You have a thread open on this topic here.
https://forum.allaboutcircuits.com/threads/drive-h11l1-optocoupler-issue.161148/#post-1408942
Please only one thread per topic.
https://forum.allaboutcircuits.com/threads/drive-h11l1-optocoupler-issue.161148/#post-1408942
Please only one thread per topic.