All About Make Arduino Based Calculator

All About Make Arduino Based Calculator

Calculators have become an indispensable tool in our daily lives, aiding us in everything from simple basic arithmetic to complex mathematical calculations. With the advent of technology, these once simple devices have evolved to become more versatile and powerful, providing us with a vast array of functions and features. One such advancement is the Arduino based calculator, which offers a unique and customizable approach to solving mathematical problems. In this article, we will delve into all the details of this innovative calculator, discussing its components, programming, and its potential uses. Whether you are a curious learner, a beginner in electronics, or an experienced coder, this is the perfect place to learn all about the exciting world of Arduino based calculators.

How To Make Arduino Based Calculator?

How To Make Arduino Based Calculator?

To make an Arduino-based calculator, you will need the following components:

1. Arduino board
2. 16×2 LCD display
3. 4×4 Keypad
4. Jumper wires
5. Breadboard
6. Resistors
7. Potentiometer

Once you have all the necessary components, follow these steps to make the calculator:

Step 1: Connect the LCD Display

Connect the LCD display to the Arduino board using jumper wires. The display needs to be connected in 4-bit mode, so make sure to follow the correct pinout. You can refer to the datasheet of your LCD display for the pinout diagram.

Step 2: Connect the Keypad

Connect the keypad to the Arduino board using the same technique as the LCD display. The keypad will have 8 pins in total, 4 for the columns and 4 for the rows. These pins need to be connected to digital pins on the Arduino board.

Step 3: Connect the Potentiometer

To adjust the contrast of the LCD display, you will need to connect a potentiometer between 5V and GND. The wiper of the potentiometer should be connected to the VO pin of the LCD display. This will allow you to adjust the contrast as needed.

Step 4: Write the Code

The code for the calculator will need to be written in the Arduino IDE. You can use the keypad library to read the key presses and the LiquidCrystal library to control the LCD display. The code will involve taking input from the keypad, performing the necessary calculations, and displaying the result on the LCD display. You can refer to online tutorials or examples to write the code or come up with your own implementation.

Step 5: Test and Debug

Once you have written the code, upload it to the Arduino board and test it out. Use different input values and check if the calculator is performing the calculations correctly. If you encounter any errors or bugs, go back to the code and debug it until you get the desired results.

You can also add additional features to the calculator, such as memory functions or advanced mathematical operations, by adding more code and components.

In conclusion, making an Arduino-based calculator is a fun and educational project. It allows you to understand the basics of electronic circuits and programming while also creating a useful device. With some basic knowledge and the right components, you can easily build your own calculator.

Step 1: Collecting The Components

Step 1: Collecting The Components

The first step in building any tech device or system is to collect all the necessary components. This may seem like an obvious step, but it is crucial to ensure that you have all the necessary parts to complete your project. Here is a breakdown of the process:

1. Determine the purpose of your project: The first step is to have a clear understanding of what you are trying to achieve. Are you building a computer? A mobile app? A robot? Knowing the purpose of your project will help you determine the components you need.

2. Make a list of components: Once you know the purpose of your project, make a list of all the components you will need. This may include hardware, software, and any other materials such as wires, screws, or batteries.

3. Research and compare prices: Before purchasing any components, it is important to do some research and compare prices from different vendors. You may find that some components are cheaper from one vendor than another, saving you money in the long run.

4. Consider compatibility: It is crucial to make sure that all of the components you select are compatible with each other. For example, if you are building a computer, you need to make sure that the motherboard is compatible with the processor.

5. Order or purchase components: Once you have completed your research and have a list of compatible components, it is time to order or purchase them. If you are ordering online, make sure to double-check the specifications and compatibility before making the purchase.

6. Keep track of your budget: As you are collecting components, make sure to keep track of your budget. It is easy to get carried away and overspend, so it is important to have a clear understanding of how much you can afford to spend.

7. Check for warranties: Lastly, before you finalize your component purchases, double-check to see if there are any warranties available for the parts. This can give you peace of mind in case any components malfunction or break.

In conclusion, collecting all the necessary components is an important first step in any tech project. Taking the time to research, compare prices, and ensure compatibility will save you time and money in the long run. With a clear understanding of your project’s purpose and a well-planned list of components, you are well on your way to building your tech device or system.

Step 2: Working

Step 2: Working

In this step, we will be discussing the important aspects of working in the tech industry. From developing new products to troubleshooting issues, working in this field requires a wide range of skills and knowledge.

1. Collaboration:

Collaboration is essential in the tech industry, as many projects require different teams and departments to work together to achieve a common goal. Communication and teamwork skills are crucial for success in this field.

2. Creativity:

Innovation is key in the tech industry. As a tech blogger, you are constantly exposed to new ideas, products, and technologies. It is important to think creatively and come up with fresh ideas to keep up with the constantly evolving nature of the industry.

3. Problem-Solving:

As with any job, there will be challenges and problems that arise while working in the tech industry. It is important to have strong problem-solving skills to effectively troubleshoot and come up with solutions.

4. Technical Skills:

Having a strong understanding of various coding languages, software applications, and other technical skills is crucial in this field. As a tech blogger, it is important to constantly keep up with the latest technologies and trends to provide accurate and relevant information to your readers.

5. Time Management:

In the fast-paced world of tech, time management is crucial. Meeting deadlines and managing multiple projects simultaneously is a skill that is highly valued in this industry.

6. Constant Learning:

Technology is constantly changing and evolving, and so is the tech industry. As a tech blogger, it is important to stay updated with the latest developments and continuously learn new skills to stay relevant in the industry.

7. Attention to Detail:

In the world of coding and development, even the smallest mistake can lead to big problems. Having a keen eye for detail and being meticulous is important to ensure the quality and accuracy of your work.

8. Adaptability:

Technology is constantly evolving, and so are the methods and tools used in the industry. Being adaptable and open to learning new things is important to keep up with the ever-changing landscape of the tech world.

9. Continuous Improvement:

The tech industry is highly competitive, and to stay ahead, it is important to constantly strive for improvement. This includes improving your skills, processes, and products.

10. Work-Life Balance:

Lastly, it is important to maintain a healthy work-life balance in the tech industry. With the constant demands and fast-paced nature of the work, it is easy to get caught up in the job, but it is important to take breaks and recharge to avoid burnout.

In conclusion, working in the tech industry requires a combination of technical skills, creativity, collaboration, and adaptability. As a tech blogger, it is important to continuously learn, improve, and maintain a work-life balance to be successful in this field.

Step 3: Simulating the Circuit

Step 3: Simulating the Circuit

Simulating the circuit is an essential step in the process of designing and testing electronic circuits. It allows engineers and designers to analyze the behavior of the circuit without having to physically build it. This not only saves time and resources but also provides a better understanding of how the circuit will behave in real life.

There are several tools and software programs available for simulating circuits, such as SPICE (Simulation Program with Integrated Circuit Emphasis), LTspice, and Proteus. These programs use mathematical models to predict the behavior of the circuit based on its components, their characteristics, and the connections between them.

The first step in simulating a circuit is to create a schematic diagram. This is a visual representation of the circuit, showing all the components and their connections. Most simulation software programs have a user-friendly interface that allows users to easily create and modify the schematic diagram.

Next, the component values, such as resistor values and capacitor values, need to be entered into the simulation program. This information can be taken from the datasheet of the component or measured using testing equipment. It is essential to ensure that the values entered are accurate to get accurate results from the simulation.

Once the schematic diagram and component values are entered, the simulation can be run. The software will analyze the circuit and generate results that can be viewed in the form of graphs, tables, or numerical values. These results help to identify any potential issues in the circuit, such as voltage drops, current limitations, or component failures.

Simulations can also be used to optimize the circuit design and make changes based on the results. For example, if the simulation shows a high voltage drop across a resistor, the value of the resistor can be adjusted to reduce the drop. This iterative process helps to fine-tune the circuit design and improve its performance.

Simulations can also be used to test the circuit under different conditions, such as changing input voltages or component values. This allows designers to understand how the circuit will behave in different scenarios and make necessary changes to ensure its functionality.

In conclusion, simulating the circuit is an important step in the process of designing and testing electronic circuits. It helps to save time and resources, improve the circuit’s performance, and identify any potential issues. With the advancement of simulation software, engineers and designers can now easily and accurately simulate complex circuits, making circuit design and testing more efficient and effective.

Step 4: Assembling The Circuit

Step 4: Assembling The Circuit

Once you have gathered all the necessary components and have a clear understanding of the circuit diagram, it is time to assemble the circuit. Here are the steps to follow for assembling the circuit:

1. Prepare the breadboard: The first step is to prepare the breadboard by cleaning it and ensuring that it is free of any dust or debris. This is important for ensuring good contact between the components and the breadboard.

2. Plan the placement of components: Before placing any components on the breadboard, it is important to have a clear understanding of where each component will go. This will help avoid confusion and mistakes while assembling the circuit. You can refer to the circuit diagram and mark the spots on the breadboard for each component.

3. Insert the components: Start by inserting the power supply components, such as batteries or a power supply module, onto the breadboard. Make sure to connect the positive (+) and negative (-) terminals of the power supply correctly to the breadboard. Next, insert the rest of the components according to your marked spots, making sure to connect them in the correct order and orientation as shown in the circuit diagram.

4. Connect the components: Once all the components are inserted, it is time to connect them using jumper wires. These wires act as the conductors for the electric current and help complete the circuit. Use different colored wires for different connections to avoid confusion. You can also use wire cutters to trim the wires to the desired length.

5. Double check the connections: Before powering on the circuit, it is important to double check all the connections. Make sure that all the components are connected in the correct order and orientation. Also, check for any loose connections or wires that may be touching each other and could cause a short circuit.

6. Power on the circuit: Once you are satisfied with all the connections, it is time to power on the circuit. If everything is connected correctly, the circuit should work as intended. If not, turn off the power and double check your connections.

7. Test the circuit: It is always a good idea to test your circuit to ensure that it is working properly. You can use a multimeter to measure the voltage and current at different points of the circuit and compare them to the expected values. This will also help you identify any potential issues with your circuit.

8. Make necessary adjustments: If your circuit is not functioning as expected, you may need to make some adjustments. You can try replacing components, checking for loose connections, or consulting the circuit diagram for any errors.

Once you have assembled the circuit and everything is working correctly, you can tidy up the wiring and secure the components to the breadboard using adhesive or zip ties. With the circuit now assembled, you can move on to testing it in different conditions or incorporating it into a larger project. Remember to always turn off the power before making any adjustments to the circuit to avoid any accidents.

Step 5: Getting Started With Arduino

Step 5: Getting Started With Arduino

Arduino is a popular open-source electronics platform based on easy-to-use hardware and software. It is designed for anyone interested in creating interactive projects and prototypes. Arduino has become a favorite among hobbyists, students, and professionals alike due to its versatility and user-friendly approach. Here is a step-by-step guide to get started with Arduino:

Step 1: Purchase an Arduino board

The first step to getting started with Arduino is to purchase an Arduino board. There are a few different types of boards available, but the most common one is the Arduino Uno. You can purchase it from an official retailer or online from websites like Amazon or Adafruit.

Step 2: Download the Arduino software

The next step is to download the Arduino software from the official website. The software is available for free and is compatible with Windows, Mac, and Linux operating systems. You can also find detailed instructions on the website for downloading and installing the software.

Step 3: Connect the board to your computer

After downloading the software, you need to connect the Arduino board to your computer using a USB cable. Make sure to select the correct port on your computer if you have multiple USB ports.

Step 4: Create your first project

The Arduino software comes with a wide range of examples and libraries, making it easy to create your first project. You can also find many tutorials and project ideas online. Start with a simple project that involves blinking an LED or playing a simple tune using a buzzer.

Step 5: Learn the basics of coding

Learning the basics of coding is crucial to get the most out of your Arduino board. The Arduino software uses a simplified version of C++, making it easy for beginners to learn. You can start by understanding the basic syntax and using variables, loops, and conditional statements in your code.

Step 6: Experiment and explore

One of the best things about Arduino is its endless possibilities. You can use it to control motors, sensors, lights, and much more. Experiment and explore different components and sensors to get a better understanding of how they work. You can also join online forums and communities to connect with other Arduino enthusiasts and learn from their projects.

Step 7: Take your project to the next level

Once you have a good understanding of the basics, you can take your project to the next level by adding more complexity and functionality. You can also design your own custom circuit boards using the Arduino software and 3D print your project enclosures.

In conclusion, getting started with Arduino is an exciting and fun journey that can lead to endless possibilities. By following these steps and continuously learning and experimenting, you can create unique and innovative projects using Arduino. So don’t wait any longer, dive in and start exploring the world of Arduino!

Step 6: Understanding The Code

Step 6: Understanding The Code

Understanding the code is a crucial step in the development process for any tech blogger. It is essential to understand the code to effectively explain it to readers and provide accurate information. Here are some tips for understanding the code:

1. Familiarize yourself with the programming language: Before diving into the code, it is crucial to have a basic understanding of the programming language used. Each language has its own syntax, rules, and conventions, so having a grasp on these fundamentals will make it easier to interpret the code.

2. Break the code into smaller parts: The code can often seem overwhelming, especially for beginners. One way to understand it better is to break it down into smaller parts and focus on understanding each section. This will make it easier to follow the code’s flow and identify any bugs or errors.

3. Use comments and documentation: Most programmers include comments within the code to explain what each line or section does. These comments are helpful in understanding the logic behind the code and can provide valuable insights. If there are no comments, it is a good idea to refer to the documentation for the programming language or framework to gain a better understanding of the code.

4. Experiment with the code: Another effective way to understand the code is to experiment with it. Make changes to different variables, and observe how it affects the code’s behavior. This hands-on approach will give you a deeper understanding of the code’s functionality.

5. Research and consult with other developers: If you encounter a section of code that you cannot understand, it is always helpful to research it and seek advice from other developers. There are online forums and communities where developers share their knowledge and expertise, making it easier to get clarity on complex code.

6. Debugging: Debugging is an essential component of understanding the code. It involves identifying and fixing any errors or bugs in the code. Debugging can be challenging, but it is a vital skill for any tech blogger. Learning how to debug effectively will not only help in understanding the code but also in troubleshooting and writing accurate tutorials.

In conclusion, understanding the code is crucial for a tech blogger to create informative and helpful content. By following these tips and techniques, you can gain a better understanding of the code and provide valuable insights to your readers. Happy coding!

Step 7: Testing

Step 7: Testing

Testing is a critical step in the development process for any technology. It involves evaluating the performance and functionality of a product or software to ensure it meets the desired standards and requirements.

There are various methods of testing, and the chosen approach depends on the type of technology being developed. Some common types of testing include functional testing, performance testing, user acceptance testing, and security testing.

One of the primary goals of testing is to identify and fix any bugs or errors in the technology. This is crucial as even small bugs can cause significant issues and can negatively impact the user experience. By thoroughly testing the technology, developers can locate and fix these bugs before the product is released to the public.

Testing also helps ensure that the technology is user-friendly and intuitive. User experience (UX) testing involves getting feedback from actual users and making necessary improvements based on their input. This ensures that the technology meets the needs and expectations of its intended audience.

Another crucial aspect of testing is compatibility testing. This involves checking how the technology performs on different devices, operating systems, and browsers. With the vast variety of devices and platforms available today, it is essential to ensure that the technology works seamlessly across all of them.

Moreover, testing also helps ensure the security of the technology. This involves checking for vulnerabilities and potential exploits that can compromise sensitive user data. With the increasing instances of cyber attacks and data breaches, security testing has become a critical part of the development process.

As technology continues to advance and evolve, testing becomes even more crucial. It is an ongoing process that should be done at every stage of development, from the initial design to post-release updates. By continually testing and improving the technology, developers can ensure that it remains functional, secure, and user-friendly.

In conclusion, testing is an integral part of the technology development process. It ensures that the technology meets the required standards, is functional and user-friendly, and is secure. It is a vital step that should not be overlooked to deliver a high-quality and successful product.


In conclusion, the Arduino based calculator is a highly versatile and innovative tool that brings the power of computer programming to the world of mathematics. With its ability to perform complex calculations, store data, and display results, this calculator has the potential to revolutionize the way we approach problem-solving. Its open-source platform allows for endless customization and improvement, making it a valuable resource for students, hobbyists, and professionals alike. Whether you are a seasoned programmer or just learning the basics, the Arduino based calculator is an accessible and fun way to explore the intersection of technology and mathematics. So why not give it a try and unleash your creativity with this powerful and versatile device?

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