I got it and it's so stupid from me :
I used the Analog 3 instead of digital (PWM) 3.
I found out when I plugged the arduino Uno instead of the Nano (because it's writtend analogue in)
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I got it and it's so stupid from me :
I used the Analog 3 instead of digital (PWM) 3.
I found out when I plugged the arduino Uno instead of the Nano (because it's writtend analogue in)