2 hardware UARTs on arduino MEGA 2560

Other Hardware Sensors
1

Hello,

I need to use two (or more) hardware UARTs on Arduino MEGA 2560. What commands should I use to do this?

2

Just like you use this to print to the Serial Monitor...

  Serial.println( "Hello" );

...you can do any or all of these on the Mega:

  Serial1.println( "Hello" );
  Serial2.println( "Hello" );
  Serial3.println( "Hello" );

Of course, you have to start them just like Serial:

  Serial1.begin( 9600 );
  Serial2.begin( 115200 );
  Serial3.println( 4800 );

Make sure you're using the corrext TX1/RX1, TX2/RX2 or TX3/RX3 pins to talk to the other device.

Cheers,
/dev

3

Exact same commands as you normally would. Only difference is adding a number behind Serial if it isn't the default port.

Also remember that only the first UART is capable of sending data to the computer.