read()

Description

Reads incoming serial data. read() inherits from the Stream utility class.

 

Syntax

Serial.read()

 

Parameters

None

 

Returns

the first byte of incoming serial data available (or -1 if no data is available) – int

 

Example

int incomingByte = 0;	// for incoming serial data

void setup() {
	Serial.begin(9600);	// opens serial port, sets data rate to 9600 bps
}

void loop() {

	// send data only when you receive data:
	if (Serial.available() > 0) {
		// read the incoming byte:
		incomingByte = Serial.read();

		// say what you got:
		Serial.print("I received: ");
		Serial.println(incomingByte, DEC);
	}
}

 

See also

 

Reference Home