# read in arduboy_rust::serial_print - Rust
Reads incoming serial data. Use only inside of available():

# Function arduboy_rust::serial_print::read

source ·

    pub fn read() -> i16

Expand description

Reads incoming serial data. Use only inside of available():

    if (serial::available() > 0) {
        // read the incoming byte:
        let incoming_byte: i16 = Serial::read();

        // say what you got:
        serial::print("I received: ");
        serial::println(incoming_byte);
    }

#### Returns

The first byte of incoming serial data available (or -1 if no data is available). Data type: int.