I use Turta IoT HAT with Raspberry and try to add analogue sensors to grove I/O ports. I have MQ-2 and MQ-9 sensors from seeedstudio (http://wiki.seeedstudio.com/) .
There are examples in Python from Turta.io how to access sensors embedded into IoT HAT, but nothing about how to access sensors connected to external I/O ports. The only info is that they are directly connected to an ADC which uses microcontroller on 0x28 address over the I2C bus.
Has anyone implemented way to access such sensors via analogue grove ports using Python?