millis()/1000 counting away like crazy.

Hi all.

Using MEGA 2560 with LCD Keypad Shield.
Playing around with the sample code provided at http://www.dfrobot.com/wiki/index.php?title=Arduino_LCD_KeyPad_Shield_(SKU:_DFR0009)

Code:

//Sample using LiquidCrystal library
#include <LiquidCrystal.h>

/*******************************************************

This program will test the LCD panel and the buttons
Mark Bramwell, July 2010

********************************************************/

// select the pins used on the LCD panel
LiquidCrystal lcd(8, 9, 4, 5, 6, 7);

// define some values used by the panel and buttons
int lcd_key = 0;
int adc_key_in = 0;
#define btnRIGHT 0
#define btnUP 1
#define btnDOWN 2
#define btnLEFT 3
#define btnSELECT 4
#define btnNONE 5

// Set up a bunch of arrays for future usage in matrix
String profileName[5];
String stepOneName[5];
int stepOneTemp[5];
int stepOneTime[5];
String stepTwoName[5];
int stepTwoTemp[5];
int stepTwoTime[5];
String stepThreeName[5];
int stepThreeTemp[5];
int stepThreeTime[5];
String stepFourName[5];
int stepFourTemp[5];
int stepFourTime[5];

String effectProfileName[2];
String effectHigh[2];

int selectedProfile = 0;
int tempLossInSystem = 0;

// read the buttons
int read_LCD_buttons()
{
adc_key_in = analogRead(0); // read the value from the sensor
// my buttons when read are centered at these valies: 0, 144, 329, 504, 741
// we add approx 50 to those values and check to see if we are close
if (adc_key_in > 1000) return btnNONE; // We make this the 1st option for speed reasons since it will be the most likely result
if (adc_key_in < 50) return btnRIGHT;
if (adc_key_in < 195) return btnUP;
if (adc_key_in < 380) return btnDOWN;
if (adc_key_in < 555) return btnLEFT;
if (adc_key_in < 790) return btnSELECT;
return btnNONE; // when all others fail, return this...
}

void setup()
{

//HELP NEEDED HERE - START
// setupDefaultSteps(); // Populate with some default values
//HELP NEEDED HERE - STOP

delay(1000);
lcd.begin(16, 2); // start the library
lcd.setCursor(0,0);
lcd.print("Push the buttons"); // print a simple message
}

void loop()
{
lcd.setCursor(9,1); // move cursor to second line "1" and 9 spaces over
lcd.print(millis()/1000); // display seconds elapsed since power-up

lcd.setCursor(0,1); // move to the begining of the second line
lcd_key = read_LCD_buttons(); // read the buttons

switch (lcd_key) // depending on which button was pushed, we perform an action
{
case btnRIGHT:
{
lcd.print("RIGHT ");
break;
}
case btnLEFT:
{
lcd.print("LEFT ");
break;
}
case btnUP:
{
lcd.print("UP ");
break;
}
case btnDOWN:
{
lcd.print("DOWN ");
break;
}
case btnSELECT:
{
lcd.print("SELECT");
break;
}
case btnNONE:
{
lcd.print("NONE ");
break;
}
}

}

void setupDefaultSteps()
{
profileName[0] = "1 step Light";
stepOneName[0] = "Strike temp.";
stepOneTemp[0] = 71;
stepOneTime[0] = 2;
stepTwoName[0] = "Sacc. rest";
stepTwoTemp[0] = 64;
stepTwoTime[0] = 75;
stepThreeName[0] = "Mash out";
stepThreeTemp[0] = 76;
stepThreeTime[0] = 10;
stepFourName[0] = "";
stepFourTemp[0] = 0;
stepFourTime[0] = 0;

profileName[1] = "1 step Medium";
stepOneName[1] = "Strike temp.";
stepOneTemp[1] = 73;
stepOneTime[1] = 2;
stepTwoName[1] = "Sacc. rest";
stepTwoTemp[1] = 67;
stepTwoTime[1] = 60;
stepThreeName[1] = "Mash out";
stepThreeTemp[1] = 76;
stepThreeTime[1] = 10;
stepFourName[1] = "";
stepFourTemp[1] = 0;
stepFourTime[1] = 0;

profileName[2] = "1 step Full";
stepOneName[2] = "Strike temp.";
stepOneTemp[2] = 75;
stepOneTime[2] = 2;
stepTwoName[2] = "Sacc. rest";
stepTwoTemp[2] = 69;
stepTwoTime[2] = 45;
stepThreeName[2] = "Mash out";
stepThreeTemp[2] = 76;
stepThreeTime[2] = 10;
stepFourName[2] = "";
stepFourTemp[2] = 0;
stepFourTime[2] = 0;

profileName[3] = "2 steps Light";
stepOneName[3] = "Strike temp.";
stepOneTemp[3] = 54;
stepOneTime[3] = 2;
stepTwoName[3] = "Protein rest";
stepTwoTemp[3] = 50;
stepTwoTime[3] = 30;
stepThreeName[3] = "Sacc. rest";
stepThreeTemp[3] = 64;
stepThreeTime[3] = 75;
stepFourName[3] = "Mash out";
stepFourTemp[3] = 76;
stepFourTime[3] = 10;

profileName[4] = "2 steps Medium";
stepOneName[4] = "Strike temp.";
stepOneTemp[4] = 54;
stepOneTime[4] = 2;
stepTwoName[4] = "Protein rest";
stepTwoTemp[4] = 50;
stepTwoTime[4] = 30;
stepThreeName[4] = "Sacc. rest";
stepThreeTemp[4] = 67;
stepThreeTime[4] = 45;
stepFourName[4] = "Mash out";
stepFourTemp[4] = 76;
stepFourTime[4] = 10;

profileName[5] = "2 steps Full";
stepOneName[5] = "Strike temp.";
stepOneTemp[5] = 54;
stepOneTime[5] = 2;
stepTwoName[5] = "Protein rest";
stepTwoTemp[5] = 50;
stepTwoTime[5] = 30;
stepThreeName[5] = "Sacc. rest";
stepThreeTemp[5] = 67;
stepThreeTime[5] = 45;
stepFourName[5] = "Mash out";
stepFourTemp[5] = 76;
stepFourTime[5] = 10;
}

When I have the following section commented out the "lcd.print(millis()/1000);" prints every second since start as it suppose to

Code:

//HELP NEEDED HERE - START
// setupDefaultSteps(); // Populate with some default values
//HELP NEEDED HERE - STOP

But when I change like below to populate arrays in the function "setupDefaultSteps" "lcd.print(millis()/1000);" prints like crazy.

Code:

//HELP NEEDED HERE - START
setupDefaultSteps(); // Populate with some default values
//HELP NEEDED HERE - STOP

Anyone know what I am doing wrong or why it behaves this way?

Br,
Magnus

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