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Arduino Forum Need help in figuring a way out to add LED's onto my project
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Related

Need help in figuring a way out to add LED's onto my project

Former Member
Former Member over 9 years ago

I'm trying to find a way to make LED's flash in accordance with the coding established in Project 07: Keyboard Instrument. I tried setting the pins to the LED's and adding them in the if and else statements for them to activate at the same time the notes do. But I've had no such luck. Could anyone help me understand where I'm going wrong?

 

Physical Side:

image

Coding Side:

int notes[] = {262,294,330,349};

 

 

void setup() {

  Serial.begin(9600);

  pinMode(5, OUTPUT);

  pinMode(4, OUTPUT);

  pinMode(3, OUTPUT);

  pinMode(2, OUTPUT);

}

 

 

void loop() {

  int keyVal = analogRead (A0);

  Serial.println(keyVal);

 

  if(keyVal == 1023){

    tone(8, notes[0]);

    digitalWrite(2, LOW);

    digitalWrite(3, LOW);

    digitalWrite(4, LOW);

    digitalWrite(5, HIGH);

  

  }

 

  else if (keyVal >= 990 && keyVal <= 1010){

      tone (8, notes[1]);

      digitalWrite(2, LOW);

      digitalWrite(3, LOW);

      digitalWrite(4, HIGH);

      digitalWrite(5, LOW);

  }

 

 

  else if (keyVal >= 505 && keyVal <= 515){

    tone(8, notes[2]);

    digitalWrite(2, LOW);

    digitalWrite(3, HIGH);

    digitalWrite(4, LOW);

    digitalWrite(5, LOW);

  }

 

  else if (keyVal >= 5 && keyVal <= 10){

    tone(8, notes[3]);

    digitalWrite(2, HIGH);

    digitalWrite(3, LOW);

    digitalWrite(4, LOW);

    digitalWrite(5, LOW);

 

  }

 

 

  else{

        noTone(8);

        digitalWrite(2, LOW);

        digitalWrite(3, LOW);

        digitalWrite(4, LOW);

        digitalWrite(5, LOW);

      

  }

} 

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Top Replies

  • balearicdynamics
    balearicdynamics over 9 years ago +2
    Hello, better if you provide a schematics, Jack. No matter if it is done by hand or Fritzing or Eagle. Anyway from the image it seems that your LEDs are connected to the digital output signal and in the…
  • mcb1
    mcb1 over 9 years ago in reply to clem57 +1
    Actually that is not the best method to tell. Yes if they are new the longer lead is the Anode, but I have seen the internal structure swapped which was really annoying. There is a flat on the Cathode…
  • clem57
    clem57 over 9 years ago in reply to mcb1 +1
    You are right mcb1 so I gave the link for all the gorey details. Thanks for the clarity you added. Clem
Parents
  • balearicdynamics
    balearicdynamics over 9 years ago

    Hello, better if you provide a schematics, Jack. No matter if it is done by hand or Fritzing or Eagle.

     

    Anyway from the image it seems that your LEDs are connected to the digital output signal and in the meantime to the push button signal. This sounds strange, but from the image it is not possible to understand too much for me.

     

    Enrico

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  • Former Member
    Former Member over 9 years ago in reply to balearicdynamics

    Do I have to draw up the schematic or is there an easier way of getting it?

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  • Former Member
    Former Member over 9 years ago in reply to balearicdynamics

    Do I have to draw up the schematic or is there an easier way of getting it?

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