Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Depending on what you are connecting to "K2", there could be a problem in that the signal levels at that port are not RS232 but TTL.
If you need true RS232 levels at K2, you would be advised to use a MAX232 or similar between K2 and U3 (or possibly instead of U3).
JimB