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Exercise 1 

const int red_led_pin=3;
const int yellow_led_pin=4;
const int green_led_pin=5;

void setup() {
  // put your setup code here, to run once:
  pinMode(red_led_pin,OUTPUT);
  pinMode(yellow_led_pin,OUTPUT);
  pinMode(green_led_pin,OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:

digitalWrite(red_led_pin,HIGH);
delay(100);
digitalWrite(red_led_pin,LOW);
delay(100);
digitalWrite(red_led_pin,HIGH);
delay(100);
digitalWrite(red_led_pin,LOW);
delay(70);

digitalWrite(yellow_led_pin,HIGH);
delay(100);
digitalWrite(yellow_led_pin,LOW);
delay(100);
digitalWrite(yellow_led_pin,HIGH);
delay(100);
digitalWrite(yellow_led_pin,LOW);
delay(70);

digitalWrite(green_led_pin,HIGH);
delay(100);
digitalWrite(green_led_pin,LOW);
delay(100);
digitalWrite(green_led_pin,HIGH);
delay(100);
digitalWrite(green_led_pin,LOW);
delay(70);


}

Exercise 2

// the leds are coonected to pins 3,4,5:

const int Red_led = 3;

const int Yellow_led = 4;

const int Green_led = 5;

 

 // the poteniometer is coonectedto pin A0:

 const int Poten_pin = A0;

 

 // defin varibles to contain data:

 int poten_val;

 int rhythm;


 

void setup() {

  // put your setup code here, to run once:

Serial.begin(9600);

 

pinMode(Red_led, OUTPUT);

pinMode(Yellow_led, OUTPUT);

pinMode(Green_led, OUTPUT);

}

 

void loop() {

  // put your main code here, to run repeatedly:

poten_val = analogRead(Poten_pin);

Serial.println(poten_val);

 

rhythm = map(poten_val , 0 , 1023 , 50 , 1000);

 

// tern on RED

digitalWrite(Red_led, HIGH);

digitalWrite(Yellow_led, LOW);

digitalWrite(Green_led, LOW);

 

delay(rhythm);

 

// tern on YELLOW

digitalWrite(Red_led, LOW);

digitalWrite(Yellow_led, HIGH );

digitalWrite(Green_led, LOW);

 

delay(rhythm);

 

// tern on GREEN

digitalWrite(Red_led, LOW);

digitalWrite(Yellow_led, LOW);

digitalWrite(Green_led, HIGH);

 

delay(rhythm);

}

Exercise 3

#include <LCD_I2C.h>
 
LCD_I2C lcd(0x27, 16,2);

const int H20_sensor = A0;
int H20_level;

void setup() {
  // put your setup code here, to run once:
lcd.begin();
lcd.backlight();
}

void loop() {
  // put your main code here, to run repeatedly:
lcd.setCursor(0, 0);
lcd.print("THIS IS A");
lcd.setCursor(4, 1);
lcd.print("WATER SENSOR");
delay(1000);
lcd.clear();

H20_level = analogRead(H20_sensor);
lcd.setCursor(0, 0);
lcd.print("WATER LEVEL IS:");
lcd.setCursor(0, 1);
lcd.print(H20_level);
delay(1000);
lcd.clear();
}
 

IMG-7169.jpg
Exercise 4

#include <LCD_I2C.h>

 

LCD_I2C lcd(0x27, 16,2);

 

//הגדרת כפתור למספר פין

const int button1 = 8;

const int button2 = 10;


 

const int dtimeL = 1000;

const int dtimeS = dtimeL/2;

 

// הגדרת רמקול למספר פין

const int buzz_pin = 2;

 

//הגדרת הרץ לכל תו

int G = 392;

int F = 349;

int E = 329;

int D = 293;

int C = 261;

int B = 246;

int A = 220;

 

void setup() {

  // put your setup code here, to run once:

lcd.begin();

lcd.backlight();

Serial.begin(9600);

pinMode(button1,INPUT_PULLUP);

pinMode(button2,INPUT_PULLUP);

}

 

void loop() {

  // הוראת טקסט

lcd.setCursor(0, 0);

lcd.print("CHOOSE ONE OF");

lcd.setCursor(0, 1);

lcd.print("THE TWO SONGS:");

delay(2000);

lcd.clear();

 

lcd.setCursor(0, 0);

lcd.print("SONG NUM 1:");

lcd.setCursor(0, 1);

lcd.print("YONATAN HAKATAN");

delay(2000);

lcd.clear();

 

lcd.setCursor(0, 0);

lcd.print("SONG NUM 2:");

lcd.setCursor(0, 1);

lcd.print("MATANOT KTANOT");

delay(2000);

lcd.clear();

 

lcd.setCursor(0, 0);

lcd.print("WAITING FOR YOUR");

lcd.setCursor(0, 1);

lcd.print("CHOICE");

delay(3000);

lcd.clear();

 

// הוראת הפסקה עד ללחיצה על כפתור

while( digitalRead(button1) == 1 && digitalRead(button2) == 1 ){

}

 

// לחיצה על כפתור 1 תנגן שיר

if(digitalRead(button1) == 0){

tone(buzz_pin, G, 500);

delay(dtimeS);

tone(buzz_pin, E, 500);

delay(dtimeS);

tone(buzz_pin, E, 500);

delay(dtimeL);

tone(buzz_pin, F, 500);

delay(dtimeS);

tone(buzz_pin, D, 500);

delay(dtimeS);

tone(buzz_pin, D, 500);

delay(dtimeL);

tone(buzz_pin, C, 500);

delay(dtimeS);

tone(buzz_pin, D, 500);

delay(dtimeS);

tone(buzz_pin, E, 500);

delay(dtimeS);

tone(buzz_pin, F, 500);

delay(dtimeS);

tone(buzz_pin, G, 500);

delay(dtimeS);

tone(buzz_pin, G, 500);

delay(dtimeS);

tone(buzz_pin, G, 500);

delay(dtimeL);

noTone(buzz_pin);

}

 

if(digitalRead(button2) == 0){

tone(buzz_pin, G, 500);

delay(dtimeS);

tone(buzz_pin, G, 500);

delay(dtimeS);

tone(buzz_pin, B, 500);

delay(dtimeS);

tone(buzz_pin, D, 500);

delay(dtimeS);

tone(buzz_pin, D, 500);

delay(dtimeL);

tone(buzz_pin, B, 500);

delay(dtimeS);

tone(buzz_pin, A, 500);

delay(dtimeL);

tone(buzz_pin, A, 500);

delay(dtimeS);

tone(buzz_pin, B, 500);

delay(dtimeS);

tone(buzz_pin, C, 500);

delay(dtimeL);

tone(buzz_pin, D, 500);

delay(dtimeS);

tone(buzz_pin, C, 500);

delay(dtimeS);

tone(buzz_pin, B, 500);

delay(dtimeS);

tone(buzz_pin, G, 500);

delay(dtimeL);

noTone(buzz_pin);

}

}

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