How to Clear Serial Monitor in Arduino? Easy Guide

The serial monitor connects your PC to your Arduino. Typing commands can control the Arduino on a computer’s keyboard, which is beneficial for debugging and troubleshooting.

Serial Monitor and Arduino communicate via USB, which use to send the code to Arduino. To use Serial Monitor, the Arduino and PC must be connected using this cable.

You can clear a serial monitor in Arduino because of personal preferences or get rid of old data. You will learn How to Clear Serial Monitor in Arduino by following this guide.

About Arduino

In electronics, Arduino is an open-source platform built on hardware and software that is simple to use. Using Arduino boards, you can read inputs – such as light coming from a sensor or a finger pressing a button or a Twitter message – and turn them into outputs – such as operating a motor, turning on an LED, or publishing something on the internet.

You can instruct your board to perform a task bypassing a sequence of commands to the microcontroller embedded in it. Arduino is a language of programming (based on Wiring) and Arduino Software (IDE), both of which based on Processing, that allows you to accomplish this.

What Is It About Arduino That Makes It So Popular?

  • Artisans, designers, hackers, amateurs, and anybody interested in building interactive objects or surroundings can use Arduino boards and software. 
  • When you use Arduino, you may connect it to various peripherals and devices. It includes your smartphone, television, GPS, and other digital cameras and cameras. 
  • Many people have donated code and instructions for a wide range of Arduino-based projects because of the convenience with which they can learn both the software and hardware of Arduino and the wide range of projects built using these tools.

Components of Arduino

Arduinos composed of various components and interfaces that are all housed on a single board. Over time, the layout has evolved to include additional features. If you’re looking at a simple board, you’ll find the following items:


There are a variety of pins on the Arduino that you can utilize in conjunction with various other components. If you purchase an add-on board made to fit into these pins, sometimes referred to as a “shield,” it should work with most Arduino-compatible devices.

Power Connector

A power connector that delivers both the device itself and a low voltage can power connected components like LEDs and other sensors, providing their power consumption is sufficiently low.


A microcontroller is a primary chip that enables you to program the Arduino so that it can execute commands and make decisions in response to various inputs.

USB Port

A standard USB port uses to implement a serial connector on most modern boards. With this connector, you can interface with the board and load new applications onto it from your computer.

Oscillator and Voltage Regulator

Other minor components, like an oscillator and a voltage regulator, provide crucial capabilities to the board, but you usually don’t interface with these directly; you only know that they are there.

How can I Use the New Serial Monitor in the Arduino IDE?

When developing projects with Arduino, the Serial Monitor is a must-have tool. In addition to being a debugging tool, you may also use it to try out concepts and interface directly with the Arduino board.

The Serial Monitor tool incorporates within the Arduino IDE 2.0 editor, so there is no need to open another window when working with the Serial Monitor. It implies that you can have numerous windows open, each with its Serial Monitor, without having to close any of them.

Efficient Ways to Clear Serial Monitor in Arduino

How to Use Serial Monitor

This tutorial will cover two different approaches to clearing the serial monitor in the Arduino IDE.

The first one is to close and reopen the serial terminal software, while the other utilizes another serial terminal application. Follow the methods mentioned below to Clear Serial Monitor in Arduino.

By Closing and Reopening the Serial Monitor 

In the Arduino IDE, there is no direct way to clear the serial monitor; however, you can remove it by quitting and reopening the Arduino IDE window.

This procedure will also force the Arduino to restart. In addition, you can use delay in the vacant loop to slow down the printing of values on the serial monitor screen.

You will be able to see the deals in this manner. Additionally, you can pause the serial monitor from within the Arduino IDE to verify the serial readings.

By Using Another Serial Terminal Program

Instead of utilizing the Arduino IDE, you can use another application for serial monitoring, such as the Brey terminal, to accomplish the same result. It contains a plethora of eye-catching features and a straightforward receive and sends window.

However, it is only compatible with Windows computers. It consists of a single, small.exe file that you can run without installing. 

What Is an Efficient Way to Use an Arduino?

Most Arduino enthusiasts, especially those just getting started, prefer to work with the official Arduino IDE. To use the Arduino IDE, you’ll need a Java-based computer with a Java Virtual Machine (JVM).

Several tools built into the IDE make it easier for you to create code, such as syntax highlighting and other features that make coding more efficient.

Arduino’s programming language is Wiring, which derives from Processing. The official documentation for Arduino programming may find here.

Advantages of Using Arduino

It is necessary to know the advantages of Arduino; so that you can run programs on Arduino properly.

  • Arduino’s best attribute is its pre-built design. The Arduino development board has everything you need to get started, including the 5V regulator, a burner, an oscillator, a microcontroller, a serial communication interface, an LED, and headers for connecting everything. You don’t have to think about the interface between the programmer and the system for programming or any other interface. To use it, plug it into the USB port on your computer. It will only take a few lines of code for your revolutionary concept to transform the world.
  • While coding Arduino, you’ll come across several routines that make your life easier. Another benefit of Arduino is its ability to convert between different units automatically. There is no need to bother about unit conversions while troubleshooting. Concentrate all of your energy on the most critical aspects of your work. 
  • The Arduino is a popular topic of conversation in numerous online communities. Engineers, amateurs, and professionals use Arduino to create their projects. Everything is within your reach. Arduino’s features are all explained in detail on the Arduino website itself.

Disadvantages of Using Arduino

  • Yes, Arduino’s structure is also a disadvantage. When developing a project, keeping its size as modest as feasible is critical. However, due to the large structures of Arduino, we must use large-sized printed circuit boards. If you’re working with a small microcontroller, such as the ATmega8, you may quickly minimize the size of your PCB.
  • If you began your career with Arduino, it would be extremely tough for you to create complicated intelligent circuitries in the future. The easy-to-use hardware/software of Arduino enables a person to quickly grasp the fundamentals of numerous concepts such as serial communication, ADC, and I2C.
  • The most critical aspect, which you cannot ignore, is cost. It is the issue that every amateur, engineer, or professional must confront. Now, we must assess whether the Arduino is economically viable.

Frequently Asked Question

Is It Hard to Learn Arduino?

When it comes to using an Arduino, you can anticipate performing a lot of programming, electronics, and cool stuff with code and components. Learning to use Arduino requires some reorientation, just as learning any new skill or technology. It is, however, not difficult to come to terms with the end.

Why Arduino Is Used in IoT?

A program that assists creators in creating connected things in a quick, simple, and secure manner is the Arduino IoT Cloud. You can connect several devices and allow them to transmit real-time data between one another. You may also keep track of them using a straightforward user interface from any location.

What Is the Main Function of Arduino?

This electronic development platform, known as Arduino, comprises two parts: a physical programmable circuit board (also known as a microcontroller) and software known as the IDE (Integrated Development Environment). It runs on your PC and is used to write and upload computer code to the actual physical board.

Where Is the Serial Monitor Arduino?

The Arduino IDE includes a serial monitor that you can use with any software version. To access it, click on the Serial Monitor icon on your desktop. The icon is present to the right of the other symbols in Arduino 0023 and the following versions of the software. In Arduino 1.0 and later versions, the icon can view on the screen’s far-right.


Numerous projects and applications use Arduino because of its straightforward and approachable user interface. Among the tools available in the Arduino IDE is the Serial Monitor, which receives information from Arduino and displays it on the computer’s monitor. In most cases, this utilizes for debugging and tracking purposes. 

Instead, there is no direct mechanism for clearing the serial monitor in Arduino; however, you can clear it by Closing and opening it again.

This technique will also restart the Arduino. To clear the serial monitor in Arduino, you can alternatively use Another Serial Terminal Program.