I am currently thinking about a new device, that would succeed the PD logger. The idea is not only to log VBUS voltage and current, but also to log and decode the PD negotiation between the USB-C power supply and the connected cable and device. I would need to decode the data on the CC and VCONN lines.

I am interested in obtaining the cable e-marker data, the power supply capabilities, and the consumer device selection.

What I have in mind is a pcb with SMD electronics, including an on-board ESP32-S3 controller, an interface to a 2.8 inch resistive touch display (I need more space for meaningful data display), and of course the analog electronics for VBUS voltage and current measurement and for CC and VCONN signal processing. 

I would design a circuit that can be controlled by the touch display. However, the very same board would also work without the display, but could be controlled by a Wifi web interface, instead - similarly to the one I have for the PD logger.

Does this make sense. Do you have any thoughts on such a device?