Lab 4 - RGB LED

CLASSWORK:
RGB LED Control with Debounced Button
const int BLED=9; //Blue LED on Pin 9
const int GLED=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)
}
/*
* Debouncing Function Pass it the previous button state,
* and get back the current debounced button state.
*/
boolean debounce(boolean last)
{
 boolean current = digitalRead(BUTTON); //Read the button state
 if (last != current) //if it's different...
 {
 delay(5); //wait 5ms
 current = digitalRead(BUTTON); //read it again
 }
 return current; //return the current value
}
/*
* LED Mode Selection Pass a number for the LED state and set it accordingly.
*/
void setMode(int mode)
{
 //RED
 if (mode == 1)
 {
 digitalWrite(RLED, HIGH);
 digitalWrite(GLED, LOW);
 digitalWrite(BLED, LOW);
 }
 //GREEN
 else if (mode == 2)
 {
 digitalWrite(RLED, LOW);
 digitalWrite(GLED, HIGH);
 digitalWrite(BLED, LOW);
 }
 //BLUE
 else if (mode == 3)
 {
 digitalWrite(RLED, LOW);
 digitalWrite(GLED, LOW);
 digitalWrite(BLED, HIGH);
 }
 //PURPLE (RED+BLUE)
 if (mode == 4)
 {
 digitalWrite(RLED, HIGH);
 digitalWrite(GLED, LOW);
 digitalWrite(BLED, HIGH);
 }
 //WHITE (RED+GREEN+BLUE)
 if (mode == 5)
 {
  digitalWrite(RLED, HIGH);
  digitalWrite(GLED, HIGH);
  digitalWrite(BLED, HIGH);
 }
 //ORANGE
 if (mode == 6)
 {
  analogWrite(RLED, 127);
  analogWrite(GLED, 127);
  analogWrite(BLED, 0);
 }
 //TEAL
 else if (mode == 7)
 {
  analogWrite(RLED, 0);
  analogWrite(GLED, 127);
  analogWrite(BLED, 127);
 }
 //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

}

HOMEWORK:
RGB LED Control with Switch Statements
const int BLED=9; //Blue LED on Pin 9
const int GLED=10; //Green LED on Pin 10
const int RLED=11; //Red LED on Pin 11
const int BUTTON1=2; //The Button is connected to pin 2
const int BUTTON2=3;
const int BUTTON3=4;
boolean lastButton = LOW; //Last Button State
boolean currentButton = LOW; //Current Button State
int mode = 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)
}
/*
* Debouncing Function Pass it the previous button state,
* and get back the current debounced button state.
*/
boolean debounce(boolean last)
{
 boolean current = digitalRead(BUTTON1); //Read the button state
 if (last != current) //if it's different...
 {
 delay(5); //wait 5ms
 current = digitalRead(BUTTON1); //read it again
 }
 return current; //return the current value
}
/*
* LED Mode Selection Pass a number for the LED state and set it accordingly.
*/
void setMode(int mode)
{
switch (mode)
{
case 1:
  digitalWrite(RLED, HIGH);
  digitalWrite(GLED, LOW);
  digitalWrite(BLED, LOW);
  break;
case 2: 
  digitalWrite(RLED, LOW);
  digitalWrite(GLED, HIGH);
  digitalWrite(BLED, LOW);
  break;
case 3: 
  digitalWrite(RLED, LOW);
  digitalWrite(GLED, LOW);
  digitalWrite(BLED, HIGH);
  break;
case 4: 
  digitalWrite(RLED, HIGH);
  digitalWrite(GLED, LOW);
  digitalWrite(BLED, HIGH);
break;
case 5: 
  digitalWrite(RLED, HIGH);
  digitalWrite(GLED, HIGH);
  digitalWrite(BLED, HIGH);
  break;
case 6: 
  analogWrite(RLED, 127);
  analogWrite(GLED, 127);
  analogWrite(BLED, 0);
  break;
case 7: 
  analogWrite(RLED, 0);
  analogWrite(GLED, 127);
  analogWrite(BLED, 127);
  break;
default:
  digitalWrite(RLED, LOW);
  digitalWrite(GLED, LOW);
  digitalWrite(BLED, LOW);
break;
}
}
void loop()
{
 currentButton = debounce(lastButton); //read debounced state
 if (lastButton == LOW && currentButton == HIGH) //if it was pressed...
 {
 mode++; //increment the LED value
 }
 lastButton = currentButton; //reset button value
 //if you've cycled through the different options,
 //reset the counter to 0
 if (mode == 8) mode = 0;
 setMode(mode); //change the LED state
}