Best Arduino Projects 2021

As you guys know, Arduino is an open-source platform with easily programmable microcontroller boards combining the power of strong microcontrollers and user-friendly IDEs which can be used to write and upload programs, which run on your computers. Due to its less price and less power consumption, it is effectively used in various industries, robotics, and home automation projects. In this post, we will be looking into some of the cool Arduino projects with tutorials. After going through this post, you should be getting some Arduino project Ideas and start making your own projects.


Why not make a PCB for your Project?

Making a PCB for your DIY project is not hard nowadays. PCB helps to get rid of all messy wires and stuff and gives your project an awesome look. And it’s cool to make your own PCB for your project right?

I use Altium Designer to draw the circuit and design the PCB. It is a powerful tool that can be used to design and create your own PCBs for your project as well as complex and multiplayer PCBs for industrial use. Here is the link to the Altium trial version. So make sure you check it out.

I use Altium Designer to draw the circuit and design the PCB. It is a powerful tool that can be used to design and create your own PCBs for your project as well as complex and multiplayer PCBs for industrial use. Here is the link to the Altium trial version. So make sure you check it out.


Best Arduino Projects 2020 OffRoad Robot
Robotin – 6 (OffRoad Robot Contest Winner)

Cool Arduino projects

During the first month of 2021 and the last months of 2019, some new boards that integrate cellular connectivity and LORA, mainly focusing on IoT have been released, widening the scope of IoT as well as robotics.

Beginners Arduino Projects 2021

Here is a list of the Best Arduino Projects 2021 implementing newer sensors and boards, which can be followed easily and are really interesting to implement. Even if you are a beginner and just started learning Arduino based projects, following these tutorials will be easy. All of the below Arduino based projects are well-explained step by step, with detailed tutorials on how to get started from scratch.

Robotics Projects Video Demo

Some of the Best Arduino Projects 2021 List includes projects employing

  • Wireless Communication including RF, Bluetooth, and WiFi
  • Home Automation
  • Motors Driving
  • Robotics and much more

These are some of the most common Arduino project ideas, that will help you get started with Arduino.


Learn Arduino the Easy Way

Are you new to Arduino? Do you want to improve your skills in Arduino programming? You are in the right place. We have a complete beginner-level tutorial for Arduino which covers everything from scratch. In this free Arduino Tutorial for Beginners guide, we will be taking a look at Introduction to Arduino platform, getting started with Arduino IDE, different types of Arduino boards, and a lot of DIY projects using Arduino. Check it Out!

arduino tutorial for beginners
Arduino Tutorial for Beginners

Lets start learning Arduino


This page will be updated every week.

Best Arduino Projects List

A Kid about to Program Digispark with DigiKeyboard Commands

DigiSpark as HID Keyboard – Complete DigiKeyboard Commands Explained

Digispark HID Keyboard functionality fully explained with step by step tutorial, examples and complete DigiKeyboard…
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Building a Smart Home using Arduino UNO

Building a Home Automation using Arduino and Arduino IOT Cloud | Arduino IOT Projects

Build your very own home automation system using an Arduino Board, Arduino IoT Cloud, and…
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Arduino UNO R4 Minina Specifications and Pin Mapping

We Have the New Arduino UNO R4 Minima | Everything You Need to Know

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Let’s Use Arduino To Take Charge Of The Bittle| Petoi Bittle The Arduino Programmable Robot

Hey, guys welcome back. How about making a DIY Arduino robot dog? What if the…

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DIY Motion Triggered Halloween Prop using Arduino/Digispark | Halloween Project 2022

DIY Motion Sensor Trigger for your Halloween Prop – Complete Step by Step Instructions to…
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Control your Home Devices using Arduino and your Favorite Personal Assistant!

Introduction In the previous video, we build an Alexa-controlled Door Locking System. So many people…

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Making A Gesture Controller Glove using Arduino and Hall Effect Sensor

Hey guys, in this video, we will be making a compact circuit that can be…

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Voice Controlled Door Lock using Alexa and Arduino

We’re going to build an Alexa-controlled door locking system in this video so that we…
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Making a DIY Soldering Fume Extractor with an Adjustable Lighting System

You can protect yourself from the potentially hazardous fumes produced by soldering by building a…
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Create a High Current Motor Driver Shield for Arduino using Piggybacked L293D Hack!

DIY Motor Driver Hack – Piggybacking L293D is an easy way to double the current…
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Making our own Multi-Sensor USB Joystick using Arduino for Gaming and Robotics

Make your own USB Joystick Remote Controller using Arduino to play games in your PC…
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How to make an Arduino Board in your Home? DIY Arduino UNO

Lets make an Arduino Board in your Home – In this project we will be…
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Love is In the Circuit! Beating Heart PCB for Valentines Day

Love is in the Circuit – Best gift for your Tech Valentine. How you can…
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Logic Level Stabilizer for 3.3 V Arduino Boards & Raspberry Pi | Converting 5V Signals to 3.3V

5V – 3.3V Logic Level Converter IC for Arduino and Raspberry Pi Hey, Guys welcome…

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IoT Irrigation System

IoT Based Irrigation System using Arduino | Futuristic Smart Home

A few days back we published an article “Home Automation using Arduino Nano” in our…

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Best Arduino Projects for Exhibition

Best Arduino Science Projects for Exhibition 2022 [Complete Tutorials Available😎]

Here is an awesome collection of the best Arduino projects for Science exhibitions and fairs…
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Controlling Photoshop with Arduino Nano RP 2040 | Arduino HID Project

Easy way to control Adobe Photoshop using Arduino HID Functionality – Make it easier for…
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How To Make A Homemade Light Up Jack O Lantern | DIY Glowing Pumpkin Halloween 2021 Project

It’s that time of year again! Time to get out the glow sticks, pumpkin carving…
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Food serving robot using Arduino | COVID 19 Social Distancing

It is a food serving robo used to serve food in hotels, home, mall, hospitals…
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Automatic Cooling System using Arduino

Smart cooling system, which adjusts the speed of cooling fan efficiently according to rising in…
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Cocktail Mixer - DIY Arduino Project

Bring the Party Home this Holiday Season with DIY Cocktail Mixer using Arduino

Get the party started with this fun Arduino Project – Learn to build your own…
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Smart home safety monitor using Arduino

Taking Care of your Family and Elders using Arduino based Real-Time Home Monitoring System

As I sat in the airport, waiting for my flight to board, I couldn’t help…

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This is How I made a Wireless Code Upload Shield for my Arduino Board

Upload your Code Wirelessly to you Arduino using this Arduino – Bluetooth Program uploader shield…
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DIY Science Project using Arduino

Arduino LED Projects – Time Catcher | Step by Step Instructions

Arduino LED Projects – Create a Time Trapping Glove using simple components. Complete step-by-step instructions…
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Arduino logic level

Arduino Voltage Divider 5v to 3.3 V | Level Shifting Explained

Arduino 5v to 3.3 V Voltage Divider and Level Shifting – We will learn more…
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Programming Pico using Arduino IDE

Raspberry Pi Pico Arduino IDE Coding Step by Step Instructions

How to Program Rasobery Pi Pico using Arduino IDE? Check out this easy way to…
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arduino-wireless-modules

Best Wireless Modules For Arduino for Remote Controlled Robots and Application

Best Wireless Modules for Arduino Add Wireless Connectivity to your Arduino Project with these simple…
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Alexa Home Automation using Arduino

Home Automation using Arduino and Alexa | Arduino Alexa Projects

Make an Alexa Home Automation using Arduino. In this awesome tutorial, we will be making…
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which arduino to buy?

Best Arduino Board |Which Arduino to Buy? Read this before Starting Next Project!

Choosing Arduino Board – Read this article before you buy Arduino Board for your project!…
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Network Security for IoT Devices | Securing the Internet of Things

Network Security for IoT Devices Network Security for IoT Devices is a major concern in…

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Raspberry pi vs Arduino

Raspberry Pi Pico vs Arduino | Read this before starting your next project!

Raspberry Pi Pico or Arduino for my project? A complete comparison between the worlds best…
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Top Arduino Sensors

Best Arduino Sensors | Which Sensor to Buy?

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automatic plant watering system

Automatic Plant Watering System using Arduino Opla IoT Kit

Automatic Plant Watering System – Make an IoT system System that will water your plants…
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Arduino Opla IoT Kit Tutorial

Opla IoT Kit Tutorial | Getting Started with Arduino IoT

Arduino Opla IoT Kit Tutorial – Check out this Step by Step Instructions to get…
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arduino opla kit getting started

Arduino Opla IoT Kit – Start Making your Own IoT Ecosystem

Arduino Opla IoT Kit – Start Making your Own IoT Ecosystem. This kit will enable…
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plant watering system using arduino

Arduino Plant Watering System | Home Automation Project

A few days back we published an article “Home Automation using Arduino Nano” in our…

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pick and place robot arduino kit

Pick and Place Robot Arduino Tutorial | Make a DIY Robot

Pick and Place Robot Using Arduino – Build your own awesome new cool looking robot…
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DIY Rocket Launcher using Arduino

DIY Rocket Launcher using Arduino | Complete Step by Step Instructions

How to make a DIY Rocket Launcher using Arduino – Design the circuit, make a…
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arduino coding tips and tricks

Arduino Coding Tips and Tricks – 5 Easy Tips to Improve the Usability of your Code

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ultrasonic sensor arduino tutorial

Ultrasonic Sensor – Arduino Tutorial for Beginners

Bats and Ultrasonic sound  Have you ever wondered how bats find their prey in the…

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smart phone controlled robot

How to Make a Smart Phone Controlled Robot? Complete Step by Step Instructions

The path to an Off-Road Robot – Our last two projects – The Spinel Crux…

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Arduino Remote Controlled Robot using HC12 Module

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automatic hand sanitizer dispenser using arduino

Automatic Hand Sanitizer Dispenser using Arduino | DIY Contactless Hand Sanitizer

Automatic Hand Sanitizer Dispenser using Arduino Today, we are going to make an automatic hand…

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Pic-Ur-Bot Contest! Show Off your Lockdown Project!

It’s been over 6 months that all of us are locked down. At the beginning…

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More Cool Robotics Projects and Tutorials

Interested in more Awesome electronics Projects? Join our Family and be a part of Great innovative ideas and designs.


Learning DIY Robotics has Never been so EASY!

DIY Robotics is a fun and easy thing you can learn within a matter of minutes if you have a proper guide. Do you want to learn Robotics but don’t know where to start? Then THIS is for you. Here, we will help you get started with DIY Robotics with easy-to-follow, 100% FREE, step-by-step instructions starting from Robotics basics, parts of Robot, and then we will start complete step-by-step tutorials. Here you will also find an awesome collection of Robotics Project Tutorials from beginner level to advanced for you to get started with DIY Robotics.

Robotics Tutorial for Beginners
Robotics Tutorial for Beginners

Start Learning Robotics


These DIY Robots are Really Awesome

Google Mobile ALOHA

Google Mobile ALOHA: The Future of Household Robotics

With help from Berkeley University, Meta, and Stanford University, Google created Mobile ALOHA, an AI
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Robotic Revelations: 36 Fun Facts About the World of Robots 2024

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Transforming Learning through Robotics with mBot 2 Neo – Robot Kit for Beginners

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Bio-inspired Robots

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Best DIY Affordable Arduino Robot Dog | Get your own Boston Dynamics Spot!

Petoi BittleX, the new version of Bittle the companion robotic dog.
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Bittle: The Canine Robot Companion Now with Supercool Sensor Pack

Bittle: The Robot Dog Companion Now with Supercool Sensor Pack

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next-generation robots

Next-Generation Robots – The New Era!

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Let’s Use Arduino To Take Charge Of The Bittle| Petoi Bittle The Arduino Programmable Robot

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Petoi Bittle – The Robot Dog Inspired by Boston Dynamics Spot

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bird robot

Engineers Create Perching Bird-Like Robot

Using sensors, 3D printed hardware, and motors, the robot (named SNAG) can perch itself on a…
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Robotic Innovations of 2022

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Arduino – The Master Controller

Before going to Arduino, let me talk a little bit about microcontrollers. So what are microcontrollers? Microcontrollers are integrated circuits that are basically tiny computers. They can run small simple software programs.

Arduino Projects 2021 Tracked Robot
Arduino Projects 2021 Tracked Robot

They’re low powered enough that they can be powered by a battery for days but they’re fast enough to process data much faster than any human being can think. Arduino is a company in Italy that designs and sells circuit boards that make microcontrollers easy to use. they call these circuit boards Arduinos and there are a lot of different types of Arduino. For example, you got simple boards like the Arduino UNO, which is cheap and good enough for most Arduino projects.

Cool Arduino Projects – Robotics and Home Automation

You could use UNO to control motors, lighting, cameras or even build a simple robot. Then you have more fancy Arduinos with more powerful processors that have WiFi Ethernet and more. The company Arduino open sources as all of their hardware designs, which means that you don’t have to buy from them. There are countless third party companies that make their own variants of the hardware designs. They can’t be called Arduino but functionally they’re the same thing.

cool Arduino projects 2020
Robotin 6

There are also these things called Arduino shields which are basically circuit boards that plug into your main circuit board and let you do more stuff. For example, Adafruit makes shields that let you control motors and servos without having to design motor control circuitry and Sparkfun have shields that let you turn your Arduino into a simple cell phone or an MP3 player. Arduino Projects scopes and opportunities are endless.

Arduino IDE

There’s also the Arduino software development environment and this is what makes it good for beginners with their Arduino Projects. Historically if we wanted to program microcontrollers, you’d have to type out of a lot of binary and memorize a lot of hard to remember registers and instructions then you’d have to use special programming hardware with custom made cables to upload your program onto your microcontroller.

offroad robot 4 wheel drive badland brawler best arduino robot
Badland Brawler

Arduino got rid of all of them. They created their own software that works on Windows, MAC as well as Linux which makes uploading your code as simple as connecting a USB cable and clicking a button. They also created a programming language that lets you configure all of the Arduino hardware products in the same way. Although it’s not simple is learning python the art we now software is one of the easiest programming experiences you’ll ever have.

Best Arduino Projects 2021

When people say they Arduino Projects, they’re probably talking about the UNO. It’s the perfect hardware for beginners Arduino Projects. Now you can get them from Amazon cheaply and if you have the money, I recommend buying one of the many kinds out there where you get a lot of different pieces of hardware to play with.

Arduino Platform can make the interactive projects on home automation, robotics for beginners and experts in home level as well as industrial level. It helps to make the technical environments more easily accessible.

With Arduino Projects 2021 list, we are presenting you with some best and powerful Arduino project ideas as well as tutorials, which are done by various hobbyists and experts. These Arduino projects are very easy to implement and really interesting to work with them. If you have more Arduino project ideas, do let us know in the comments.