Hello, did I use String in a wrong way? String chaine; int a=10; int b=20; int c=30; int adresse=123; long valeur=123456; if i do this : chaine=String(adresse)+" "+String(Valeur)+" a="+String(a)+" b="+String(b)+" c="+String(c); Serial.println(chaine); then bug if i do that : Serial.print…

String

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