I was able to do this and it works. I just need to put a timer function, how is it?
Can you help me code it?

https://github.com/contrem/arduino-...aNVFXgxRGvdAYSnYx1Fu4OSVfhRGeEyOZQZ9RTYl1Wrjg

 

For now he could only close rele with ptt and with ptt 10 open them to all.

 

The timer could also be in the hardware portion of the lighting control system and thus not require any code.
Creating a time delay in software requires counting some event, such as ticks of the internal processor clock. There is not such inside the arduino.
Thus I suggestedan external timer as part of the lighting system.

 

Thank you very much for your advice. It's simpler than writing more code and making it more complex.