Program Arduino Rangkaian Dimmer

Program ini dibuat sesuai dengan rangakain dimmer yang sudah saya bahas pada artikel sebelumnya.
Program dibuat sesuai software aplikasi arduino

Program Arduino

Baca juga artikel sebelumnya ---  Rangkaian Dimmer 

1. Proram Dimmer yang dibuat dengan input manual pada serial monitor

//============================
int ledPin = 11;
void setup()
{
Serial.begin(9600);
Serial.println("Serial connection started, waiting for instructions...n0 = Off n1 = 25% n2 =50% n3 = 75% n4 = 100%");
}

void loop ()
{
if (Serial.available()) {
char ser = Serial.read(); //read serial as a character

//NOTE because the serial is read as “char” and not “int”, the read value must be compared to character numbers
//hence the quotes around the numbers in the case statement

switch (ser)
{
case '0':
analogWrite (ledPin, 0);
break;

case '1':
analogWrite(ledPin, 25); //input angka "1" dimasukkan melalui serial monitor software arduino
break;

case '2':
analogWrite(ledPin, 50); //angka "50" merupakan nilai yang berpengaruh pada intensitas lampu
break;

case '3':
analogWrite(ledPin, 120);
break;

case '4':
analogWrite(ledPin, 175);
break;

case '5':
analogWrite(ledPin, 245);
break;

default:
Serial.println ("Invalid entry");
}
}
}

2. Proram Dimmer yang dibuat dengan input LDR atau Photo Dioda

//============================

int photocellPin = 0;     // the cell and 10K pulldown are connected to a0

int photocellReading;     // the analog reading from the sensor divider

int LEDpin = 11;          // connect Red LED to pin 11 (PWM pin)

int LEDbrightness;        // 

void setup(void) {

  // We'll send debugging information via the Serial monitor

  Serial.begin(9600);   

}

void loop(void) {

  photocellReading = analogRead(photocellPin);  

  Serial.print("Analog reading = ");

  Serial.println(photocellReading);     // the raw analog reading

  // LED gets brighter the darker it is at the sensor

  // that means we have to -invert- the reading from 0-1023 back to 1023-0

  photocellReading = 1023 - photocellReading;

  //now we have to map 0-1023 to 0-255 since thats the range analogWrite uses

  LEDbrightness = map(photocellReading, 0, 1023, 0, 255);

  analogWrite(LEDpin, LEDbrightness);

  Serial.println();

  Serial.print("led reading = ");

  Serial.println(LEDbrightness);

  delay(100);

}