Hi,
I'm new to Arduino, and I'm trying to get my RGB LED to work.
I'm using the pdf made by Arduino to learn, and I copied this code from it.
I thought the error "colorRGB is not declared in this scope" was probably due to I needing to install a library, but I haven't found one. Any thoughts?
int redPin = 9; // R – digital 9
int greenPin = 10; // G – digital 10
int bluePin = 11; // B – digital 11
int potRedPin = 0; // potentiometer 1 – analog 0
int potGreenPin = 1; // potentiometer 2 – analog 1
int potBluePin = 2; // potentiometer 3 – analog 2
void setup(){
pinMode(redPin,OUTPUT);
pinMode(greenPin,OUTPUT);
pinMode(bluePin,OUTPUT);
Serial.begin(9600); // Initialize the serial port
}
void loop(){
int potRed = analogRead(potRedPin);
int potGreen = analogRead(potGreenPin); // read value from potentiometer of green LED
int potBlue = analogRead(potBluePin); // read value from potentiometer of blue LED
int val1 = map(potRed,0,1023,0,255);
int val2 = map(potGreen,0,1023,0,255);
int val3 = map(potBlue,0,1023,0,255);
// print value of red, green and blues LEDs from serial port
Serial.print("Red:");
Serial.print(val1);
Serial.print("Green:");
Serial.print(val2);
Serial.print("Blue:");
Serial.println(val3);
colorRGB(val1,val2,val3);
}
}
//define the colorRGB function
void colorRGB(int red, int green, int blue){
analogWrite(redPin,constrain(red,0,255));
analogWrite(greenPin,constrain(green,0,255));
analogWrite(bluePin,constrain(blue,0,255));
}
