Arduino Vs Raspberry PI : Updated 2021

Need help in getting started with your first DIY robotic project? If so, odds are, you are confused too in choosing the right board; either it should be Arduino or Raspberry pi?

Seldom when building any robotic project, both act similarly. And Quite often, we need to choose one according to our requirements.

At that specific moment, we start remarking differences in them. The similar features include attaching a camera, interfacing sensors, building robotics projects, and automating home.

Seize us to look for differentiation and later pick one that will be more suitable.

However, both are great, popular, effective but knowing the differences may help you a lot with your specific project. We realize it, which is why we have written this blog post for interns like you, who want to jump into robotics.

So if you are looking for digging differences between Arduino vs. Raspberry pi, then glad to say, you are in the right place. We just got you covered!

Let’s jump start with knowing each one’s types.

Types of Arduino And Raspberry- Introduction

types of Arduino

Arduino Types

Arduino devices applied to perform repeated tasks, and it was developed in 2005. As time passed, Arduino evolved as per requirements, and Now, in 2021, there are many types of Arduino devices. Each new one somehow succeeded in its previous Model.

We have listed some updated Models to provide you the latest information.

 Arduino UNO

It is a standard one introduced by Arduino ™. it has a simple shape, average memory capacity, shields, etc. overall, It is recommended for beginners to get started.

Arduino Mega

It is more potent than Arduino UNO, slightly oversized, suitable for running lengthy codes as it has extended flash Storage than standard Arduino UNO.

Arduino Leonardo

Essentially Arduino Leonardo is the right choice for those who want to make something like a DRONE because it is designed in a certain way that it can connect directly to your computer via WIFI. You don’t have to attach any module for this.

Smaller in shape, the right choice to pick up for little tasks.

Additionally, It can communicate directly to your PC, where you have installed the Android IDE to run codes.

Therefore, you can get a real-time report covering how the device is performing. And fix errors if they occur.

Raspberry Pi Versions

Types of Raspberry pi

Despite calling types, it would be better to say evaluation because Raspberry pi had been presented as a tiny computer at a low price. First Model was introduced in 2012.

We’ll not get into older versions of raspberry pi because many of them are outdated now.

 So here are some of its recent Models that might be available in 2021.

Raspberry Pi 1

Raspberry Pi 1 possesses a low power processor. Less than 1GHz of clock speed, with 512MB RAM. The worst thing in this version was that it had only two ports. For keyboard and Mouse. No extra Port for Internet Cable or any other plugins…

Raspberry pi 3

After making some changes in raspberry pi 1, they put forward raspberry pi 3. Which was pretty similar to its previous model. (raspberry pi 2)

Raspberry pi 3 had four-layers of processors (Quad-core), which was terrific. And 1.2Ghz of Clock speed shocked tech industries.

And the best thing about this model is that this time it came up with four ports.

Raspberry pi 4: latest version

Lately, they introduced raspberry pi 4, which is getting popular day by day.

Myself saying; it is something that literally can replace your outdated computer.

Talking about its specifications, it has 8 MB RAM with 2.0 GHz of clock speed, just insane!

Not to mention, for ROM (storage), you can use a MicroSD to increase.

Introduction of Arduino and Raspberry Pi

Arduino vs Raspberry PI comparison

First of all, I want you to know their basic usages before hunting for differences in them..

What is an Arduino?

It is a microcontroller; device used to operate for performing repeated tasks through coding. Remember; It Considered as not having any GPU, RAM, ROM etc. By means, you have to connect it with a computer to make it work.

It has various applications in machine learning, being called a microcontroller it can control many tasks.

For example, Arduino can be used for opening a door. Well, it is not that easy to understand for non-technical persons, because it requires technical information to operate this device.

In simple terms, Arduino itself is just a Controller. By giving commands via Arduino IDE( a type of programming language), you can conqueror this controller.

If we talk about its Modules, there are tons of plugins to be used with an Arduino. Notably, the wide range of supported sensors makes this device easy to operate for different purposes.

Sensors make this device to be used for projects: such as turning on lights in a specific condition ( Photoresistor sensor), closing windows when it is humid in the atmosphere (weather sensor), Avoiding Obstacles ( IR sensor) and so on, however, as it is a microcontroller which is why it can perform only one task at a time.

For technical persons it is relatively easy to use, run code on your PC and plug an Arduino as input, then as the Out-put, this device can perform your given task accordingly.

What is a Raspberry PI?

Raspberry Pi is also known as the cheapest PC in the world. It comes up with ROM, RAM, GPU, and in-built HDMI port to connect it to a Monitor or even a Mobile.

Its Board structure looks similar to an Arduino but can be used for even more complicated tasks.

Why have we called this a Cheapest PC? because it has four ports to connect a monitor, mouse, keyboard, and any other plugin if needed. This device turns into a computer. Having all functionalities.

Talking about its operating systems, it has its own OS rassperbiran, which is relatively straightforward and beginner-friendly. Other OSs are also supportable such that Linux OS and Windows 10.

We have only talked about its Basic uses yet-it is more than just a computer.

Similarities between a raspberry Pi Vs Arduino

Similarities between a raspberry Pi Vs Arduino

Raspberry pi can be utilized as a Microcontroller too,  Unlike an Arduino, you are not restricted to run only one task at a time. Expressing further, Arduino is a microcontroller which tends to perform repeated tasks ultimately. It does not collect any DATA. But Raspberry pi is a microprocessor which can store data like a brain so that it can handle multiple functions at once.

For Example; projects which require more than one task at a time.

 Sensing lights when it becomes dark, you want the television to be turned on, and the door will be locked. while the camera is shooting a video.

As you can notice, four multiple tasks are coming about.

  1. Sensing lights
  2. Turning on Television
  3. Locking the door
  4. Recording video

 A microcontroller wouldn’t perform this like an Arduino. Because it has limits to perform tasks. Typically they can suffer only one task at a time.

but a microprocessor can handle multi-tasking easily.

Let’s say now you are familiar with these two. Lets begin comparing them for different purposes.

Raspberry Pi Vs Arduino for Robotics

Raspberry Pi Vs Arduino for Robotics

Arduino is more beginner-friendly as compared to raspberry pi. Not only it has easy to understand circuits, which make wirings a lot easier, but also it has an Arduino IDE (Integrated Development Environment) software that is used to connect your Arduino Board with a PC to run codes with ease.

Do not forget about its limitations. As long as you aim to build a simple robot, you are recommended to choose Arduino. In case this is not your first time. Then, we recommend raspberry pi since it would not limit you from adding additional functions.

I know it is still hard to choose one, but keep reading further. We will surely end up with a clear idea of choosing one.

Now, We’ll be going through some advanced details of robotics so that you can finally arrive with the right idea of choosing the right board for your robotic project.

Arduino for Robotics: Example

Let’s say your task is simple; you want your robot to calculate your room light-intensity when it gets darker, close a particular door.

 Building These types of DIY robotic-applications are a piece of cake. Arduino Board can easily handle.

Raspberry Pi for Robotics: Example

Suppose you want to build a robotic-project that demands a lot of data to be collected, multitasking, making something big for daily systems, not just as a hobby.

Then, go for raspberry pi.

Raspberry Pi is more varied and can act on multiple tasks concurrently.

For example:

You want to build a car which has a Camera. And you want to remote-control it by attaching a receiver. With all this happening, you want your robotic-car to follow a specific color.

By just imagining, it looks considerably difficult, Right?

But it is not that challenging, because a raspberry pi can manipulate this smoothly.

Writing Python code directly in a Raspberry Pi, you can give the commands what to do and define certain conditions. As we have said earlier, it can store data, so you can provide commands as many as you require, and it will start performing.

It has a Microprocessor, which helps to communicate with the data, and can perform multitasking.

Arduino Vs Raspberry PI for sensors

Arduino Vs Raspberry PI for sensors

Interfacing sensors to an Arduino or raspberry pi is not rocket science. They are like accessories, while so ever, we favour Arduino if your project only circulates over a sensor. It is less costly than raspberry and a few inches easier to operate.

It does not indicate here that Arduino put down raspberry pi because we have taken this only attaching a sensor to a Board. If we discover further about using sensors, then our winner will be raspberry pi.

Devices like Arduino, raspberry pi are like a Brain, you have to upload codes which typically inform the Board (Brain) its Functions. But, they need to have the abilities too. Just giving commands is not enough and would not work either.

So, the sensors fulfil this requirement here.

Below we have listed some sensors to have an idea about how they help.

IR (infrared)

This sensor is most commonly used in robotic projects, to communicate through IR waves. Broadly it is used in receivers, wireless controllers, etc.

Ultrasonic Sensor

It helps in determining the long distance in a short time; it measures objects through Ultrasonic waves, and helps a robot to avoid obstacles.


This sensor is kind of EYE for robots, as this sensor behaves accordingly to light it receives, there can be multiple applications to use this in a project. Mainly, it is used to detect a light colour and follow or whatever….

Arduino Vs Raspberry Pi Power Consumptions

Arduino Vs Raspberry Pi Power Consumptions

Arduino, since it is just a microcontroller, consumes only 175MW(Milli Watt), which is relatively low. On the other hand. Raspberry pi, which is a micro-CPU, drains 700MW. It involves 5x more power loss than Arduino. Not a huge waste but higher than an Arduino…

However, not to skip, raspberry pi offers more than an Arduino board, which is why- it needs more energy.

They both have different versions, which implies different rates of power consumption. Usually, an Arduino-nano is on the top if you want less power to be utilized.

Arduino Vs raspberry PI Pricing

Arduino is way cheaper than Raspberry pi if you look at their price tags. Arduino costs around 10$ to 15$, whereas a raspberry pi costs 40$ to 60$. But raspberry pi has duality. It can act as a PC and a microcontroller. Instead, An Arduino is just a microcontroller.

In contrast, raspberry pi features a complete PC, including RAM, GPU 400Mhz video core, in-built HDMI port, and so on. An alternative to a computer. It only requires a Display (LCD), and your brand-new computer is set up.

Whereas, Arduino has nothing to match with a PC. It is just a tool that needs a PC to operate. That’s why it’s termed a controller.

Arduino Vs Raspberry pi for Drones

As the general rule of thumb says, raspberry is more adjustable whereas arduino is limited. In building Drones, actually the winner is our raspberry.In fact, the arduino is not a loser though.

Confused? Read more to get understand

Building a Drone your own is a mind bobbling DIY tech project.

As a beginner it can get too frustrated since it requires some advanced-level skills.

But, no matter which drone you build, there would be a need for a Controller too.

Let’s start with Using  Arduino Boards in a Drone.

As far as we have acknowledged throughout our experience in robotics, we can say that Arduino boards are perfect for just Building a quadcopter for fun.

Let’s say you just want your drone to fly in the air, then without thinking further you can blindly trust arduino.

Nonetheless, if you want some advance adjustment in a drone, mainly capturing real time video, automation IoT so that your drone can move its own and obey your commands.

Things like these require a powerful microprocessor such as raspberry Pi 4.

It would not be wrong, if someone can raise an objection saying “why would one either go for an arduino when a raspberry can do much more than that?”

Well, here is a little explanation that might clear your doubts.

The main difference takes place because of Latency, the rate of transferring commands.

When we use a raspberry Microprocessor in a drone, it could not not give us speedy latency. Because of its huge functionalities. Unless you use DMA. Which  is something that we don’t want to discuss in this guide.

Overall saying, In simple terms, raspberry pi no doubt has huge functions, but at some points its versatility takes him down when it comes to focus on only one command.

In spite of having a powerful processor which can handle several commands at once, it is not useful either when we want it to prefer one to others.

As a result, the Arduino as a microcontroller is the winner here. Because it performs any given command faster. If you just want to build a Drone. Not attaching many sensors or modules.

Then Arduino is a good fit for you.

Arduino Vs Raspberry PI for Cameras

Arduino Vs Raspberry PI for Cameras

Raspberry pi is the champ when it comes to interfacing a Camera module. Because an Arduino does not store enough data, importantly it needs a 3rd party storage to save images when you attach a camera to it. And, it is a bit harder to set up a camera in Arduino. Whereas in a Raspberry pi, there are separate modules for integrating a camera and linking an SD card, which is simple.

It is not all rolling on the storage; you can still do many things with a raspberry pi.

Applying real-time effects, changing the resolution of images, automating capturing pictures procedure, eventually, no matter for which purpose you use, you can do almost everything just by writing a few lines of python codes.

Whether you use it as a security purpose or anything, you will not see any limitation in this.

As in the Arduino boards, you might face some limitations, most importantly, storage and implementing HD camera resolution. Although you can use an Arduino for security purposes only if you use a WIFI camera module (ESP32) that directly connects to the Storage provider, it could be your PC, Mobile, or SD card.

For example, the best use as I consider you could have that.

After connecting an Arduino with a WIFI camera, catching pictures when someone gets closer to a certain distance, buzz the Alarm. You can use any IR sensor for distance measuring.

Still, there are many other projects you can check out, but I have given a simple one to get an idea of how this works.

Arduino Vs raspberry for Home automation

Arduino Vs raspberry for Home automation

Generally speaking, an Arduino board would be preferable to raspberry pi in the home-automation process. Because it is easy to use with any sensor, Arduino Sketches are available to copy-paste codes and upload them on the Device. Although raspberry can do much better than whatever Arduino does, fundamentally this time. Arduino is the winner because it is easy to operate.

Let’s understand further why Arduino is better in home automation.

In a home automation process, let’s say you do not have superior knowledge, and it must not be either since not all of us are technical persons.

We would suggest rising with an Arduino will go more comfortably; for automating Home. Besides, there is an app (1Sheild), Head-controller, for Arduino modules.

The App updates you with real-time changes such as the sensor’s performance, sensor data, and layouts.

For better performance, use digital sensors to arrange tasks like opening doors, watering in a garden, turning on lights, and even the App’s layout assists in all types of projects with ON/OFF features..

Raspberry Pi Vs Arduino for 3D printer

Raspberry Pi Vs Arduino for 3D printer

Raspberry pi is suitable for 3d printers; when it comes to choosing raspberry pi or Arduino. It adds and controls related tasks, just after building your first 3d printer. You can examine real-time DATA as it connects with OCTOPRINT (a software), which is quite helpful, provides all the required DATA of Modules, and let you know if any fault occurs. Respectively, an Arduino mega Device also acts well, but you can’t go through any additional features that are sometimes essential to know; Due to its limitations.

Moreover, if you want to build a 3d printer not associating with any additional features, then, you better go with an Arduino.

Because It would not cost as much money as a raspberry does.

Collectively, you may say this as Arduino is better for just starting-up.

While so ever, building a 3D printer for any specific reason may lead you to choose raspberry as professionals prefer building a 3D printer using raspberry since it has infinite features to cover up things appropriately—best for Long term associated tasks.

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