Arduino Reference - SoftwareSerialBegin

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## SoftwareSerial: begin(speed)

#### Description

Sets the speed (baud rate) for the serial communication. Supported baud rates are 300, 1200, 2400, 4800, 9600, 14400, 19200, 28800, 31250, 38400, 57600, and 115200.

#### Parameters

speed: the baud rate (long)

#### Returns

none

#### Example

// include the SoftwareSerial library so you can use its functions:
#include <SoftwareSerial.h>
#define rxPin 2
#define txPin 3
// set up a new serial port
SoftwareSerial mySerial = SoftwareSerial(rxPin, txPin);
void setup() {
// define pin modes for tx, rx:
pinMode(rxPin, INPUT);
pinMode(txPin, OUTPUT);
// set the data rate for the SoftwareSerial port
mySerial.begin(9600);
}
void loop() {
// ...
}
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#### See also

- SoftwareSerial()
- read()
- print()
- println()

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