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[on:]

Hello I just tested my new LCD display and it works fine.

The setup I'm using is this:
http://arduino.cc/en/Tutorial/LiquidCrystal

When I run the following code everything works as intended:

Code:

void setup()
{
  lcd.begin(16,2);
  lcd.print("Hello World");
}

But if I add Serial.begin(9600); liked this, the display shows weird symbols and doesn't update anymore, why is that?

Code:

void setup()
{
  Serial.begin(9600);
  lcd.begin(16,2);
  lcd.print("Hello World");
}

[Reply #1 on:]

Where is the rest of your code?

[Reply #2 on:]

Where is the rest of your code?

That is the code, just made a simple example to point out my problem.

[Reply #3 on:]

That doesn't compile.

sketch_jul19a.cpp: In function 'void setup()':
sketch_jul19a:3: error: 'lcd' was not declared in this scope

Where is your lcd declaration?

[Reply #4 on:]

Code:

#include <LiquidCrystal.h>

LiquidCrystal lcd(6,5,4,3,2,1);

void setup()
{       
  //Serial.begin(9600);
  lcd.begin(16,2);
  lcd.print("HELLO WORLD!");
}

void loop()
{
 
}

That is the whole code it works fine as long as Serial.begin(9600) is out commented. But if I uncomment Serial.Begin it shows the odd symbols on the display.

[Reply #5 on:]

Code:

lcd(6,5,4,3,2,1);

1?

Wouldn't it have wasted a lot less time if you'd posted that at the start?

[Reply #6 on:]

I am not sure what you mean about 1?

What is the sulotion?

Sorry if I'm asking a stupid question.

[Reply #7 on:]

Which pins does the serial interface use?

[Reply #8 on:]

Pins 0 and 1 belong to the hardware serial port. When you do Serial.begin(), it starts using the pins.

[Reply #9 on:]

I plugged it into
6,5,4,3,2,1

[Reply #10 on:]

Yes, and that's your problem, so move the pin that is connected to pin 1 on the Arduino.

[Reply #11 on:]

Ok, thanks a lot