Technical Specifications of an Arduino  List ▷ 2021

Currently the Arduino board has become very popular among many developers from different parts of the world, and this is because, anyone can use it to easily develop open source hardware and software.

His design is composed to promote the use of electronic engineering in multidisciplinary projects, and for the world of device and software manufacturers, it has become a very useful tool, relative to free hardware.

On this occasion, we will show you a variety of characteristics and technical specifications that you should take into account before starting to work with Arduino projects.

Know the most important technical specifications that you should know about the components of an Arduino

Keyestudio KS-177 Colorduino Arduino 4 x 4 x 4 RGB LED Cube Kit

With the purpose of simplify design work, Arduino It has some very important characteristics that allow it to do work of great determination for anyone who is available.

Keep in mind the most necessary:


The central processing unit It is the fundamental part of an Arduino board, and as the name says, This small circuit is used in a device or a technology project to perform a specific task.

The microcontroller It has communication ports, input and output, this gives it the power to receive an order that is recorded in its functional blocks from the computer, and then carry out a function. In general, the most used microcontrollers are the Atmel AVR, as well as the Atmega168, Atmega328, Atmega1280, and Atmega1280. On the other hand, the orders for this circuit are transmitted through the programming language for Arduino implemented in your Arduino IDE.


The voltage in this field it is known to be the power supply of a Arduino Y usually only requires a voltage of 5 volts to function. There are several methods to feed it properly, so that it does not cause any errors or failures later.

Power adapter

The power adapter it is one of the most frequent uses to maintain an Arduino stable, the recommended voltage is 7-12 V, and a maximum one is 6-20V, this either depending on the Arduino and the enough power required. A great choice for projects that have a plug nearby and don’t need to be moved.


This is another of the most common ways to power an Arduino, provides a total output current of 500mA, because a USB cable is used to connect it to the computer.

Batteries or external sources

The Using batteries or external sources is another way to sustain an ArduinoHowever, they have a short duration respectively due to their short current capacity. Its consumption can reach from 300 to a total of 500 mA ~ 1 A.

Number of Pins

In electronics, a pin is known to carry electricity from one component to another. An Arduino board is made up of a group of pins from entrance exit They work to connect different expansion boards and microcontrollers. These Pins are used to be programmed by the Integrated Development Environment (IDE), and are powered by a USB type B cable, or a 9V battery. Commonly one board is supplied by 14 digital pins Y 6 analog pins

Digital pins

The digital pins are numbered 0 through 13 and have an input and output configuration, working only with the values High and low. These digital inputs specialize in receiving voltage signals.

The corresponding voltage for an input pin is 0 to 5 volts, thus, better performance is achieved and we prevent the Arduino board from being damaged, for that reason, Do not apply a voltage higher than the allowed. In accordance with recommended operations, these pins work with Pull Down and Pull Up resistors, when in idle state, to distinguish the voltage value from high to low.

Analog pins

Analog inputs they are classified from A0 to A5 for easy recognition. Opt for a resolution of 0-1023 different values, so these inputs are known to be much more expensive and limited than digital ones. Analog signals are measured by taking any value within the range of -Vcc and + Vcc.

Therefore, to measure these signals, an analog-digital converter is required, which is responsible for converting analog measurements into digital measurements encrypted with the number of bits. This means that analog pins can be used for many more tasks than digital pins. Examples of analog input connections include the potentiometer, where the output voltage can be read and removed by the equipment.

Clock speed

Mainly projects carried out with integrated circuits have an oscillator, a tool that helps to verify the process and performance that the project is executing.

That is, the oscillator takes care of the counting of time. The internal clock speed of the Arduino UNO board is 16 MHz, which is read at 16 million clock pulses per second. However, it is worth mentioning that the operation of the Arduino has to go according to a runtime, so the higher the clock speed, the better results will be obtained.

RAM memories

SRAM memory acts as a storage unit, therefore, it is very similar to a RAM memory of a CPU. This dynamic and random access memory is used for the processes carried inside a microcontroller. Its development was specialized to preserve data while it is poweredThis means that if your source of livelihood is interrupted, you can get to lose information.

However, it is a fundamental factor for a short consumption and an advantageous data handling. When we mean a random access to a memory, it means that the locations that are in it can be written or read in any order. For that reason, it is that the memories SRAMs they are much more expensive and efficient.

Flash memory

In this field of electronics, Flash memory has one of the most crucial tasks in designing a project. Its capacity may vary according to the Arduino model used. Flash memory is very similar to SD cards or a Pendrive, since, allows you to store the programming code.

This means that, to avoid faults in relation to different functions of the Arduino, it is necessary to count with a good capacity Flash memory. Another characteristic of these memories is their high efficiency when saving data and codes, because their design allows them to preserve the information, in case the Arduino is turned off.

List of the best Arduino kits and boards for beginners that you should know to develop your own devices

Arduino TC74 temperature sensor

Based on the technical specifications provided by an Arduino, you may consider having a support team to create unique devices.

For that reason, we present you some of the most used Arduino boards and kits so that you can start projects to your liking:

Arduino Starter Kit

It’s a kit with lots of elements to learn how to design simple and complex projects. Contains an Arduino UNO board, and sample plates for your own design tests. What’s more, provides you with a manual with varieties of easy projects and of an expert level, to learn more quickly.

UNIROI Complete Starter Kit

Another of the kits that support Arduino IDE, it is UNIROI. A very basic starter kit, but with a wide range of tools to start programming with the using the UNO R3 board. This kit includes breadboards, 9-volt batteries, different colored LEDs, guides, and CD tutorials for learning projects.

Arduino UNO

This is one of the most popular and well-known plates today. It has an ATmega328 microcontroller very effective to execute the programming that you want to grant it. Among its most outstanding properties, it works with a voltage of 5v and you can use an input voltage of 7-12v. Also, encompasses 14 digital input and output pins, and among them, 6 are PWM outputs, along with 6 analog input pins.

Arduino / Genuino 101

It’s a plate ideal for device design, and thanks to its Intel® Curie microcontroller, It has the advantage of providing better performance and consumes less power. It supports a maximum input voltage of 7-20V, with 14 digital pins, 4 PWM pins and 6 analog pins. 196KB of Flash memory and 24KB SRAM to store programming codes.

Arduino Mega

This model is much more advanced, this means that uses an ATmega2560 central procedure unit, much more powerful than those mentioned above. It has around 70 digital and analog pins, plus 256kB Flash memoryTherefore, it has a great capacity to save different programs.

If you have any questions, leave them in the comments, we will answer you as soon as possible, and it will also be of great help to more members of the community. Thanks! 😉

Mario Jose

Author: Mario José

Graduated in journalism, specialized in investigation, I look for the truth of all things. Now 100% focused on technology, computing and the Internet.

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