Hi all, Nano + 8x relay Only the first 3 pins of my sketch works, half the sketch doesnt work. I dont know what is wrong as it is just the same lines with different numbers.. int ledPin1 = 2; int ledState1 = HIGH; unsigned long previousMillis1 = 0; int ledPin2 = 3; int ledState2 = HIGH; uns…

Random Relay 6 pins / 3 pins works, 3 does'nt. What's wrong?

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