This is actually a spin-off of this topic.
I have this relay:
In Espimatic I had this config:
I didn’t change a thing on the nodemcu and simply flashed Esp Easy R139 onto the nodemcu and upon startup I set it to
However, no matter what I configure, when setting the value 1 to gpio 15 it switches the heating off and when sending the value 0 on gpio15 it switches the heating on. If I set “inversed” to on it still does this.
I also tried other combinations but it also swithes to when sending a 0 value, and it switches off when sending a 1 value.
I have the idea that I overlook something, but what?