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[Reply #15 on:]

Thanks.

I can get the LED to turn red no problem - or any other colour for that matter. It becomes a problem when RFID comes into the equation. I'll have a look at the functions you said.

Thank you.

[Reply #16 on:]

I think I should be banned from Arduino and anything to do with code.

I can't even get the Arduino to select red or blue at random through the RGB LED.

[Reply #17 on:]

I think I should be banned from Arduino and anything to do with code.

If you won't post your code, I agree.

If you do post it, then, at least you're trying.

[Reply #18 on:]

Haa.

I'm trying to do what you said and just take it a one step at a time rather than jumping into the deep end of RFID'ing all at once.

Code:

int redLed = 11;
int greenLed = 10;
int blueLed = 9;

long randNumb;;

void setup()
{
 pinMode(redLed, OUTPUT);
 pinMode(greenLed, OUTPUT);
 pinMode(blueLed, OUTPUT);
 randomSeed(analogRead(0));
}

void red()
{
 analogWrite(redLed, 255);
 analogWrite(greenLed, 0);
 analogWrite(blueLed, 0);  
}  

void green()
{
 analogWrite(redLed, 0);
 analogWrite(greenLed, 255);
 analogWrite(blueLed, 0);  
}  

void blue()
{
 analogWrite(redLed, 0);
 analogWrite(greenLed, 0);
 analogWrite(blueLed, 255);  
}  

void loop()
{
 randNumb = random(1, 4);
 
 if(randNumb == 1){
  red();
 }  
 if(randNumb == 2){
  green();
 }
 if(randNumb == 3){
  blue();
 }
}

Thanks.

[Reply #19 on:]

How long with each color be on? Not very long, as I read your code. Try, for the moment, adding a delay(250); to loop(), at the end.