1. Arduino Serial Port Monitor Php
  2. Arduino Serial Monitor Tutorial
  3. Arduino Using Serial Monitor
  4. Arduino Serial Port Sniffer
  5. Arduino Serial Monitor Port Busy

The Arduino IDE has a feature that can be a great help in debugging sketches or controlling Arduino from your computer's keyboard. The Serial Monitor is a separate pop-up window that acts as a separate terminal that communicates by receiving and sending Serial Data. See the icon on the far right of the image above. Serial Port Analyzer is a professional utility that allows monitoring RS232/422/485 ports activity. Serial Port Monitor also displays, logs, and analyzes all data flows among COM ports and can send data in various formats, thus working as a terminal.


About Arduino

Creating interactive devices as well as fairly compelling electronics projects with the help of the Arduino platform seems to be a real joy for both hardware tinkerers and those who just start out in the world of DIY electronics. The platform basically includes an easy-to-use hardware (a small open source circuit board known as a micro controller) and flexible IDE (Integrated Development Environment), a software part designed for writing computer codes and uploading them to the
physical board.

In contrast to many other existing programmable circuit boards that require additional hardware to upload a new code written on computer onto the board, Arduino allows you to do this via a simple USB cable. More than that, the platform’s IDE is based on a simplified version of C++ which lets you do various electronic tricks even if you aren’t an experienced programmer or a prototype maven.

All this makes the platform one of the most user-friendly and popular experimental tools well-loved by artists, designers, hackers and hobbyists of all kinds. Thanks to Arduino, anyone interested in interactive environments can create their own project with just a few lines of code and some circuit boards communicating with GPS units, LEDs, cameras, the Internet, and even your smartphone!

Arduino Serial Monitor

One of the best things about the platform is that Arduino uses RS232 serial communication to interact with computers. This means you are able to send commands to your Arduino board from a computer you’re using and receive messages sent by the Arduino over USB. For this to be accomplished, it’s necessary to open the window of Arduino Serial Monitor, which is actually a part of the platform’s software and can be found on the toolbar of the Arduino IDE. The utility lets you easily read serial Arduino and control the behavior of devices interfaced to the board.

Additionally to displaying data generated with the board, Serial Monitor can also be really helpful when developing and debugging an Arduino sketch. With the Serial.print() function it provides, you can have Arduino serial output sent to your computer and displayed on the PC’s monitor. Why is it convenient for developing Arduino sketches? Well, it happens that once the code is uploaded to the Arduino board, the result you get is different from what you expected. For example, an LED doesn’t do something you need it to do, say blinks more often than it should or anything. The reason may be a variable getting incremented on and off, so Arduino Serial Monitor seems to be the easiest way to see its changing values.

Serial Port Monitor: alternative solution

With the limited functionality it offers, Arduino Serial Port Monitor can support basic serial communication but anything else like data logging or monitoring COM ports in real time does not seem possible with the utility. That’s where Serial Port Monitor by Eltima (SPM) comes in.

Now anyone can open and close COM ports, change their parameters while in operation, or communicate data in different formats (such as string, binary, octal, decimal, or hexadecimal) thanks to the built-in terminal available in the PRO version of SPM. Sending binary data in blocks is also not a problem as long as you
use the software.

Serial Port Monitor is a great way to compare and analyze information sent from an Arduino board to your machine. The app is capable of logging received serial data into a separate file, making it available for later consideration.

By altering the flow control settings with SPM, you’ll have the option to change the Arduino platform's functionality. The idea is simple: once you’ve set the flow control to none, it’s possible to access the serial with no need to reset your board. As a result, when debugging an Arduino sketch you can just attach a connector and monitor data without the need to start the sketch over.

Here are some other core SPM’s capabilities:

Sniffing COM ports activity

The app allows you to start monitoring active serial ports as soon as they are detected by the software. The advantage here is that finding a bug in your code, you can fix it immediately.

Simultaneous monitoring of multiple ports

Users who want to track the activity of several COM ports at a time, can do so with SPM. Data collection is based on the first in, first out method.

Data filtering and visualization modes

The filtering option SPM offers is meant to simplify data analysis by providing you with the ability to see only relevant messages. Above that, the data can be shown in different views: table, line, dump, and terminal.

Packed with tons of outstanding functionality and still friendly and easy-to-use Eltima’s Serial Monitor for Arduino puts the ability to monitor and analyze serial data within reach of any user regardless of their programming skills. This makes the software the top solution for monitoring serial communications available today.

Serial Port Monitor

Requirements: Windows XP/2003/2008/Vista/7/8/10/Server 2012 , 9.16MB size
Version 7.0.342 (13th Jan, 2018) Release notes
Category: Communication Application
26 Jan at 17:09
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Active3 months ago

I bought an Arduino Uno recently. After getting the necessary cables, I decided to upload an example to the chip.

Instead of seeing that Blink, I received an error like processing.app.SerialException: Serial port 'COM1' not found. Did you select the right one from the Tools > Serial Port menu?

Yes, I tried that. But even Serial Port Monitor doesn't seem opening. Then again, I get some exception that isn't worth mentioning.

After I found out that my Serial COM ports don't work (via Portmon.exe), and figuring out that I may even don't have any (there is no COM port in Device Manager), I also tried to download a driver for COM port, but it has also failed.

Some say that it's because of my Acer Aspire 5742's motherboard. Some say that the reason is Windows 7.

Long story short, I'd really appreciate if someone can help me with my COM port problem and mend my broken dreams.

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7 Answers

Installing Drivers for Arduino in Windows 8 / 7.

( I tried it for Uno r3, but i believe it will work for all Arduino Boards )

Plugin your Arduino Board

Go to Control Panel --->System and Security --->System ---> On the left pane Device Manger

Expand Other Devices.

Under Other Devices you will notice a icon with a small yellow error graphic. (Unplug all your other devices attached to any Serial Port)

Right Click on that device --->Update Driver Software

Select Browse my computer for Driver Software

Click on Browse --->Browse for the folder of Arduino Environment which you have downloaded from Arduino website. If not downloaded then http://arduino.cc/en/Main/Software

After Browsing mark include subfolder.

Arduino Serial Port Monitor Php

Click next ---> Your driver will be installed.

Collapse Other Devices --->Expand Port ( its in device manager only under other devices )

You will see Arduino Written ---> Look for its COM PORT (close device manager)

Go to Arduino Environment --->Tools --->Serial Port ---> Select the COM PORT as mentioned in PORT in device manager. (If you are using any other Arduino Board instead of UNO then select the same in boards )

Upload your killer programmes and see them work . . .

I hope this helps. . .


Divye BhutaniDivye Bhutani

Did you install the drivers? See the Arduino installation instructions under #4. I don't know that machine but I doubt it doesn't have any COM ports.

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I've had my drivers installed and the Arduino connected through an unpowered usb hub.Moving it to an USB port of my computer made it work.


First: Sorry for my poor english (feel free to correct me).Abstract: Steps of How to resolve 'Serial port 'COM1' not found' in fedora 17.

Today install the packages for Arduino in Fedora 17.(yum install arduino) and i has the same problem: i decided to upload an example to the chip. and got the same error 'Serial port 'COM1' not found'.

In this case when i run Arduino programm, some banner appears which warns me that my user is not in 'dialout' and 'lock' group.¿Do you want add your user in this groups? I click in add button, but for some reason the program fail and not say nothing.

Step1: recognize the arduino deviceunplug your arduino and list /dev files:

plug your arduino and go and list /dev files

find the new file (device) that was not before pluggin for example:

ttyACM0 or ttyUSB1

Read this properties:

the first c mean that arduino is a character device.

user owner: root

group owner: dialout

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mayor number: 166

minor number: 0

Step2: set your user as group owner.

If you do:

And you are not in 'dialout' and/or 'lock' group.Add yourself in this groups run as root:

Arduino Serial Monitor Tutorial

restart the pc.and set /dev/ as your serial port before upload.

Arduino Using Serial Monitor

I hope be useful.Francisco.Bye.

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unplug not necessary,just uninstall your port,restart and install driver again.you will see arduino COM port under the LPT & PORT section.


This fix / solution worked for me:Device Manager --> Ports --> right click on Arduino Uno --> Update Driver Software --> Search automatically for updated driver software


I restarted my computer and then opened the IDE again and it worked while none of the above did.

Arduino Serial Port Sniffer

Maybe you have to do the things above as well, but make sure to restart the computer too.

Tilen ThalerTilen Thaler

Arduino Serial Monitor Port Busy

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