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Related

Help with joining two pieces of code.

e14 Contributor
e14 Contributor over 12 years ago

Hey Arduino Family!

 

I got y first arduino this week and i havent put it down since it arrived, I'm totally hooked.

I'm really a complete novice with coding but I am slowly starting to take it on board and can somewhat understand what the lines of code are doing (even thought I never thought that I would! lol)

 

So I am making this kind ambient lamp from RGB leds

 

I have these two pieces of code that work just fine on their own.

One cycles through colours nicely in a rainbow kinda effect and the other allows the colours to be set using 3 pots that are controlling the PWM signal.

 

What I would like to do is connect a momentary push button switch that takes it out of the rainbow cycle code and places it into 'manual' mode handing over control to the user.

I was thinking that this would perhaps look something like this:

The main loop for the rainbow effect is running, at the top of the loop check to see if the button is pressed and if it is then exit the loop and continue down the program, at which point it would hit the next loop which is the manual control section, perhaps in this loop it could look for the button being pressed again and switch back to the first loop putting it back into rainbow mode again'

 

The two sketches I have been using are pasted below.

any help that will start pointing me in the right direction would be really appreciated. thanks guys. image

 

RGB Rainbow

const int redPin = 11;

const int greenPin = 10;

const int bluePin = 9;

 

void setup() {

  // Start off with the LED off.

  setColourRgb(0,0,0);

}

 

void loop() {

  unsigned int rgbColour[3];

 

  // Start off with red.

  rgbColour[0] = 255;

  rgbColour[1] = 0;

  rgbColour[2] = 0;

 

  // Choose the colours to increment and decrement.

  for (int decColour = 0; decColour < 3; decColour += 1) {

    int incColour = decColour == 2 ? 0 : decColour + 1;

 

    // cross-fade the two colours.

    for(int i = 0; i < 255; i += 1) {

      rgbColour[decColour] -= 1;

      rgbColour[incColour] += 1;

    

      setColourRgb(rgbColour[0], rgbColour[1], rgbColour[2]);

      delay(5);

    }

  }

}

 

void setColourRgb(unsigned int red, unsigned int green, unsigned int blue) {

  analogWrite(redPin, red);

  analogWrite(greenPin, green);

  analogWrite(bluePin, blue);

}

 

 

 

=================================================

 

RGB Color Chooser

 

// Init the Pins used for PWM

const int redPin = 9;

const int greenPin = 10;

const int bluePin = 11;

 

// Init the Pins used for 10K pots

const int redPotPin = 0;

const int greenPotPin = 1;

const int bluePotPin = 2;

 

// Init our Vars

int currentColorValueRed;

int currentColorValueGreen;

int currentColorValueBlue;

 

void setup()

{

  pinMode(redPin, OUTPUT);

  pinMode(greenPin, OUTPUT);

  pinMode(bluePin, OUTPUT);

}

 

void loop()

{

// Read the voltage on each analog pin then scale down to 0-255 and inverting the value for common anode

  currentColorValueRed = (255 - map( analogRead(redPotPin), 0, 1024, 0, 255 ) );

  currentColorValueBlue = (255 - map( analogRead(bluePotPin), 0, 1024, 0, 255 ) );

  currentColorValueGreen = (255 - map( analogRead(greenPotPin), 0, 1024, 0, 255 ) );

 

// Write the color to each pin using PWM and the value gathered above

  analogWrite(redPin, currentColorValueRed);

  analogWrite(bluePin, currentColorValueBlue);

  analogWrite(greenPin, currentColorValueGreen);

 

}

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  • e14 Contributor
    0 e14 Contributor over 12 years ago

    Thanks Paul & Chris,

    Ok so I fused both your suggestions together but now it seems there are syntax errors. I tried moving curly braces and parenthesis around but didnt seem to have much luck.

    here's what I have right now, how is it looking to you?

     

    //===============================================================

    // Global Variables & Constants

    //===============================================================

     

    //Init the Pins used for PWM 

    const int redPin = 9; // LED1 ANODE

    const int greenPin = 10; // LED2 ANODE

    const int bluePin = 11; // LED3 ANODE

     

     

    // Init the Pins used for 10K pots

    const int redPotPin = 0;

    const int greenPotPin = 1;

    const int bluePotPin = 2;

     

     

    // Init our Vars

    int currentColorValueRed;

    int currentColorValueGreen;

    int currentColorValueBlue;

     

     

    //Init the Switch

    const int modePin = 13; // Active HIGH, held low by 4.7K

     

    int mode = 0; // Selector State (Initial state = ALL OFF)

    int val = 0; // Pin 7 HIGH/LOW Status

    int butState = 0; // Last Button State

    int modeState = 0; // Last Mode State

    boolean debug = 1; // 1 = Print Serial Enabled / 0 = disabled

     

    //===============================================================

    // SETUP

    //===============================================================

    void setup () {

    pinMode(redPin, OUTPUT);

    pinMode(greenPin, OUTPUT);

    pinMode(bluePin, OUTPUT);

     

     

    pinMode(modePin, INPUT);

      // Start off with the LED off.

      setColourRgb(0,0,0);

     

     

    if (debug){

    Serial.begin(9600);

    Serial.print("Initial Mode: ");

    Serial.println(mode);

    Serial.print("Setup Complete\n");

    }

    }

    void setColourRgb(unsigned int red, unsigned int green, unsigned int blue) {

      analogWrite(redPin, red);

      analogWrite(greenPin, green);

      analogWrite(bluePin, blue);

    }

     

     

     

     

    void loop(){

     

      If (digitalRead( modePin, HIGH) { 

         mode != mode // toggles mode on push 

       }

       

       If (mode==1) { 

         // code from loop in first example 

          // Read the voltage on each analog pin then scale down to 0-255 and inverting the value for common anode

      currentColorValueRed = (255 - map( analogRead(redPotPin), 0, 1024, 0, 255 ) );

      currentColorValueBlue = (255 - map( analogRead(bluePotPin), 0, 1024, 0, 255 ) );

      currentColorValueGreen = (255 - map( analogRead(greenPotPin), 0, 1024, 0, 255 ) );

     

    // Write the color to each pin using PWM and the value gathered above

      analogWrite(redPin, currentColorValueRed);

      analogWrite(bluePin, currentColorValueBlue);

      analogWrite(greenPin, currentColorValueGreen);

          

       }

     

       else { 

         // code from loop in second example 

    unsigned int rgbColour[3];

     

     

      // Start off with red.

      rgbColour[0] = 255;

      rgbColour[1] = 0;

      rgbColour[2] = 0;

     

      // Choose the colours to increment and decrement.

      for (int decColour = 0; decColour < 3; decColour += 1) {

        int incColour = decColour == 2 ? 0 : decColour + 1;

     

        // cross-fade the two colours.

        for(int i = 0; i < 255; i += 1) {

          rgbColour[decColour] -= 1;

          rgbColour[incColour] += 1;

       

          setColourRgb(rgbColour[0], rgbColour[1], rgbColour[2]);

          delay(5);

        }

      }

    }

        

      

    } 

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  • e14 Contributor
    0 e14 Contributor over 12 years ago in reply to e14 Contributor

    SimpleOneButton.ino: In function 'void loop()':

    SimpleOneButton:59: error: 'If' was not declared in this scope

    SimpleOneButton:59: error: expected `;' before 'digitalRead'

    SimpleOneButton:63: error: expected `;' before '{' token

    SimpleOneButton:77: error: 'else' without a previous 'if'

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  • e14 Contributor
    0 e14 Contributor over 12 years ago in reply to e14 Contributor

    awesomesauce! yeah it registers the mode but also then displays 0 right after it again, so I guess this is debouncing needed which i am scared of, because I dont understand all this 'millis' stuff. lol

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  • e14 Contributor
    0 e14 Contributor over 12 years ago in reply to gadget.iom

    Oh i didnt see the topic had gone to another page. using FALSE threw an error that it hadnt been defined, and before I saw you write LOW I had already used

    'boolean mode = 0' which had worked for me.

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  • e14 Contributor
    0 e14 Contributor over 12 years ago in reply to e14 Contributor

    My heart just fluttered even more when I set the value of mode to '1' first.

    so booting it goes straight into the manual mode, and of course pressing the button then goes into the auto mode nicely.

    so it looks like its working, apart from the fact once its in rainbow mode, I cant exit it to go back to manual. lol

     

    my problem with that is because I have 2 for loops there isnt it? it wont look at the switch while its doing its thing there, which actually, is fine its kinda a feature. you have to hold the button for a few seconds before it will change mode! image

     

    So now I guess its onto debounce

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  • gadget.iom
    0 gadget.iom over 12 years ago in reply to e14 Contributor

    We could kinda cheat...

     

    create another boolean variable called debounce

    boolean debounce = FALSE;

     

    in the IF statement where we check the input pin, add a condition to check that this debounce variable is FALSE. ie

    if (digitalRead(modePin)==HIGH && debounce==FALSE) {

     

    inside the block where you toggle the mode, set this variable called 'debounce' to TRUE.

    debounce = TRUE;

    this will inhibit the if statement from running a second time.

     

     

    Then add another block underneath that to reset the debounce variable once the button is released. ie

    if (digitalRead(modePin)==LOW && debounce==TRUE) {
         debounce = FALSE;
    }

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  • gadget.iom
    0 gadget.iom over 12 years ago in reply to e14 Contributor

    We can look into methods of exiting the auto mode when everything else is working ok.

    Let me know how you get on with this debounce process.

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  • e14 Contributor
    0 e14 Contributor over 12 years ago in reply to gadget.iom

    Do I need to declare true and false first before I create a boolean?

    SimpleOneButton:33: error: 'FALSE' was not declared in this scope

    SimpleOneButton.ino: In function 'void loop()':

    SimpleOneButton:56: error: 'FALSE' was not declared in this scope

    SimpleOneButton:59: error: 'TRUE' was not declared in this scope

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  • gadget.iom
    0 gadget.iom over 12 years ago in reply to e14 Contributor

    Throw your code over...

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  • e14 Contributor
    0 e14 Contributor over 12 years ago in reply to gadget.iom

    //===============================================================
    // Global Variables & Constants
    //===============================================================
    
    
    //Init the Pins used for PWM  
    const int redPin = 9; // LED1 ANODE
    const int greenPin = 10; // LED2 ANODE
    const int bluePin = 11; // LED3 ANODE
    
    
    
    
    // Init the Pins used for 10K pots
    const int redPotPin = 0;
    const int greenPotPin = 1;
    const int bluePotPin = 2;
    
    
    
    
    // Init our Vars
    int currentColorValueRed;
    int currentColorValueGreen;
    int currentColorValueBlue;
    
    
    
    
    
    
    //Init the Switch
    const int modePin = 13; // Active HIGH, held low by 4.7K
    boolean mode = 1; // Selector State (Initial state = ALL OFF)
    //int val = 0; // Pin 13 HIGH/LOW Status
    //int butState = 0; // Last Button State
    //int modeState = 0; // Last Mode State
    boolean debug = 1; // 1 = Print Serial Enabled / 0 = disabled
    boolean debounce = FALSE;
    //===============================================================
    // SETUP
    //===============================================================
    
    
    
    
    void setup () {
     pinMode(redPin, OUTPUT);
     pinMode(greenPin, OUTPUT);
     pinMode(bluePin, OUTPUT);
     pinMode(modePin, INPUT);
     setColourRgb(0,0,0);
     Serial.begin(9600);
     }
    
    
    
    
     void setColourRgb(unsigned int red, unsigned int green, unsigned int blue) {
      analogWrite(redPin, red);
      analogWrite(greenPin, green);
      analogWrite(bluePin, blue);
    }
    
    
    void loop(){
    if (digitalRead(modePin)==HIGH && debounce==FALSE) {  
      // toggles mode on push   
     mode = !mode; 
    debounce = TRUE; 
    if (digitalRead(modePin)==LOW && debounce==TRUE) {
         debounce = FALSE;
    }
    
     Serial.println(mode);  
       } 
        
       if (mode==1) {  
     // Here we hve chosen our first loop AKA 'Manual Control'  
     // Read the voltage on each analog pin then scale down to 0-255 and inverting the value for common anode
      currentColorValueRed = (255 - map( analogRead(redPotPin), 0, 1024, 0, 255 ) );
      currentColorValueBlue = (255 - map( analogRead(bluePotPin), 0, 1024, 0, 255 ) );
      currentColorValueGreen = (255 - map( analogRead(greenPotPin), 0, 1024, 0, 255 ) );
     // Write the color to each pin using PWM and the value gathered above
      analogWrite(redPin, currentColorValueRed);
      analogWrite(bluePin, currentColorValueBlue);
      analogWrite(greenPin, currentColorValueGreen);
           
       }
      
       else {  
    // Here we have chosen out 'Rainbow Cycle'  
       unsigned int rgbColour[3];
    // Start off with red.
      rgbColour[0] = 255;
      rgbColour[1] = 0;
      rgbColour[2] = 0;
    // Choose the colours to increment and decrement.
      for (int decColour = 0; decColour < 3; decColour += 1) {
        int incColour = decColour == 2 ? 0 : decColour + 1;
    // cross-fade the two colours.
        for(int i = 0; i < 255; i += 1) {
          rgbColour[decColour] -= 1;
          rgbColour[incColour] += 1;
          setColourRgb(rgbColour[0], rgbColour[1], rgbColour[2]);
          delay(5);
        }
      }
    }
         
       
    } 

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  • gadget.iom
    0 gadget.iom over 12 years ago in reply to e14 Contributor

    OK... Think I have it solved.

    When you do a verify, the compiler will point you to each line that is causing an issue.

    These lines will have either a TRUE or a FALSE in them

    convert them to lowercase and they will turn orange image

     

    Seems to compile for me when those are repaired.

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  • e14 Contributor
    0 e14 Contributor over 12 years ago in reply to gadget.iom

    it does indeed. lost button functionality now though. nothing comes up in the monitor either. lol

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  • e14 Contributor
    0 e14 Contributor over 12 years ago in reply to gadget.iom

    it does indeed. lost button functionality now though. nothing comes up in the monitor either. lol

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  • gadget.iom
    0 gadget.iom over 12 years ago in reply to e14 Contributor

    I think that's because you need to move the second IF block out of the first. Like this:

      if (digitalRead(modePin)==HIGH && debounce==false) {  
        // toggles mode on push   
        mode = !mode; 
        debounce = true; 
      }
    
    
      if (digitalRead(modePin)==LOW && debounce==true) {
        debounce = false;
      }

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  • e14 Contributor
    0 e14 Contributor over 12 years ago in reply to e14 Contributor

    dude!!!!

    thats so awesome it works! I REALLY APPRECIATE your help on this, I feel like I have learned a lot this past couple of days.

    Having now set that delay time to a lot longer to make the rainbow effect more calm the button has to be pressed for a very long time.

    Any ideas on what I should look at? It's going to mean getting rid of for loops and delays and doing all that 'millis' thing isnt it?

     

    I also have another project for which the code is already written, that I would like to encorporate into this, would you be interested in a paid job to do that?

    thanks again!

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  • gadget.iom
    0 gadget.iom over 12 years ago in reply to e14 Contributor

    It may be possible to move the button checking code into a function, then call that function periodically within your 'for' loops, This would negate the necessity to wait for these cycles to continue.

    Hope that makes sense, it's half 3 in the morning here.

     

    Send me a PM and we can discuss your other project.

     

    Paul

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