Lesson 9: Activity 2(ii) (Buttons)

Lesson 9 
Activity 2 Part (ii) - Buttons

Codes:

#include <LiquidCrystal.h>
LiquidCrystal lcd(8, 9, 4, 5, 6, 7);
int readkey;
void setup() {
  lcd.begin(16, 2);
  lcd.print("How are you");
  lcd.setCursor(0, 1);
  lcd.print("today?");
}
void loop()
{
  readkey=analogRead(0);
  if (readkey<50) {
  lcd.clear();
  lcd.print("Happy");
  }
  else if(readkey<195) {
    lcd.clear();
    lcd.print("Sad");
  }
  else if(readkey<380) {
    lcd.clear();
    lcd.print("Excited");
  }
  else if(readkey<790) {
    lcd.clear();
    lcd.print("Bored");
  }
}

Lesson 9: Activity 2(LCD Shield)

Lesson 9 

Activity 2: LCD Shield

Material Needed:

• Laptop
• USB cable
• Arduino Board
• LCD Shield
• 
  

Codes:

#include <LiquidCrystal.h>

LiquidCrystal lcd (8,9,4,5,6,7);

void setup()

{

  lcd.begin(16,2);

}

void loop()

{

  lcd.home();

  lcd.print("How are you ");

  delay (500);

  lcd.setCursor(0,1);

  lcd.print("today???");

  delay (500);

  lcd.clear();

  delay (500);

}

* Note: Please change the Pin value from the previous activity

Lesson 9: Activity 1(Displaying Characters on LCD Panel)

Lesson 9

Activity 1: Displaying Characters on LCD Panel

Material Needed:

• Laptop
• USB cable
• Breadboard
• Arduino Board
• LCD Panel
• 14 x Jumper Wires

Codes:

#include <LiquidCrystal.h>

LiquidCrystal lcd (8,9,10,11,12,13);

void setup()

{ 
___._____(16,2);

}

void loop()

{

  lcd.home();

  lcd.print("How are you");

  delay (1000);

  lcd.setCursor(0,1);          

 ___._____("today 1R3???");

delay (1000);

____.______();

delay (1000);

}

Pin No. : 

Pin 1: GND Bus
Pin 2: Live Bus
Pin 3: GND Bus
Pin 4: Digital Pin 8
Pin 5: GND Bus
Pin 6: Digital Pin 9
Pin 7: Empty
Pin 8: Empty
Pin 9: Empty
Pin 10: Empty
Pin 11: Digital Pin 10
Pin 12: Digital Pin 11
Pin 13: Digital Pin 12
Pin 14: Digital Pin 13
Pin 15: Live Bus
Pin 16: GND Bus

Lesson 8: Activity 1(Testing Heart Rate Sensor)

Lesson 8
Activity 1 - Testing Heart Rate Sensor

Materials Needed:

• Arduino Board
• Breadboard
• USB Cable
• Laptop
• Heart Rate ear-clip sensor
• 5 x Jumper Wires

Codes:

const int heartPin = ?;                         

                     

void setup()

{

  Serial.begin(9600);                    

  pinMode(heartPin, ?);                 

}

void loop()

{

  if(digitalRead(heartPin)>0)

    {              

    Serial.println("Reading");              

    }

else

    {

     Serial.println("0");                 

    }

}

Lesson 7: Activity 2 (Temperature Warning System)

Lesson 7
Activity 2 - Temperature Warning System

Materials Needed:

• Arduino Board
• Breadboard
• USB Cable
• Laptop
• Temperature Sensor
• Buzzer
• 1 x 330Ω
• 1 x LED
• 9 x Jumper Wires

Codes:

int analogVal;

const int tempPin = A0;

float voltage;

float temperature;

const int led = ?;

const int buzzer = 6;

void setup()

{

  pinMode(tempPin, INPUT);

  pinMode(led,?); 

  pinMode(buzzer,?);

  Serial.begin(9600);

}

void loop()

{

  analogVal=analogRead(tempPin);

  voltage = (analogVal/1024.0)*5.0;

  temperature = 100*voltage-50;     

  Serial.println(temperature);

  delay(200);       

  if (temperature>30.0)

  {

   digitalWrite (led,?);

   digitalWrite (buzzer,?);

   delay (100);

  }

    else

    digitalWrite(led,LOW);

    digitalWrite(buzzer,LOW);

    delay (100);                      

}