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Arduino Projects

Awesome and Exciting Arduino Projects for Beginners

by Tutorial45
written by Tutorial45

Are you looking to get into the world of Arduino and see what you can do with this technology? Below, there are projects for beginners perfect for a low level of programming. These projects should give you a basic idea of the potential of Arduino and maybe you can find inspiration to learn more about this versatile platform.

Arduino is open-source hardware design, so everyone with enough knowledge can make their own boards. There are also lots of beginner’s kits that include an Arduino Board and basic components, such as sensors, breadboard, relays, controllers, LEDs, jumper wires and motors. All projects mentioned below use only the most basic Arduino components.

Arduino Projects For Beginner list

#1: The Knight Rider

The Knight Rider is simply several LED lights blinking one after another. It’s one of the easiest Arduino projects you can find. Before you start, prepare the following components:

  • 10 LED lights
  • Arduino Board
  • 10 x 200Ω or 220Ω resistors
  • Breadboard

With this project, you will learn to use LEDs for loops which will help you proceed to more complex projects. Start with connecting everything together.

Always use a resistor or you can damage your Arduino Board and your LEDs. Even though everything can work without a resistor, it is not worth risking your platform.

Take a negative leg of the LED and put it in the negative bar of the breadboard. Take the positive leg and put in the positive bard of the board. Connect the resistors to the LED and to the board with a jumper wire. Do the same for other LEDs.

Now, all you need to do is to upload a program. After everything is done, the Knight Rider should be working. You can change its speed and add more LEDs.

#2: PIR Motion Sensor

PIR sensor is a movement sensor so every time something moves, it sets Out to High. With this project, you can control the High state and the sensitivity of PIR. During this project, you will learn how to use LEDs and a piezo buzzer and how they can detect motion. Below, there are the components that you will need:

The first thing you need to do is to get all the connections right. You will need to take 5 jumper wires and connect everything. Keep in mind that you should take male-female connectors.

Now, upload the program to your Arduino. Set the frequency to 3,000 Hz. When everything is done, you will hear the sound (just like a blink when you work with LEDs) when your PIR detects the movement. You can change the delay time to change the time of the beep.

#3: Ultrasonic Distance Sensor

With this project, you will use a popular HC-SR04 ultrasonic sensor to allow your robot avoid obstacles and move in different directions. When you’re done, you will have a device that will sense the distance and display in on a screen.

Here is what you need to take for this project:

  • Arduino Uno board
  • HC-SR04 ultrasonic sensor
  • LCD with I2C converter
  • Jumper wires

Start by making all the connections with the jumper wires. At this point, you shouldn’t add your LCD. Now, take an LCD and connect it accordingly. After that, download the library using the Arduino IDE. Just open Sketch – Include Library – Manage Libraries – LCD I2C. And you’re done! This is a very quick project that gives you the skill necessary to build complex robots.

To make everything easier, it’s recommended to take an LCD with an I2C converter so you only need 4 cables to connect it to your Arduino board. The fits loop will be the LEDs setup and the second one is to control the lights. You can change its sensitivity by changing the value in the code.

#4: Arduino Decibel Meter

The aim of the project is to create an Arduino volume meter using LEDs and a microphone. Here is what you will need:

  • Arduino microphone
  • 10 x LEDs
  • 10 x 200-220Ω resistors
  • Jumper wires
  • Breadboard

You can use any microphone compatible with your Arduino board that has an analog output. Moreover, the final result looks best if you take 5 green, 3 yellow and 2 red LED colors.

All you need to do is to connect everything using your Arduino board. Make sure LEDs and resistors are properly connected. Take male-male cables. Then plug the microphone module to the breadboard and you’re done.

#5: Asynchronous LEDs Blink

This is a very simple project to teach you the basics of blinking LEDs built with an asynchronous set. You need to take:

  • Arduino board
  • 6 x LED of any color
  • 6 x resistor 200Ω
  • Jumper wires

As you can see, this project uses the most basic elements of Arduino. The most important part is the hardware part. Always put the longer leg of the LED to the positive pin and the shorter leg to the negative pin. Plug the longer leg to resistors and the shorter leg to the breadboard. Always use resistors when working with LEDs.

#6: Arduino DC Motor Control

There are plenty of expensive transistor models for Arduino but beginners don’t need them. In this project, you will need a cheap and simple transistor to control a motor. It’s a simple way to build a functional H bridge. You will need:

  • Arduino Uno board
  • BC547 transistor
  • 47K ohm resistor
  • Motor
  • breadboard
  • Jumper wires

Start with the wires and make sure everything is properly connected. You don’t have to use this transistor, almost any other will do the job. Just make sure its current and voltage are enough for your motor.

You can use different resistors, but the 47K ohm resistor is very cheap and does its job very well. There are ways to calculate resistor values using a multimeter, but it can be too hard for a beginner so this resistor is recommended.

#7: Rainfall Detector

A rainfall detector is one of the most useful Arduino projects for beginners. The detector will beep, so you will know that the rain has started. For this project, you will need:

  • Arduino board
  • Rain sensor
  • Buzzer
  • Jumper wires

Basically, the rain sensor is a simple PCB board that opens traces when raindrops close the circuit. The special circuitry gives a signal to the digital output pin that you can hear. There is also an analog output pin that you can use to read the values from the sensor.

You have full control of the threshold for a digital output with the potentiometer on your board. Use red LED lights to tell you the rain is detected, and you should touch the sensor with a hand or squeeze it a little bit too see the light. The skin resistance is big and the light will be bright.

You can make your rain sensor useful by putting the sensor outside and leaving other parts inside to protect them from the rain. When the rain starts, you will hear the beeping sound.

#8: RGB LED Arduino

The RGB lights are an LED that contains 3 LEDs: red, green and blue. The RGB can shine in millions of colors and is as easy to use as a regular LED. And LEDs are perfect for beginners because they are very affordable, easy to use and you can make thousands of Arduino projects with them. But this is one of the most interesting LED type, which is different from other LEDs. For this project, you will need:

  • RGB LED
  • 3 x 200 – 220Ω resistor
  • Breadboard
  • Jumper wires

Just connect everything together and you’re done!

To make the LED light shine brighter, you can use foam that comes in boxes to protect shipped items. Just make several holes for the LED to go in and the foam will start changing its colors.

#9: The Stepper Motor

A stepper motor means a precise motor that can be rotated one step at a time. You can find them in robotics, 3D printers, and CNC machines. Some of them can be very expensive and as a beginner, you don’t need them. For this project, take the cheapest stepper motor you can find. The motors are available online.

In this project, you’re going to use 28byj-48 stepper and there are many other projects this motor is suitable for. It’s easy to connect to the Arduino board. For this project, you will need:

  • Arduino Board
  • 28byj-48 stepper motor with driver
  • Jumper wires

You will need 6 cables with female-male connectors. You just need to connect the motor to the driver and that’s it! You can also add a small piece of tape on the rotating head to see that it actually rotates.

#10: Arduino Relay Project

Even if you’re new to Arduino, you can control one of your appliances with it. For example, with this project, you will use different components to create a bridge from the Arduino layer to appliances with a high power rating. For this project, you will need:

  • Arduino Uno board
  • Relay board
  • Cable with socket and plug
  • Jumper wires
  • 230V lamp

You need to prepare the socket and the cable by removing the insulation from the cable. Then, connect the cable to the socket and connect another wire to the socket. The best appliances to control with your Arduino board are a lamp, a washing machine, and a motor. For example, you can program your Arduino board so that it swatches the power input of your washing machine off at a certain time of the day.

#11: Arduino 7 Segment Display

With this project, you will learn how to use a display and how to properly connect it. Displays are used in many other Arduino projects, so learning the basics will be very helpful. You will need:

  • Arduino Board
  • 7 segment display 3 chars
  • 3 x 300Ω resistors
  • Jumper wires
  • Breadboard

One of the easiest ways to connect a display to your Arduino board is to plug it into the breadboard and take male-male cables. Later on, you will be able to plug male-female connectors to display but it’s quite hard for beginners. You will also need resistors to connect an LED to Arduino and protect the board from burning, and you should also connect resistors to your display because it’s made of LEDs.

#12: Clap ON Clap OFF Light

The name of the project is self-explanatory. To make the light, you will need:

  • Arduino Board
  • Relay
  • Microphone module
  • 230V lamp
  • Jumper wires
  • Cable with a plug and a socket

Begin by connecting the relay and the microphone. Use the analog output of the microphone and connect the relay to pin 2. When you turn the loud music on, the lamp starts blinking.

#13: Arduino Stopwatch Project

With this project, you can build an Arduino stopwatch using the simplest components. You will need:

  • Arduino Board
  • LCD with I2C converter
  • Buzzer
  • Potentiometer
  • Jumper wires
  • Breadboard

All you need to do is to set the time between 1 and 120 minutes. After that, it waits for 5 seconds and counts down. When the time is up, it beeps several times. That’s it.

We hope you have been able to build a fully working Arduino project with these ideas. The best thing, you’re not limited to simple projects. When it comes to Arduino, there is an amazing community that’s all about sharing. Many people are happy to share what they did and you can find thousands of Arduino projects, both very simple and very complex.

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