Oppitunti 3

Oppitunti 3: Hämäräkytkin ja etäisyysmittari

2018-11-10T14:58:24+02:00

LDR-vastuksen arvot

2018-11-10T15:25:41+02:00

// LDR-vastuksen arvot
#define SENSOR 0
int val = 0;

void setup() {
Serial.begin(9600);
}

void loop() {
val = analogRead(SENSOR);
Serial.println(val);
delay(100);
}

Hämäräkytkimen koodi

2018-11-10T15:14:46+02:00

#define LED 13
#define LDRPIN A0
#define RAJA 300 // valojen sammutus

int val = 0;

void setup() {
pinMode(LED, OUTPUT);
}

void loop() {
val = analogRead(LDRPIN);
if (val < RAJA){
digitalWrite(13, HIGH);
delay(10000);
} else {
digitalWrite(13, LOW);
}
}

Etäisyysmittarin koodi

2018-11-10T14:56:54+02:00

// Etäisyysmittarin koodi

#define trigPin 9

#define echoPin 10

long duration;

int distance;

void setup() {

pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output

pinMode(echoPin, INPUT); // Sets the echoPin as an Input

Serial.begin(9600); // Starts the serial communication

}

void loop() {

// Clears the trigPin

digitalWrite(trigPin, LOW);

delayMicroseconds(2);

// Sets the trigPin on HIGH state for 10 micro seconds

digitalWrite(trigPin, HIGH);

delayMicroseconds(10);

digitalWrite(trigPin, LOW);

// Reads the echoPin, returns the sound wave travel time in microseconds

duration = pulseIn(echoPin, HIGH);

// Calculating the distance

distance = duration * 0.034 / 2;

// Prints the distance on the Serial Monitor

Serial.print("Etäisyys: ");

Serial.println(distance);

}

NewPing esimerkki koodi

2018-11-10T15:23:58+02:00

#include <NewPing.h>

#define TRIGGER_PIN  12
#define ECHO_PIN     11
#define MAX_DISTANCE 200

NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE);

void setup() {
  Serial.begin(115200);
}

void loop() {
  delay(50);
  Serial.print("Ping: ");
  Serial.print(sonar.ping_cm());
  Serial.println("cm");
}