Hello, I'm running a http-server on port 80 on RPi that doens't support SSL. In order to secure access from the internet I added stunnel to Rpi that listens on port 443 and transfers to port 80. Access with a browser from another computer does not work. I have absolutely no knowledge of stunnel and ...

Problem solved!

I downloaded the driver code from the manufacturers website (http://www.wch.cn/download/CH341SER_LINUX_ZIP.html) and rebuilt the driver. After that it worked immediately.

It seems there is a probem with the built in driver ch341.ko in raspbian version 4.4.12-v7+

Hi Scruss, Thanks for the help but no success 1. The loopback dongle has indeed tx/tx connected ( following pins are connected1-4-6 and 2-3 and 7-8-9) 2. Dialout belongs to the pi user group (if I type "id" it shows a list of groups with "20(dialout)" ) 3. I installed screen and typed your command. ...

I used exactly the same settings in Putty for Windows as in Putty for Raspbian. 8 data bits, 1 stop bit, no parity, no flow control, 9600.

I assume the cable (with CH340 chip?) is not compatible with that driver.

I want to connect the Pi to my home domotics system that only has a RS232 interface, therefore I need a working cable/driver.

I installed Putty on my Windows10 PC -> cable works
I installed Putty on RPi -> cable does't work

Hello, I bought a verry cheap USB to Serial cable (blue connectors and a transparant wire with silver shielding). The cable works fine on Windows 10 (tested with loopback dongle and Putty). When I insert the cable with loopback dongle in my RPi3 (Rasbian - Jessie) everything looks ok. When I start a...