Arduion

Hejsa.

Er ved at lave en lysregulering via en arduino uno til en togbane.
Har fundet dette stykke:

void changeLights(){
    // turn both yellows on
    digitalWrite(green1, LOW);
    digitalWrite(yellow1, HIGH);
    digitalWrite(yellow2, HIGH);
    delay(5000);

    // turn both yellows off, and opposite green and red
    digitalWrite(yellow1, LOW);
    digitalWrite(red1, HIGH);
    digitalWrite(yellow2, LOW);
    digitalWrite(red2, LOW);
    digitalWrite(green2, HIGH);
    delay(5000);

    // both yellows on again
    digitalWrite(yellow1, HIGH);
    digitalWrite(yellow2, HIGH);
    digitalWrite(green2, LOW);
    delay(3000);

    // turn both yellows off, and opposite green and red
    digitalWrite(green1, HIGH);
    digitalWrite(yellow1, LOW);
    digitalWrite(red1, LOW);
    digitalWrite(yellow2, LOW);
    digitalWrite(red2, HIGH);
    delay(5000);

}

Men får denne fejl :
exit status 1
'green1' was not declared in this scope