I need an extra TxD pin for my RPi3B+, so I bought a CHG340 USB UART device for connecting it to the RPi USB port and having one more TxD port: https://www.amazon.es/gp/product/B07LCF ... le_o03_s00
I was trying to install the drivers from https://github.com/aperepel/raspberrypi-ch340-driver but have some problems when following the steps. Otherwise, system says that the module ch341.ko already exists (?????). How can I check if the USB device is working properly?
When it will be working properly, I would like to enable the USB TxD and RxD pins to use them. How can I do that?