State changes for more than just on and off

Projects Programming
1

I'm new to Arduino, C++ and programming in general. I need to figure out a way to get each press of the push button to cycle through the RGB LED from red, green, blue, yellow, magenta, cyan and white. I can get all seven colors to cycle through on a delay but I cannot figure out how to change this to being controlled by the push button. Perhaps I've used the wrong search terms but everything that I find is for simply turning an LED on and off. I previously figured out how to do that but my understanding isn't strong enough to translate this to each button press causing a change in the color. Here is my code for the on/off push button

int ledState = LOW;
int lastKnownButtonState = LOW;
unsigned long lastTimeButtonChanged = 0;
unsigned int debounceDelay = 50;
int buttonState = LOW;
unsigned int ledPin = 13;
unsigned int buttonPin = 8;

void setup() {
  pinMode( ledState, LOW);
  pinMode( lastKnownButtonState, LOW);
  pinMode( lastTimeButtonChanged, 0);
  pinMode( buttonState, LOW);
  pinMode( ledPin, OUTPUT);
  pinMode( buttonPin, INPUT);
}

void loop() {
  int buttonValue = digitalRead(buttonPin);
  if (buttonValue != lastKnownButtonState) {
    lastTimeButtonChanged = millis();
  }
  if((millis() - lastTimeButtonChanged) > debounceDelay) {
    if (buttonValue != buttonState) {
      buttonState = buttonValue;
      if (buttonState == HIGH) {
        ledState = !ledState;
      }
    }
  }
digitalWrite(ledPin, ledState);
lastKnownButtonState = buttonValue;
}

And this is my code for cycling through the colors on a delay

const int redPin = 9;
const int greenPin = 10;
const int bluePin = 11;

void setup() {
  pinMode(redPin, OUTPUT);
  pinMode(greenPin,OUTPUT);
  pinMode(bluePin, OUTPUT);
}

void loop() {
  ///Activates pin 9 for the red anode
  digitalWrite(redPin, HIGH);     //Red
  delay(1000);

  //Turns of the RGB LED
  digitalWrite(redPin, LOW);
  digitalWrite(greenPin, LOW);
  digitalWrite(bluePin, LOW);

  digitalWrite(greenPin, HIGH);   //Green
  delay(1000);

  digitalWrite(redPin, LOW);
  digitalWrite(greenPin, LOW);
  digitalWrite(bluePin, LOW);

  digitalWrite(bluePin, HIGH);    //Blue
  delay(1000);

  digitalWrite(redPin, LOW);
  digitalWrite(greenPin, LOW);
  digitalWrite(bluePin, LOW);

  digitalWrite(redPin, HIGH);     //Yellow
  digitalWrite(greenPin, HIGH);
  delay(1000);

  digitalWrite(redPin, LOW);
  digitalWrite(greenPin, LOW);
  digitalWrite(bluePin, LOW);

  digitalWrite(redPin, HIGH);     //Magenta
  digitalWrite(bluePin, HIGH);
  delay(1000);

  digitalWrite(redPin, LOW);
  digitalWrite(greenPin, LOW);
  digitalWrite(bluePin, LOW);

  digitalWrite(greenPin, HIGH);   //Cyan
  digitalWrite(bluePin, HIGH);
  delay(1000);

  digitalWrite(redPin, LOW);
  digitalWrite(greenPin, LOW);
  digitalWrite(bluePin, LOW);

  digitalWrite(redPin, HIGH);     //White
  digitalWrite(bluePin, HIGH);
  digitalWrite(greenPin, HIGH);
  delay(1000);

  digitalWrite(redPin, LOW);
  digitalWrite(greenPin, LOW);
  digitalWrite(bluePin, LOW);
}

If someone could help me out with this or point me to something that would help me I would really appreciate because I'm lost. Thanks

3

I thought about that. I'm just not so sure how to do that. I had set up the code with cases 1-7 for the switch. Maybe I messed up the if statement before the switch. I'll try that again.

5

Yeah, I got mad and deleted the whole. I retrospect, not smart move. I'll post more once I have some code to post. Thanks

6

Did you look at the StateChangeDetection example? It runs a counter: you just need an "if" to put the counter back to 1 instead of 8.