Serial.read()

Read the serial port data, and read() inherits the utility classes from Stream.

• Syntax：
  

Serial.read()

microduino core only:

Serial.read()

Serial1.read()

• Parameters：
  

No

• Returned valuse：
  

The first byte can be read on the serial ports is of （if there is no data can be read, return -1）- int type.

• Example：
  

int incomingByte = 0;   // used to store the data read from serial ports

void setup() {
        Serial.begin(9600);     // open the serial port, and set the speed as 9600 bps
}

void loop() {

        // send data only when receiving data
        if (Serial.available() > 0) {
                // read the incoming bytes
                incomingByte = Serial.read();

                // indicate the data you receive
                Serial.print("I received: ");
                Serial.println(incomingByte, DEC);
        }
}

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