Week 12 : Arduino programming

Arduino programming based on the information for each fruits to determine glycemic index range.

Fruits	Range
Watermelon	72 (+-) 3
Orange	42 (+-) 3
Apple	38 (+-)2
Mango	56 (+-)2
Pepsi	55 (+-)3

LOW < 55 , MEDIUM 56-69 , HIGH > 70

ARDUINO PROGRAMMING :

// set pin numbers:

const int sw1 = 6; // the number of the pushbutton pin1

const int sw2 = 7; // the number of the pushbutton pin2

const int sw3 = 8; // the number of the pushbutton pin3

const int sw4 = 9; // the number of the pushbutton pin4

const int sw5 = 10; // the number of the pushbutton pin5

const int buzzer = 1; // the number of the Buzzer pin

int sensorPin = A0; // select the input pin for the potentiometer

int sensorValue = 0; // variable to store the value coming from the sensor

int mode = 0;

// include the library code:

#include

// initialize the library with the numbers of the interface pins

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

void show_low()

{

lcd.setCursor(12,1);

lcd.print("Low ");

}

void show_med()

{

lcd.setCursor(12,1);

lcd.print("Med ");

}

void show_high()

{

lcd.setCursor(12,1);

lcd.print("High");

}

void setup() {

pinMode(sw1, INPUT);

pinMode(sw2, INPUT);

pinMode(sw3, INPUT);

pinMode(sw4, INPUT);

pinMode(sw5, INPUT);

pinMode(buzzer,OUTPUT);

// set up the LCD's number of columns and rows:

lcd.begin(16, 2);

// Print a message to the LCD.

lcd.print("Sugar Detector!");

digitalWrite(buzzer,HIGH);

delay(1000);

digitalWrite(buzzer,LOW);

}

void loop() {

if(digitalRead(sw1)==1)

{

lcd.clear();

lcd.setCursor(0,0);

lcd.print("WaterMelon");

mode=1;

}

if(digitalRead(sw2)==1)

{

lcd.clear();

lcd.setCursor(0,0);

lcd.print("Orange");

mode=2;

}

if(digitalRead(sw3)==1)

{

lcd.clear();

lcd.setCursor(0,0);

lcd.print("Apple");

mode=3;

}

if(digitalRead(sw4)==1)

{

lcd.clear();

lcd.setCursor(0,0);

lcd.print("Mango");

mode=4;

}

if(digitalRead(sw5)==1)

{

lcd.clear();

lcd.setCursor(0,0);

lcd.print("Carbonate Drink");

mode=5;

}

sensorValue = analogRead(sensorPin);

sensorValue = sensorValue/6.5;

lcd.setCursor(0,1);

lcd.print("Value: ");

lcd.setCursor(6,1);

lcd.print(sensorValue,DEC);

if(mode==1)

{

if(sensorValue<55)

show_low();

else if(sensorValue>=55 && sensorValue<70)

show_med();

else

show_high();

}

else if(mode==2)

{

if(sensorValue<45)

show_low();

else if(sensorValue>=45 && sensorValue<70)

show_med();

else

show_high();

}

else if(mode==3)

{

if(sensorValue<40)

show_low();

else if(sensorValue>=40 && sensorValue<70)

show_med();

else

show_high();

}

else if(mode==4)

{

if(sensorValue<58)

show_low();

else if(sensorValue>=58 && sensorValue<70)

show_med();

else

show_high();

}

else if(mode==5)

{

if(sensorValue<53)

show_low();

else if(sensorValue>=53 && sensorValue<62)

show_med();

else

show_high();

}

delay(100);

}