© © © © © © int valSW; // void setup(){ pinMode(13, OUTPUT); //13 pinMode(A4, INPUT_PULLUP); //A4 } void loop(){ valSW = digitalRead(A4); //A4 valSW if(valSW == 0){ //valSW digitalWrite(13, HIGH); //valSW 0 LED ------( A) }else{ digitalWrite(13,LOW); //valSW 0 LED ---( B) } } © setup pinMode(A4, INPUT_PULLUP) loop if valSW = digitalRead A4 digitalRead valSW valSW valSW int=valSW if valSW == 0 if i
