0 of TCA9548
• Connect SCL and SDA pins of second BMP180 to the SC1 and SD1 of TCA9548

Notes

• Choose correct I2C address of TCA9548 in menuconfig. It's 0x70 by default.
• CONFIG_NEWLIB_LIBRARY_LEVEL_NORMAL must be y on esp8266.