아누이노 CDS조도센서 / 가변저항 + 전등

회로-  

 

<아두이노 CDS 조도센서의 값을 시리얼통신으로 전송하기>

#define LED_RED 5

#define LED_GREEN 6

#define LED_BLUE 11

#define BRIGHT_PIN A1

 

void setup() {

  Serial.begin(9600);

  pinMode(LED_RED, OUTPUT);

  pinMode(LED_GREEN,OUTPUT);

  pinMode(LED_BLUE, OUTPUT);

}

 

void loop() {

  int brightValue = analogRead(BRIGHT_PIN);

  Serial.println(brightValue);

}

<어두워지면 전등이 켜지게 하기>

#define LED_RED 5

#define LED_GREEN 6

#define LED_BLUE 11

#define BRIGHT_PIN A1

 

void setup() {

  Serial.begin(9600);

  pinMode(LED_RED, OUTPUT);

  pinMode(LED_GREEN,OUTPUT);

  pinMode(LED_BLUE, OUTPUT);

}

 

void loop() {

  int brightValue = analogRead(BRIGHT_PIN);

  Serial.println(brightValue);

  if (brightValue > 500) ledOn();

  else ledOff();

}

 

void ledOn()

{

  digitalWrite(LED_RED, HIGH);

  digitalWrite(LED_GREEN, HIGH);

  digitalWrite(LED_BLUE, HIGH);

}

 

void ledOff()

{

  digitalWrite(LED_RED, LOW);

  digitalWrite(LED_GREEN, LOW);

  digitalWrite(LED_BLUE, LOW);

}

 

<어두워지면 3초 후 켜지는 전등 만들기>

#define LED_RED 5

#define LED_GREEN 6

#define LED_BLUE 11

#define BRIGHT_PIN A1

 

unsigned long currTime = 0;

unsigned long prevTime = 0;

int sec = 0;

 

int state = 0;

 

void setup() {

  Serial.begin(9600);

  pinMode(LED_RED, OUTPUT);

  pinMode(LED_GREEN, OUTPUT);

  pinMode(LED_BLUE, OUTPUT);

}

 

void loop(){

  int brightValue = analogRead(BRIGHT_PIN);

  Serial.println(brightValue);

 

  currTime = millis();

  if(currTime - prevTime >= 1000)

  {

    prevTime = currTime;

    sec++;

  }

 

  if(brightValue>500)

  {

    if(sec>=3)

    {

      sec=3;

      ledOn();

    }

  }

  else

  {

    sec = 0;

    ledOff();

  }

}

void ledOn()

{

  digitalWrite(LED_RED, HIGH);

  digitalWrite(LED_GREEN, HIGH);

  digitalWrite(LED_BLUE, HIGH);

}

void ledOff()

{

  digitalWrite(LED_RED, LOW);

  digitalWrite(LED_GREEN, LOW);

  digitalWrite(LED_BLUE, LOW);

}

 

 

 

회로 - 

<가변 저항 값 읽어 값 전송하기>

 

#define LED_RED 5

#define LED_GREEN 6

#define LED_BLUE 11

#define VR_PIN A0

 

void setup() {

  Serial.begin(9600);

}

 

void loop() {

  int vrValue = analogRead(VR_PIN);

  Serial.println(vrValue);

  delay(100);

}

 

 

<가변 저항 값으로  LED의 밝기 조절하기>

#define LED_RED 5

#define LED_GREEN 6

#define LED_BLUE 11

#define VR_PIN A0

 

void setup() {

  Serial.begin(9600);

}

 

void loop() {

  int vrValue = analogRead(VR_PIN);

  Serial.println(vrValue);

 

  ledBrightSet(vrValue / 4);

}

 

void ledBrightSet(int value)

{

  if (value >=20)

  {

    analogWrite(LED_RED, value);

    analogWrite(LED_GREEN, value);

    analogWrite(LED_BLUE, value);

  }

  else

  {

    analogWrite(LED_RED, 0);

    analogWrite(LED_GREEN, 0);

    analogWrite(LED_BLUE, 0);

  }

}

 

<가변 저항 값으로 LED의 밝기 단계 조절하기>

#define LED_RED 5

#define LED_GREEN 6

#define LED_BLUE 11

#define VR_PIN A0

 

void setup() {

  Serial.begin(9600);

}

 

void loop() {

  int vrValue = analogRead(VR_PIN);

  int percent = map(vrValue,0,1023,0,100);

  Serial.println(percent);

 

  ledBrightSet(percent);

}

 

void ledBrightSet(int percentValue)

{

  if (percentValue >=0 && percentValue <=10)

  {

    analogWrite(LED_RED, 0);

    analogWrite(LED_GREEN, 0);

    analogWrite(LED_BLUE,0);

  }

  else if(percentValue >=11 && percentValue <=40)

  {

    analogWrite(LED_RED, 80);

    analogWrite(LED_GREEN, 80);

    analogWrite(LED_BLUE, 80);

  }

  else if (percentValue >= 41 && percentValue <= 71)

  {

    analogWrite(LED_RED, 160);

    analogWrite(LED_GREEN, 160);

    analogWrite(LED_BLUE, 160);

  }

  else if (percentValue >= 71 && percentValue <= 100)

  {

    analogWrite(LED_RED, 255);

    analogWrite(LED_GREEN, 255);

    analogWrite(LED_BLUE, 255);

  }

}