Hello
While working on project 4 in the project book, I can't get my RGB LED to turn on. I can see that I get sensor values from the photoresistors in the serial monitor. I've posted my code down below.
const int greenLEDPin = 9;
const int redLEDPin = 11;
const int blueLEDPin = 10;
const int redSensorPin = A0;
const int greenSensorPin = A1;
const int blueSensorPin = A2;
int redValue = 0;
int greenValue = 0;
int blueValue = 0;
int redSensorValue = 0;
int greenSensorValue = 0;
int blueSensorValue = 0;
void setup() {
Serial.begin(9600);
pinMode(greenLEDPin,OUTPUT);
pinMode(redLEDPin,OUTPUT);
pinMode(blueLEDPin,OUTPUT);
}
void loop() {
redSensorValue = analogRead(redSensorPin);
delay(5);
greenSensorValue = analogRead(greenSensorPin);
delay(5);
blueSensorValue = analogRead(blueSensorPin);
delay(5);
Serial.print("Raw Sensor Values \t Red: ");
Serial.print(redSensorValue);
Serial.print("\t Green: ");
Serial.print(greenSensorValue);
Serial.print("\t Blue: ");
Serial.print(blueSensorValue);
redValue = redSensorValue/4;
greenValue = greenSensorValue/4;
blueValue = blueSensorValue/4;
Serial.print("Mapped Sensor Values \t Red: ");
Serial.print(redValue);
Serial.print("\t Green: ");
Serial.print(greenValue);
Serial.print("\t Blue: ");
Serial.println(blueValue);
analogWrite(redLEDPin, redValue);
analogWrite(greenLEDPin, greenValue);
analogWrite(blueLEDPin, blueValue);
}
I tried testing the LED just using the 5V power supply, a resistor, as shown in the book and the cathode connected to ground, but still nothing. Any ideas of what I may be doing wrong? Assuming I have done everything right, and the RGB LED is broken, how can I get a replacement? Is it worth trying to contact customer support, or should I just buy a new one?
Thank you for your time