Top 10 Arduino Projects For Beginners in 2021 (Honest Opinion)

10. Controlling High Voltage Devices Using Arduino :

OBJECTIVE: At the end of the project you will be able to control your home appliances like led, fan, bulb, etc. from the command written in Arduino IDE. You can adjust the ON and OFF time of these appliances.

One of the most popular modules i.e 2 channel relay module is used in this project which is used widely to control high voltage devices using low voltage signals. So in this project, you will learn how to use a 2 channel relay module with Arduino and its circuit basics.

Components you need for this project are:

1) A.C Appliances like a Bulb.

2)  Arduino Uno

3) Connecting Wires

4) 2-Channel Relay Board

5) Breadboard

6) Battery

Link to the project site is given below:

9. Wall Following Robot

OBJECTIVE: As the name implies a Wall Following Robot is designed in a manner so that it always moves along a wall without hitting it or leaving its path.  This project will also teach you about Motor drivers (used to drive motors using Logic) and Ultrasonic sensors. Minimum two Ultrasonic Sensors are necessary to make a Wall Following Robot.

So By the end of the project, you will know how to use:

A. L293D(Motor Driver)

B. HC-SR04 (Ultrasonic Sensor)

Components you need for this project are:

1) D.C Motors

2)  Arduino Uno

3) Connecting Wires

4) L293D or L298N (Motor H-Bridge)

5) Breadboard

6)  Ultrasonic Sensor

7) Battery

Link to the project site is given below:

8. SERVO MOTOR Control With Joystick

OBJECTIVE: By the end of this project you will be able to make various control mechanism using Servo Motor and Joystick.

Servo Motor is one of the most commonly used motors in applications like RC planes, elevators, and grippers, etc. This makes it necessary for beginners to know how to use a Servo Motor. Vast applications of Servo Motor can be found here.

So after the end of the project, you will know :

A. How to use Servo Motor

B.  How to Send signals from the joystick to Arduino in order to control Servo Motor

Components you need for this project are:

1) Servo Motor

2)  Arduino Uno

3) Connecting Wires

4) Two Joystick

5) Breadboard

6) Battery

Link to the project site is given below:

7. ARDUINO TEMPERATURE SENSOR

OBJECTIVE: To measure the temperature value of surroundings and then print it on an LCD display using Arduino and a Thermistor

A thermistor is a type of variable resistor which changes its resistance in accordance with the temperature of its surroundings. So yes you can it kind of works like an LDR(Light Dependent Resistor) with one difference. Whereas LDR changes its resistance according to the intensity of light, a Thermistor’s resistance depends on the temperature of surroundings.

So By the end of the project, you will know :

A. Basics of a Thermistor and how to use it with Arduino.

B.  How to use an LCD to print the required measured value.

Components you need for this project are:

1) Thermister

2)  Arduino Uno

3) Connecting Wires

4) LCD Display

5) Breadboard

6) Potentiometer

7) Resistors

Link to the project site is given below:

6. Line Follower Robot

OBJECTIVE: To make an Autonomous Robot using Arduino, L298N, and IR sensor which follows a black line over the white surface using Arduino, L298N, and IR sensor.

You must be familiar with this Robot or must have seen it somewhere. A-Line Follower Robot is quite popular among beginners as well as experts. Basic Line follower among beginners and fastest line follower among experts. This project is considered a stepping stone in building a good understanding of Arduino.

You will get to know about IR Sensors which is quite popular and useful and how to use it to make a Line following Robot.

So after the end of the project, you will know :

A. Basics of an IR sensor and how to use it with Arduino.

B. How to use IR sensor’s output to set required logic on Arduino pins in order to control driving motors

Components you need for this project are:

1)  L293D Motor Driver IC

2)  Arduino Uno

3) IR Sensor Module x 2

4) Geared Motors x 2

5) Robot Chassis

6)  12 Volt Battery

6) Connecting Wires

Link to the project site is given below:

5. Alarm Clock

OBJECTIVE: To make an Arduino-based Alarm Clock using  DS3231 RTC Module and LCD display.

In this project, you will be using a DS3231 RTC(Real Time Clock) Module with Arduino. A DS3231 Module works through I2C communication, thus making it easier to use with Arduino. A buzzer is used in this project to indicate Alarm time but you can use a speaker also.

So after the end of this project, you will know :

A. Basics of a DS3231 RTC Module and how to use it with Arduino.

Components you need for this project are:

1)  Arduino UNO

2)  DS3231 RTC Module 

3) 16 X 2 LCD display

4) Buzzer

5) 220-ohm Resistor

6)  10k potentiometer

7)  Connecting wires

8)  Breadboard.

Link to the project site is given below:

4. Dice using LED’S

OBJECTIVE: To make an electronic dice using 6 LEDs, some resistors, and Arduino.

Foundation for this project is entirely the Coding Part whereas Circuit Connections and hardware part is easy. Dice number is indicated by the number of LEDs that glow out of six when the button is pressed.

Components you need for this project are:

1)  Arduino UNO

2)  6 LED’s

3) Button

4) 1k and 10k Resistors

5) Breadboard for connections

6)  Connecting Wires

7)  Breadboard.

Link to the project site is given below:

3. Arduino Based Smart Blind Stick

OBJECTIVE: To make a circuit using an Ultrasonic sensor and Arduino which indicates the object in front by producing a beep sound.

This circuit can act as a smart blind stick if fitted onto a stick. The frequency of the beep sound increases as the stick goes closer and closer to the obstacle. Also, Circuit has an LDR to sense the light intensity and an RF remote to locate Stick remotely.

An ultrasonic sensor is the heart of this Arduino-based Alarm stick. It senses the distance of obstacles and sends this data to Arduino. Arduino further processes this data and thus determine the frequency with which the buzzer produces sound.

So by the end of this project, you will know How to use :

A. HC-SR04 (Ultrasonic Sensor) with Arduino

B. RF transmitter and receiver

Components you need for this project are:

1. Arduino Board

2. Ultrasonic Sensor HC-SR04

3. Buzzer and LED

4. Voltage Regulator L7805

5. LDR

6. 433 MHz transmitter and receiver

7. Perf Board

8. Push button

9. Battery(9 Volt)

Link to the project site is given below:

2. Mobile Phone controlled manual robot:

OBJECTIVE: To make a robot that can be controlled using a Mobile phone by just dialing a number and then using the mobile keypad to move the robot. One can control this robot from any part of the world.

To achieve this, you are going to use a DTMF(Dual Tone Multiple Frequency) Module which is used to simply decode the keypad tones of a Mobile phone. You need two cell-phone for this project. One to dial the number and control the Robot and another one to receive the call which remains on to the robot.

You can program Arduino to use any keypad keys you want to control the Robot.

What is a DTMF Module?

DTMF module stands for dual-tone multiple frequencies. Each number in our mobile phone dial pad is a mixture of two-tone frequencies (higher and lower) and DTMF receives this tone frequency as input and decodes it into an equivalent binary form. DTMF has a wide application in home automation. When a dial pad button is pressed, DTMF receives a particular tone frequency and then decodes it into a binary number which is further processed by Arduino to perform a specific task.

To know more about DTMF MODULE click here.

The tone of each key consist of two different frequency and is used universally:

Binary equivalent of decoded tone frequency on 4 output pins of DTMF Module:

So by the end of this project, you will know  :

A. Basics of a DTMF Module and how to use it with Arduino.

B. How to use L2938N(Motor Driver).

Components required for this project:

1.  Arduino UNO

2.  Manual robot

3.  4 motors

4. DTMF MODULE

5.  L298N Motor driver

6.  12 Volt Battery

7.  Switch

8.  Headphone Jack

9.  Two Cell Phones

10.  Connecting wires

Link to the project site is given below:

1.  Basic LED Cube (4x4x4)

This is one of the coolest projects you can make using the Arduino. It may seem complicated at first but believe me, this project is very simple. You just have to make all connections properly and ensure that each and every LED work. Then just burn the given code to your board and you are good to GO!

Components you need for this project are:

1) Blue LED x64

2) Arduino Board

3) 100-ohm Resistor x4

4) Connecting Wires

5) PCB Board 

Link to the project site is given below: