Here is something I’m trying to understand and wan’t quite wrap my head around the concepts.
On the Button, D7 is the pin for button 4. The problem is that it’s also the pin for the blue LED!
I want to have the blue LED off at all time, and pinMode(D7, INPUT_PULLDOWN); does just that, but then button 4 appears to be always ON.
Anyone came across this issue? Basically I want to be able to use 4 buttons and have all the LEDs off.