Integrating I2C sensors

Hi Folks,

I would like to integrate a Lux sensor TSL2561, an ADC DAC board PCF8591 and a water level sensor with a RaspberryPi 3.
All of these have I2C interface.

However, I notice that Home Assistant doesn’t support I2C or SPI right now.

What are my options? Can I write my own python scripts to export that data and somehow import it into home assistant?

any luck ?
i’m trying to get a smoke sensor MQ2 directly in GPIO and in HA.
is this possible?

Checkout Anyone tried to get data from a BME280 sensor?