Hello, I was curious if anyone has talked from arduino to i2c bus on pice before? I saw a few people in search forums talking about this but not arduino. If someone has I would love to know what have you done to talk with arduino on the server/pc side please?
Internally PCs use a variant of I2C called SMBus to talk to on board sensors for temperature and voltages. It is not usually externally available.
There are bridge chips that can connect to the PCIE bus and provide external interfaces. I have never seen a PCIE board for I2C (but then I haven't looked). PCIE to serial, USB and parallel port are common.