There is a simple example how to generate a QR-code and show it in web-visu: Example_QrCode_RPI.projectarchive Requirements:1
. You need to install qrencode
:sudo apt-get install qrencode2
. You need to install OwenStringUtils
library. It included in projectarchive or you can install it separately: download
It's nice lib with additional string functions like ASCII/Unicode conversion, formatting and parsing.3.
In example used SysProcess
So you need to add in /etc/CODESYSControl_User.cfg
Keep in mind that you need to have write access rights:sudo chmod 0666 /etc/CODESYSControl_User.cfg4
. You need to set write access rights for /visu
directory:sudo chmod 0666 /var/opt/codesys/PlcLogic/visu5
. You can see qr-code in web-visu, but not in service-visu (CODESYS IDE-visu).