@gerber said in I2C with Atom S3 and PoE Base W5500:

ATOMIC PoE Base W5500

ATOMIC PoE Base W5500 occupies PIN ports and uses SPI protocol from what I can see,
0_1710777815248_atom poe.jpg

so groove port on atom light is still available (TypeC x 1, GROVE(I2C+I/0+UART) x 1)

0_1710777833488_atom light.jpg