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Top 15 Crazy Arduino Projects

We are undoubtedly in a technological era. We have evolved from sending letters to sending emails and texts, walking to driving, and ultimately even flying. Technology has changed the world immensely. At the core of this evolution lies tech gadgets and devices that most do not pay proper attention to. There are sensors (light, motion, and sound sensors), LEDs, switches, motherboards, et cetera. However, this article shall discuss a unique gadget known as an Arduino board. Arduino has been used in so many academic and scientific-based projects over the years. Some have even used it to develop incredible inventions that we have implemented to date. Arduino boards are super powerful and efficient and, when well implemented, offer excellent output. So how can you implement an Arduino board to make fascinating projects? We will get to that later on.

Have you ever made an Arduino project? Are you thinking about developing an Arduino project? Are you looking for a challenging Arduino project to take on? Or are you just looking to up your game in Arduino projects? Well, this article might help you out. In this awesome Arduino projects article, we shall go through 15 awesome projects that range from simple to borderline fascinating. We shall cover:

  • Arduino nano projects
  • Arduino projects for beginners
  • Cool Arduino projects
  • Arduino Uno projects
  • Arduino LED projects
  • Simple Arduino projects

These projects are all pretty interesting to take on. What’s more, the level of complexity differs. If you are advanced in Arduino projects, there is a category for you. If you are a beginner, then there is one for you too. For those looking to develop crazy cool projects, then there is a section for you too. So follow along and let us help you find that perfect Arduino project for you.

So what exactly is Arduino?

Well, Arduino is an open-source electronic platform that is based on hardware and software that is easy to use. Arduino boards can:

  • Read inputs – when you press a button using your finger, when light strikes a sensor, or when you receive a message from your phone
  • Turn input into an output – switching on a motor after you press a button, activating LED lights after a sensor has been hit by light, displaying an alert after you’ve received a message from your phone.

The best part is that you get to instruct your board on what to do via instructions you set and upload onto the board’s microcontroller. To achieve this, you must implement the Arduino programming language, which is based on wiring, and the Arduino software, which is based on processing.

So why should you use Arduino for your Projects?

There are a couple of reasons why many people have used Arduino over time to develop their projects. What’s more, the Arduino community has had consistent growth too, so why is this? Well, here are a couple of reasons why:

  • Inexpensiveness – Arduino boards are pretty cheap compared to the many microcontrollers that exist. You can get an Arduino board for less than $50 to kick-start your project.
  • Cross-platform – Arduino software runs on Linux OS, Macintosh’s OSX, and the Windows OS. However, many microcontrollers that exist are typically limited to the Windows OS.
  • A clear and easy-to-understand programming environment – If you are looking for an easy-to-use microcontroller for your project, then Arduino has got you. Arduino has a pretty simple interface that you can use with ease. What’s more, its software is also super easy to use and flexible enough to be used by advanced users.
  • Extensible and open source software – You know how people love custom things, from t-shirts to smartphone casing and so on. Well, it provides you with this option. Since the Arduino software is open-source, that means that you can add on the functionalities that you want to be implemented, plus you can also add on extensions, pretty cool. Of course, you have to be good in C++ libraries to achieve this, but it does make Arduino a rather unique microcontroller to use.
  • An extensible and open-source hardware – Arduino board plans are published under a license category known as creative commons; this means that experienced circuit designers can develop their versions of the Arduino module. They can also extend the current module to improve its functionality; this means that the efficiency of this microcontroller can only go up over time.

What is Arduino Projects?

Arduino Project

Arduino projects are projects that utilize Arduino boards to:

  • Add decorations at home
  • Get stuff done automatically
  • Make sensor triggered projects and so much more

Using Arduino, you can make a lot of fascinating projects, such as a clap-activated light (a bulb that lights when it detects a clap) or a smoke detector. You can also merge up an Arduino microcontroller with other gadgets such as a motion detector to achieve more complex projects.

The How to Arduino Projects

Developing an Arduino project can be a tedious process, especially when you do so in a disordered manner. So in this section, we shall go through the steps that you need to take to develop an Arduino project with ease:

Develop your Projects Schematics

Having a project without a plan ultimately leads to confusion at the very end; that is why you need a schematic for your project. A schematic is like a sketch of how your project prototype will look like. The schematic ultimately helps you bring all the pieces you need for our project together. It also enables you to assemble them without wasting a lot of time.

Purchase the materials that you will require

After drawing your schematic, you can now purchase the items you require for your project. You can buy the item online or at a local shop, depending on the complexity of your project. Make sure you buy extra parts. You never know; you might break some items while assembling them and rushing to purchase replacement parts will be wasting a lot of time. Also, if you will shop online for your items, then some might get damaged during shipment. Hence buying extra is pretty essential.

Building and Soldering your Project

After receiving all the items you need for your project, the next step should be to build and solder up your project. To achieve this, you should refer to your schematic; remember that the schematic has the entire project plan; hence all you have to do is, look and then solder as indicated. Lastly, create a project enclosure for your project to shield the circuits. But what is a project enclosure? It’s not safe, so do not panic. You will not be looking for titanium! A project enclosure refers to a hollow block of plastic used to store the circuitry system. You can purchase project enclosures online.

Type in your code

To get an Arduino project up and running, you have to provide a set of instructions that have to be followed by the microcontroller. TheseThese instructions are provided in the form of a program that you write on the Arduino IDE. The IDE refers to the programmer. When you are done writing the code for your program, you then upload it via the IDE.


Sometimes, you will encounter errors in your project. That’s pretty common. Errors in a project can be caused by a lot of things, maybe you did not write the project’s program well, or perhaps you did not assemble the Arduino board appropriately, et cetera. If you encounter an error in your project, you have to troubleshoot. You cannot fix a mistake that you don’t know. Hence you have to locate the error first, then fix it accordingly. If the error is in the program, you might have to make some code adjustments to make it work. For hardware errors, this might result in some desoldering.


You might find that you can make some improvements to your project at the last minute. If this happens, go for it as long as you know what to change. When planning to improve the project’s program, go nuts on the code and upload the improved version. If it’s the hardware part, make changes to the project’s schematic and insert any improvements accordingly. Remember that the schematic has to match the project’s hardware connection.

When all this is done, you can now enjoy your Arduino project.

Now that we know all about Arduino and Arduino projects, it is about time we dive into what we have all been waiting for, the 15 crazy Arduino projects!

15 Crazy Arduino Projects

In this section, we shall go through 15 of the craziest Arduino projects in the world. We shall start with beginner-level projects and up the intensity as we move on higher up the scale of crazy Arduino projects. All the projects we shall go through can be done at home; hence you do not have to worry about getting a lab!

Arduino Projects for Beginners

If you are a beginner in Arduino, this section might help you out a lot. In this section, we shall discuss some pretty easy to make projects using Arduino; hence stick around:

A solar tracker using Arduino

The traditional solar systems have one glitch. They only face one direction. That means that at some point, this solar system doesn’t take in as much energy from the sun as it should due to the sun’s angle. However, you can counter this with ease while using Arduino; here is how.

Using a light sensor having four LDRs, two motors, and an Arduino board, you can develop a modern solar tracking system that follows the sun’s movement. The system ensures that the solar panels get hit by maximum sunlight every time hence absorbing maximum energy.

What you will need to develop this project:

  1. Resistors
  2. LDR
  3. Light sensors
  4. Servo Motor
  5. Arduino UNO

A Tilt Sensor using Arduino

A tilt sensor is a component that senses the orientation of an object. Tilt sensors are extensively utilized in aircraft. The tilt sensors usually provide the vertical and horizontal orientation of an airplane. It transfers this information to the onboard computers. The pilot can then refer to this information for safer traveling.

Tilt sensors come in many different variations depending on the axis they can efficiently measure.

A simple, beginner-level tilt sensor is simply a switch that turns on or off depending on the angle of the set sensor. When using Arduino, you can develop such a sensor that is crucial for detecting single-axis tilt. It is a fun project to take on and a great one to boost your knowledge of Arduino.

What you will need to develop this project:

  1. Buzzer
  2. Resistor
  3. LED
  4. Tilt sensor
  5. Arduino board

A home security system alarm using Arduino

Security is a crucial factor to consider in the modern world. As a result, many advances have been made to improve home security features ranging from laser to CCTVs and alarms. If you are a fan of home security systems, then here is a project that you can take on.

See modern-day home security systems consist of complex features that detect:

  • Temperature change
  • Heat
  • Intruders
  • Fire et cetera

However, what this modern-day home security systems have in common is that they are also pretty expensive, so how can you capitalize on that? Well, here is the answer to that question. Using Arduino and GSM, you can develop a cheap home security system alarm that literally calls you on your cellphone in case of any intruder alert. It is both cost-effective and pretty efficient.

What you will need to develop this project:

advanced arduino projects
  1. A PIR motion detection sensor
  2. SIM 900A GSM module having a SIM inserted
  3. Arduino

Relatively simple Arduino projects

A rotary encoder using Arduino

If you love physics, then here is a project for you. See, a rotary encoder can be defined as an electromechanical device that transforms the angular movement of a shaft to digital or analog code. Rotary encoders are mostly found in radio equipment such as handheld and amateur radio, whereby non-stop 360 rotation is necessary to tune a radio to the right frequency. Using Arduino, you can develop this crucial equipment as a project or as part of a more significant project.

What you will need to develop this project:

  1. LCD
  2. Arduino board
  3. Rotary encoder

An alarm clock using Arduino

Time can be tricky, predictable, and unpredictable (in some way). So here is a project dedicated to time.

In this project, we shall design an alarm clock that implements a real-time clock and Arduino for added functionality. A real-time clock (RTC) is a clock powered by a battery, and it’s used to measure time even when external power is absent. What’s more, this clock can also measure time even when its microcontroller has been reprogrammed.

RTC’s are often found in PCs and are mostly called CMOS (Complementary Metal Oxide Semiconductor).

If you are looking to take things upper a notch, this is the project to take on. What’s more, you can add calendar functionalities to spice things up a little.

What you will need to develop this project:

  1. 10 K Ω POT – 1
  2. 10 K Ω – 2
  3. Buzzer – 1
  4. 16 x 2 LCD display
  5. Push Buttons
  6. DS 1307 RTC Module
  7. Arduino board

Cool Arduino projects

Now let us take things up a notch with some cool Arduino projects that you can take on:

Arduino Mega chessboard

Are you a chess fan? If yes, then how would you like to have a personal digital chessboard? Thrilling, isn’t it. Well, here is a project that can make this happen.

The Arduino Mega Chessboard is a digitized Arduino chessboard that you can make at home using a touch screen, Arduino, and other basic components. To make the project even cooler, you can use a 3D printer to generate a case for the chessboard that matches your project’s purpose.

What you will need to develop this project:

  1. Resistor 100 ohms
  2. Buzzer
  3. 2.8” TFT LCD touch screen
  4. Expansion shield touch pen
  5. Arduino Mega 2560

Enough Already using Arduino

Are you sometimes annoyed by some personalities or celebrities on TV, and you feel like you have had “enough already?” Well, this happens to many people, so how about we solve this using an Arduino project to take things up a notch.

Using Arduino, you can develop a device that you can use to mute your TV whenever a personality or a celebrity that annoys you is about to speak. We call this project the “Enough already project” you get why. The enough already device uses a video experiment shield to decode closed captioning transcription tracks transmitted through the NTSC picture signal; this helps the device capture keywords such as “SNOOKI” and then mute the TV automatically. Earlier on, this type of tech was tested but never implemented. However, we are in an era whereby you can develop such a device at home.

What you will need to develop this project:

  1. Video Experimenter shield
  2. Lady Ada’s IR tutorial
  3. Arduino
  4. Some basic Arduino codes

Robot Arm with a controller

If you like robotics, then here is an interesting Arduino project for you. The robot arm that uses a controller to allow manual control over it lets you explore the world of robotics immensely.

To make the robot arm, all you need are some essential components, an Arduino board, and a 3D printer to develop the hand’s frame. The robot arm has a couple of applications which include:

  • Cleaning garbage
  • Drawing

What you will need to develop this project:

  1. Arduino board
  2. Servo motor MG995
  3. Servo motor DS3115

Now let us look at some custom Arduino projects; these projects will push your Arduino knowledge to the edge, so buckle up!

Arduino nano projects

Nano weather shield using Arduino

You know how complex weather stations monitor the climatic changes and the weather in general. What if I told you that you can make a weather shield that does the same job using Arduino! Well, not technically the whole shebang but using this weather shield project, you can easily tell the pressure and temperature without having to refer to phone apps or a weather station.

What you will need to develop this project:

  1. Nano weather shield
  2. LCD backlight (RGB)
  3. KICad software
  4. Arduino IDE software

A Smart Coffee table using Arduino and Nano

We have evolved from wooden coffee tables to glass coffee tables to the modern-day smart coffee tables with more functionalities than traditional tables. For example, a smart coffee table has lights that change according to the weight of the item or drink placed on it. Using Arduino and nano, you can generate a similar project.

What you will need to develop this project:

  1. Linear regulator
  2. HX 711 Load Cell
  3. Resistor 10K Ohms
  4. Grove – RGB WS2813 LED Strip, waterproof
  5. 3D printer (to print the table structure)
  6. Soldering iron
  7. Transistor BD 135

Automated Nano plant watering system

Do you love plants but hate the struggle of constantly having to water them every now and then? Well, how about a nano Arduino project to solve this. The automated nano plant watering system project is a project that automates plant watering. Using Arduino, nano, and some basic codes and components, you get a pretty fascinating project, so your plants don’t die again.

What you will need to develop this project:

  1. Grove – humidity and temperature sensor
  2. Grove – An OLED display (1.22” V2)
  3. Hot glue gun (mini)
  4. Soldering iron (Mini)
  5. Grove relay
  6. WiFi Serial transceiver module

Arduino UNO projects

An Arduino board has only one UART port. However, it is widely used by Arduino projects enthusiasts worldwide, hence earning a category in this article; let us see what it entails.

Music instrument using Arduino

Using a specialized PCB that tracks your hand gestures and an Uno Arduino board, you can develop a device that can control your computer, music system, TV, and more using gestures. For example, with a flick of a wrist, you can change a channel, or with one snap, you can change the music playing in your music system. You can play around with this project to develop pretty cool functionalities.

What you will need to develop this project:

  1. A mono enclosed speaker, roughly 2W and 6 Ohms
  2. Arduino IDE software
  3. A USB cable
  4. 3 mm  Jack to a 3 RCA adapter cable
  5. A capacitor 10 nF
  6. A resistor 4.75k Ohms
  7. A standalone 3D gesture and tracking breakout

A fingerprint door lock using Arduino Uno

You know how locking yourself out sometimes becomes a pretty bad habit? Well, how about a door that opened using your fingerprint? Now that would save you a lot of money. Using Arduino Uno, a fingerprint sensor, and some essential components, you can develop a fingerprint door lock.

What you will need to develop this project:

  1. LCD RGB Backlight
  2. Energy shield
  3. Servo
  4. Infrared reflective sensor
  5. Fingerprint sensor

Arduino LED projects

LED is used in so many Arduino projects. They offer a sleek modern finish while also performing certain functionalities such as displaying time. Let us look at some pretty fascinating LED projects that might interest you.

Smart Lamp

Autonomous lighting systems seemed like an impossible feat back in the 80s. However, modern tech has proven this wrong. Using Arduino and LEDs, you can develop an autonomous lighting system. One that turns lights on when it gets dark and vice versa autonomously. Now that is a fascinating project.

What you will need to develop this project:

  1. Relay module
  2. Arduino Uno
  3. Generic Relay
  4. A lamp having an AC plug
  5. Jumper wires
  6. SparkFun APDS-9960


You have probably heard of the TIC TAC TOE game if you love playing games. It is a fascinating game, and now, thanks to Arduino and LEDs, one that you can develop on your own to play with your friends and family. To play the game, you punch set boxes to reveal a 0 or an X.

What you will need to develop this project:

  1. A wooden box (custom made)
  2. 12V adapter
  3. 5V adapter
  4. ON-OFF switch
  5. Push Button
  6. Buzzer
  7. DC Socket
  8. Male and Female Header
  9. 1K Ohm Resistor
  10. BC547 Transistor
  11. RGB LED strip
  12. Proximity sensor
  13. Arduino Mega


Developing an Arduino project is pretty fun but also challenging, especially when you are working on a project that is not thrilling to you. We hope that this article has helped you find an exciting, cool, and fascinating project to work on. Remember that practice makes perfect!