Aquaneers

#define redLED 3
#define greenLED 6
#define blueLED 5

/* Note the colours of the sensors below correspond to the wire colours used in my build*/
#define yellowSensor 0 
#define purpleSensor 1
#define pinkSensor 2

#define delayTime 100

struct SensorReading{
  int pink;
  int yellow;
  int purple;
};


void setup() {
  // put your setup code here, to run once:
  pinMode(redLED, OUTPUT);
  pinMode(greenLED, OUTPUT);
  pinMode(blueLED, OUTPUT);

  digitalWrite(redLED, HIGH);
  digitalWrite(greenLED, HIGH);
  digitalWrite(blueLED, HIGH);

  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  SensorReading s;
  char buffer[200];
  
  redOn();
  delay(delayTime);
  readSensors(s);

  sprintf(buffer, "Red %d %d %d",s.pink, s.purple, s.yellow);
  Serial.println(buffer);
  
  greenOn();
  delay(delayTime);
  readSensors(s);
  
  sprintf(buffer, "Green %d %d %d",s.pink, s.purple, s.yellow);
  Serial.println(buffer);
  
  blueOn();
  delay(delayTime);
  readSensors(s);

  sprintf(buffer, "Blue %d %d %d",s.pink, s.purple, s.yellow);
  Serial.println(buffer);
  
  whiteOn();
  delay(delayTime);
  readSensors(s);

  sprintf(buffer, "White %d %d %d",s.pink, s.purple, s.yellow);
  Serial.println(buffer);

  delay(5000);
}


void redOn(){
  digitalWrite(redLED, LOW);
  digitalWrite(greenLED, HIGH);
  digitalWrite(blueLED, HIGH);}

void greenOn(){
  digitalWrite(redLED, HIGH);
  digitalWrite(greenLED, LOW);
  digitalWrite(blueLED, HIGH);}

void blueOn(){
  digitalWrite(redLED, HIGH);
  digitalWrite(greenLED, HIGH);
  digitalWrite(blueLED, LOW);}

void whiteOn(){
  digitalWrite(redLED, LOW);
  digitalWrite(greenLED, LOW);
  digitalWrite(blueLED, LOW);}

void readSensors(SensorReading& s ){
  s.pink = analogRead(pinkSensor);
  s.purple = analogRead(purpleSensor);
  s.yellow= analogRead(yellowSensor);
}