During some test loops - changing code, compiling, running with outputs on Serial Monitor - the USB driver seems to be lost. An information window appeared that a USB driver is being installed. But then it reported that the driver could not be found.
Since then the USB link to the PC is dead. The port (usually COM19) does not exist in the list of ports. When plugging and unplugging the USB connector there is no sound as usual when a USB device is connected. The device manager doesn't show any problems.
How can I get back the USB driver?
Since then the USB link to the PC is dead. The port (usually COM19) does not exist in the list of ports. When plugging and unplugging the USB connector there is no sound as usual when a USB device is connected. The device manager doesn't show any problems.
How can I get back the USB driver?