My first intension was that ST's GUI is just looking for COM1 to COM9. My PC has seen over 170 virtual COM port devices and slowly but surely I am running out of unused numbers :grinning_face: . In the end I was lucky to find one related post which d...

Hi there,I have the same problem with my STEVAL-ISB042V1 evaluation board and the ISB042GUI (or STWLC33 GUI 1.09). Somehow the GUI can't find the I2C bridge when clicking "Connect I2C bridge". The I2C bridge acts as virtual COM port on my system and ...