Designed this clock in a CAD software and printed it in my 3D printer.
Everything works perfectly except the timer. Somehow it can not be sent out from PMDG software.
However when I push the ET button the time starts on the panel clock, that is why I still need it to be on the screen.
If anyone has a solution for the endurance time to be sent to an Arduino please let me know.
Happy simulator build.
Boeing 738 flight simulator 