Serial

read()

Serial.read, read, Serial1.read, read

Reads incoming serial data.

// SYNTAX
Serial.read();
Serial1.read();

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

// EXAMPLE USAGE
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);
  }
}