Page 1 of 1

Adding an extra TxD pin on RPi3B+

Posted: Thu May 09, 2019 6:24 pm
by Smntk
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: ... le_o03_s00
I was trying to install the drivers from 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?