Ok, problem seems to be solved. In my desperation I used a razor to scratch the area between the pins were I have soldered my wires to. Turns out I did a semi-optimal soldering job and there was a invisible conducting connection between two pins. Please don't laugh an thanks for the help

Hello guys, thanks for the replies, sorry for the delay, I had a busy week. I've tried renaming variables and using the pullup resistors. Unfortunately this didn't help. I removed now the rule for the second push button. The strange behavior continues nevertheless: No matter which button I press, th...

Hello guys, after I bought my Google Home enabled light switches I noticed, that they send their stuff through a chinese cloud. This bothered me a lot, and so, after some googling I found this neat little software named Easyesp. After trying it out on a NodeMCU, I've decided, that this is the way to...