Why Use CircuitPython in [2023]


CircuitPython has been gaining a lot of attention lately in the field of embedded systems and microcontrollers. In this article, we will discuss why you should use CircuitPython and what makes it different from other popular programming languages like Python and MicroPython. We will also answer frequently asked questions about the language and cover quick tips and facts.

What is CircuitPython?

CircuitPython is a variant of Python programming language designed exclusively for microcontrollers, such as the Adafruit board. It is based on another variant of Python, MicroPython, but has been optimized for simplicity and ease of use to help beginners get started with embedded systems.

CircuitPython is an open-source language, which means anyone can contribute to its development and use it free of charge. It is continually updated to support new microcontroller boards and add features that simplify coding for microcontrollers.

Why Use CircuitPython?

Simple and Easy to Use

One of the significant advantages of CircuitPython is its simplicity. You do not need any specialized development environment or software to get started with CircuitPython. All you need is a microcontroller board that supports CircuitPython and a USB cable to connect it to your computer.

CircuitPython has a simplified syntax and an auto-reloading function that allows you to see the results of your code changes immediately. This feature makes it easy to test and debug your code, which can save you a lot of time in the long run.


CircuitPython is versatile, which means it can handle a vast range of microcontroller applications, including the Internet of Things (IoT) devices, robotics, and automation.

It can also run on various operating systems, allowing you to program the microcontroller board using either Windows, Mac, or Linux. CircuitPython can support almost any sensor or device that can be connected to a microcontroller board.

Rapid Prototyping

CircuitPython is perfect for rapid prototyping due to its easy-to-use syntax and quick feedback.

It has a built-in USB Device and a USB Host, which makes it easier to create interactive projects and communicate with other devices.


CircuitPython was created for beginners, and that makes it perfect for people who are new to coding with microcontrollers. It provides a step-by-step process for writing code and analyzing the results, helping beginners to build their projects with little to no experience in programming.

The language comes with a lot of documentation, code snippets, and tutorials, making the learning curve less steep.

What's the Difference Between Python and CircuitPython?

The primary difference between Python and CircuitPython is that Python is a general-purpose programming language while CircuitPython is specifically designed for microcontroller applications.

Python is an entirely different language, it requires a lot more processing power to run complex applications, and it does not have built-in support for microcontrollers, whereas CircuitPython is simple and has auto-reloading syntax that allows you to test and see the changes immediately.

What is the Purpose of MicroPython?

MicroPython is a version of Python optimized for microcontrollers and is faster and uses less memory than Python. It is an excellent choice for low-power applications that require a lightweight programming language.

MicroPython is ideal for low-end hardware such as microcontrollers, boards, and sensors, and it is suitable for applications that require basic functionality.

What is the Best Language for Microcontrollers?

There is no one-size-fits-all language for microcontrollers, but CircuitPython is a great language for beginners or individuals who want to learn how to program microcontrollers. It is easy to learn and has a low barrier to entry, which makes it ideal for prototyping and creating simple projects.

Python is an excellent choice for more advanced developers or complex applications that require more processing power. C/C++ is another popular choice for more advanced projects and where low-level control is necessary.

Quick Tips and Facts

  • CircuitPython is compatible with several boards such as Adafruit, Sparkfun and Arduino.
  • The CircuitPython board comes with a bootloader preinstalled.
  • CircuitPython is not suitable for some advanced applications such as low-level control applications, driver development, or custom hardware controllers.


In summary, CircuitPython has several advantages that make it a great language for microcontroller programming. It is easy to learn, versatile, and designed for rapid prototyping, making it ideal for beginners and individuals who want to learn how to program microcontrollers.

While CircuitPython has some limitations, its ease of use, and auto-reloading feature make it perfect for creating simple projects and testing out new ideas.

If you are looking to get started with embedded systems development, CircuitPython might be an excellent choice for you.

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