학습자료실

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전자컴퓨터학부(전자통신전공)-학습자료실(학습자료실) 상세보기 - 제목, 내용, 파일, 작성자 정보 제공
rgb_nightlight.ino
작성자 : 심완보
const int GLED=9; //Blue LED on Pin 9
const int BLED=10; //Green LED on Pin 10
const int RLED=11; //Red LED on Pin 11
const int BUTTON=2; //The Button is connected to pin 2

boolean lastButton = LOW; //Last Button State
boolean currentButton = LOW; //Current Button State
int ledMode = 0; //Cycle between LED states

void setup()
{
pinMode (BLED, OUTPUT); //Set Blue LED as Output
pinMode (GLED, OUTPUT); //Set Green LED as Output
pinMode (RLED, OUTPUT); //Set Red LED as Output
pinMode (BUTTON, INPUT); //Set button as input (not required)
}

boolean debounce(boolean last)
{
boolean current = digitalRead(BUTTON);
if (last != current) //if it's different...
{
delay(5); //wait 5ms
current = digitalRead(BUTTON); //read it again
}
return current; //return the current value
}

void setMode(int mode)
{
if (mode == 1)
{
digitalWrite(RLED, HIGH);
digitalWrite(GLED, LOW);
digitalWrite(BLED, LOW);
}
else if (mode == 2)
{
digitalWrite(RLED, LOW);
digitalWrite(GLED, HIGH);
digitalWrite(BLED, LOW);
}
else if (mode == 3)
{
digitalWrite(RLED, LOW);
digitalWrite(GLED, LOW);
digitalWrite(BLED, HIGH);
}
else if (mode == 4)
{
digitalWrite(RLED, HIGH);
digitalWrite(GLED, LOW);
digitalWrite(BLED, HIGH);
}
//TEAL (BLUE+GREEN)
else if (mode == 5)
{
digitalWrite(RLED, LOW);
digitalWrite(GLED, HIGH);
digitalWrite(BLED, HIGH);
}
//ORANGE (GREEN+RED)
else if (mode == 6)
{
digitalWrite(RLED, HIGH);
digitalWrite(GLED, HIGH);
digitalWrite(BLED, LOW);
}
//WHITE (GREEN+RED+BLUE)
else if (mode == 7)
{
digitalWrite(RLED, HIGH);
digitalWrite(GLED, HIGH);
digitalWrite(BLED, HIGH);
}
//OFF (mode = 0)
else
{
digitalWrite(RLED, LOW);
digitalWrite(GLED, LOW);
digitalWrite(BLED, LOW);
}
}

void loop()
{
currentButton = debounce(lastButton); //read debounced state
if (lastButton == LOW && currentButton == HIGH) //if it was pressed...
{
ledMode++; //increment the LED value
}
lastButton = currentButton; //reset button value
//if you’ve cycled through the different options, reset the counter to 0
if (ledMode == 8) ledMode = 0;
setMode(ledMode); //change the LED state
}
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