EJERCICIOS ARDUINO TANDA 3

Ejercicio 1. Puerta automática

2. Sensor de distancia ultrasónico

3. Sensor ultrasónico con pantalla LCD

4. Greenhouse simple

#define ServoPin 3
int sensePin = A0;  					//This is the Arduino Pin that will read the sensor output
int sensorInput;    					//The variable we will use to store the sensor input
double temp;        					//The variable we will use to store temperature in degrees.
void servoChange(int); 						// function for setting servo position
void setup()
{
	pinMode(ServoPin,OUTPUT);
  
  	OCR0A = 0xAF;
	TIMSK0 |= _BV(OCIE0A);

  	Serial.begin(9600); 				// start the serial port at 9600 baud (default)
}
//INTERRUPT FUNCTION - repeats every 1ms
SIGNAL(TIMER0_COMPA_vect)
{
  	sensorInput = analogRead(A0); 		//read the analog sensor and store it
  	temp = (double) sensorInput / 1024; 	//find the percentage of input reading
  	temp = temp * 5;                     	//multiply by 5V to get voltage
  	temp = temp - 0.5;                   	//Subtract the offset 
  	temp = temp * 100;   //Convert to degrees 
}
void loop()
{
  	int pw;
  
  	if(temp > 25)//fully open
    {
      pw = 2500;       
      Serial.println("OPEN");
    }
      
    else if(temp <= 20) //fully closed
    {
   	  pw = 0; 
      Serial.println("CLOSED");
    } 
 
  	else if(temp > 20 && temp <= 25)
    {
      pw = 1500; 
      Serial.println("HALF");
    }
  	servoChange(pw);
}
void servoChange(int x)
{
  digitalWrite(ServoPin, HIGH); 
  delayMicroseconds(x);
  digitalWrite(ServoPin,LOW);
  delay(15);
  return ;
}

5. Alimentador de gatos (o de linces)

#include <Servo.h>

Servo myservo;  // create servo object to control a servo
int buttonState = 0; //variable for reading the pushbutton status
const int buttonPin = 2;     // the number of the pushbutton pin


int pos;    
int num;	//number of times the dog presses the bone

void setup() {
  myservo.attach(9);  // attaches the servo on pin 9 
}

void loop() {

    
  buttonState = digitalRead(buttonPin);//read the state of the pushbotton value;

  if (buttonState ==HIGH){
    
  for (pos = 0; pos <= 180; pos += 1) { // goes from 0 degrees to 180 degrees in steps of 1 degree
    myservo.write(pos);              // tell servo to go to position in variable 'pos'
    delay(15);                       // waits 15ms for the servo to reach the position
  }
    delay(5000);					//wait for bone to be released
  for (pos = 180; pos >= 0; pos -= 1) { // goes from 180 degrees to 0 degrees
    myservo.write(pos);              // tell servo to go to position in variable 'pos'
    delay(15);                       // waits 15ms for the servo to reach the position

  }
}
}