Manuel Bl.

You might want to look at this [commit](https://github.com/manuelbl/SwissQRBillDemo/commit/03a3033059dbae7d8e75654aee80ba610f7380cf). It contains the relevant changes. The changes for Java classes in the namespace `net.codecrete.qrbill.web...` are relevant for the demo application only and...

I agree, the development process is difficult. The ZY12PDN board is designed such that one of the STM32 microcontroller SWD pins required for uploading firmware is also connected to the...

Debugging is tricky. The ST-Link can be connected to the pads on the underside of the ZY12PDN board. But the main problem is that a pin is shared between the...

28V is only available with the USB PD version 3.1. Currently, the software supports version 2.0. I'm not sure if the USB PD chip on the board (FUSB302B) is capable...

This library does not implement talking to the eMarker chip. I'm not even sure if the power sink (as opposed to the power source) is allowed to talk to it....

That does sound right. But then again, I've tested this setup and it worked. I will investigate it soon. Possibly an Arduino core update has introduced a change...

It will probably be the weekend before I can create a good test setup and dig into the code.

The problem is reproducible even though it does not affecting the monitoring a great deal in my setup. The power source however thinks that a sink is connected and immediately...

The connect/disconnect events are to be expected when a USB-C plug is connected or disconnected. The USB-PD protocol should handle it. A monitor is also more likely to see spurious...

Is your board designed as a protocol analyzer, i.e. for observing the USB PD communication of two separate devices, or as a USB PD sink? For debugging, you should use...