Skip to main content

# Printing Logs

The WebSerial library provides you a really nice UI on the web browser itself using WebSockets protocol, making it easy to debug and monitor your projects/devices. Under the hood, this library inherits `Print` class of the Arduino core, so it uses methods similar to the `Serial` library.

Important Tip

Don't send large amounts of data in a single shot with WebSerial. (ie. more than 1KB)

WebSerial uses WebSockets as its underlying transport mechanism which is of low throughput (due to hardware limitation). Although there are built-in mechanisms in WebSerial library to ease this burden, it's advised to optimize the your firmware for a crash-free experience.

## Methods​

Here are a example few methods which can be used to print logs/messages to WebSerial terminal:

### `print()`​

Prints data to the WebSerial port as human-readable ASCII text.

    WebSerial.print(data);

### `println()`​

Prints data to the WebSerial terminal followed by a carriage return and newline.

    WebSerial.println(data);

### `printf()`​

Prints formatted data to the WebSerial terminal.

    WebSerial.printf(format, args...);

### `write()`​

Writes binary data to the WebSerial terminal.

    WebSerial.write(data);
    WebSerial.write(buffer, size);