Problem with serial

Forum 2005-2010 (read only) Hardware Troubleshooting
1

I'm having some serious probs here with my serial connections. i have this sketch witch should print hello world when the button is pressed, but it keeps giving this error:

 In function 'void setup()':
error: 'serial' was not declared in this scope In function 'void loop()':

its kinda irritating, so please help me.

int sw = 3;
int led = 13;

void setup(){                   
serial.begin(9600);
pinMode(sw, INPUT);
pinMode(led,OUTPUT);
}

void loop()
{
  if (sw == LOW) {
     serial.print ("Hello World");
     digitalWrite(led,LOW);
  }
  if (sw ==HIGH) {
    digitalWrite(led,HIGH);
  }
}
2

You need to capitalize Serial; the compiler is case-sensitive.

3

great i got it working now!! but the next problem arises.... it sends now data, but every time on the same line like this:

123456789101112131415161718192021222324252627282930313233343536373839

int ledPin = 13;
int ledcount;
int incomingByte;
void setup()
{
  pinMode(ledPin, OUTPUT);
  Serial.begin(9600);
}

void loop()
{
  digitalWrite(ledPin, HIGH);
  delay(1000);                  
  digitalWrite(ledPin, LOW);
  delay(1000);
  ledcount++;
  Serial.print(ledcount); //sends how many times the led was switched on.
 }
4

123456789101112131415161718192021222324252627282930313233343536373839

And if you look carefully at this, it reads:

1 2 3 4 5 6 7 8 9 10 11 12 13 14...39

Try "Serial.println(ledcount);"
or
"Serial.print (ledcount); Serial.print(" " ); "

5

great thanks AWOL!