Serial Monitor in #Arduino – Baud Rate

The Arduino board itself can impart effortlessly utilizing essential conventions for serial monitoring.

Essentially, serial correspondence is the procedure of sending information components over a channel, frequently named a transport. For the most part, information components are bytes, however it all relies on upon the execution of the serial correspondence.Arduino_programming1

In serial correspondence, information is sent consecutively, one after the past one. This is the inverse of parallel correspondence, where information are sent over more than one channel, all in the meantime.

Baud Rate

Since the two substances that need to convey utilizing serial interchanges have to be alright about the response to the inquiry “what is a word?, we need to utilize the same  transmission on both sides. To be sure, on the off chance that I send 001010101010, is it an entire word or are there numerous words? We need to characterize, for case, that a word is four-digits in length. At that point, we can comprehend that the past illustration contains three words: 0010, 1010, and 1010. This includes a clock.

That clock definition is made by instating serial correspondence at a specific speed in baud, additionally called baud rate. 1 baud implies 1 image transmitted every second. An image can be more than one bit.

This is why we don’t have to create confusion between bps, bit per second, and baud!

 Arduino UNO from RoboMart lowest price Rs: 550/- Buy Now

Serial communication with Arduino

Each Arduino board has no less than one serial port. It can be utilized by utilizing computerized pins 0 and 1, or straightforwardly utilizing the USB association when you need to utilize serial correspondence with your PC.

You can check On the Arduino board, you can read RX and TX on both computerized pins 0 and 1 separately. TX means transmit and RX means get; without a doubt, the most essential serial correspondence obliges two wires.

There are numerous different sorts of serial correspondence transports we’ll learn somewhat later, Some Advanced Techniques, in the Using I2C and SPI for LCD, LED


Arduino IDE gives a pleasant serial screen that shows all images sent by the board to the PC through the USB interface. It gives a great deal of baud rates from 300 baud to 115,200 baud. We are going to check how to utilize it in the accompanying segments.

Serial monitoring

Serial checking is the method for making extremely essential and simple correspondence with our board! It implies we can program it to address us, by means of the serial screen.

In the event that you need to investigate something and the board’s conduct contrasts from what you are anticipating from it, and you need to “confirm whether the issue originates from the firmware or not, you can make a few schedules that will compose messages to you. These messages are called follows. Follows can be absolutely fundamental for investigating source code.

Making Arduino to communicate with us

Imagine that you have followed carefully the Blink 300 ms project, everything is wired correctly, you double-checked that, and the code seems okay too, but it doesn’t work.

Our LED isn’t blinking at all. How to be sure that the loop() structure of your code is correctly running? We’ll modify the code a bit in order to trace its steps.

Click on the Serial Monitor button in the Arduino IDE:


Pick the same baud rate you wrote in the code, which is in the menu at the base right of the Serial Monitoring window, and watch what is occurring.


You will see a few messages showing up in the Serial Monitor window, synchronized with the flickering LED states.

Presently, we can make sure that our code is fine in light of the fact that every message is sent and in light of the fact that all lines are prepared successively; it implies the digitalWrite() capacities are moreover called accurately (nothing is blocked). This data can be a piece of information, for example, to check our circuit afresh to attempt to discover the mistake there rather than in the code.

Obviously this is a paltry illustration, yet I’m certain you comprehend the objective and the force of following your code!

Serial functions


Everything starts with the Serial.begin() capacity. This capacity in the setup() routine is executed just once, that is, the point at which the Arduino is beginning.

In the code, I set up the board to start a serial correspondence at 9,600 baud rate.

Serial.print() and Serial.println()

Serial.print() and Serial.println() carry on indistinguishably: they compose something to the serial yield, yet the ln form additionally includes a carriage return and a newline.

The language structure of this capacity is Serial.print(val) or Serial.print(val,format). You can pass maybe a couple contentions. Fundamentally, if Serial.print(5) prints the number 5 as an ASCII-encoded decimal image, Serial.print(5,OCT) prints the number 5 as an ASCII-encoded octal one.

Then you will see the input text field and send button on serial monitor.

This implies we can likewise utilize that apparatus to send information to the board from our PC.

The firmware’s board, in any case, needs to actualize some different capacities keeping in mind the end goal to have the capacity to comprehend what we’d like to send. Handling structure, and the Max 6 system to send messages effortlessly to the Arduino Board.

We are coming with more Arduino Tutorials. Visit our blog regularly and enjoy.

Thank you..