March Madness Challenge - Day 23

Today's March Madness will be done in less than 30 minutes. Tick, Tick, Tick, .... Erg, bugs, took 2 hours, and still bugs

I was thinking how neat it would be to be able to reach out to a serial device through the browser. Did some quick searching and found the Seriality API browser plugin. Tested it out and it works well on Mac OS X, and in Firefox. So for tonight I will take my JSON RGB Calibration project and hook it to a web page hosted locally in a web browser.

Started to move my code over to Bit Bucket. The project code can be found here: March Madness

I've got a nifty on off switch. It's a pause on color and other weird things, thing.

//*
* The RGB Calibrator
* 
* Find, and monitor max brightness of red, green, and blue in an RGB led
*/


int redPin = 9;    // LED connected to digital pin 9
int greenPin = 11;
int bluePin = 10;
int pins[] = 
{
    redPin, greenPin, bluePin
};
int i =0;

int photoPin = 0;
int potPin = 1;

int photoVal = -1;
int r,g,b = -1;
int rmax, gmax, bmax = 0;
int rmin, gmin, bmin = 1024;
char on = '-';
long interval = 500; 
long previousMillis = 0;

void setup()  
{ 
  Serial.begin(9600);
 // Serial.println("Setup done");
  
  pinMode(redPin, OUTPUT);     
  pinMode(greenPin, OUTPUT);     
  pinMode(bluePin, OUTPUT);  
  digitalWrite(redPin, HIGH);
  digitalWrite(greenPin, HIGH);
  digitalWrite(bluePin, HIGH); 

  digitalWrite(redPin, LOW);
  delay(1000);
  digitalWrite(redPin, HIGH);

  digitalWrite(greenPin, LOW);
  delay(1000);
  digitalWrite(greenPin, HIGH);

  digitalWrite(bluePin, LOW);
  delay(1000);
  digitalWrite(bluePin, HIGH);
  
} 


void loop()  
{
  if (i > 2) //The number of LEDS being measured
  {
     i = 0; 
  }
  if (Serial.available()) {
    on = Serial.read();
  } 
  
  if (on == '!' ) {
    digitalWrite(pins[i], LOW);     
    photoVal = analogRead(photoPin);
  
  
    switch (i)
    {
     case 0: //red led
       r = photoVal;
       rmin = min(rmin, r);
       rmax = max(rmax, r);
       break;
     case 1: //green led
       g = photoVal;
       gmin = min(gmin, g);
       gmax = max(gmax, g);
       break;
     case 2: //blue led
       b = photoVal;
       bmin = min(bmin, b);
       bmax = max(bmax, b);
      break;
     default: //should not happen
       break;
      
    }
    Serial.print ("{ \"entry\" :");
    Serial.print(" { \"photoVal\" : ");
    Serial.print(photoVal);
    
    Serial.print(", \"rmax\" : ");
    Serial.print(rmax);
    Serial.print(", \"gmax\" : ");
    Serial.print(gmax);
    Serial.print(", \"bmax\" : ");
    Serial.print(bmax);
    
    Serial.print(", \"rmin\" : ");
    Serial.print(rmin);
    Serial.print(", \"gmin\" : ");
    Serial.print(gmin);
    Serial.print(", \"bmin\" : ");
    Serial.print(bmin);
    
    Serial.print(", \"r\" : ");
    Serial.print(r);
    Serial.print(", \"g\" : ");
    Serial.print(g);
    Serial.print(", \"b\" : ");
    Serial.print(b);
    Serial.println("}}");
    
    if (millis() - previousMillis > interval) {
      previousMillis = millis();   
      digitalWrite(pins[i], HIGH);
      i++;    
     }
  }
  else 
  { 
    digitalWrite(pins[i], HIGH);
  }
 }