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What are the Best Microcontroller in 2023

Date: 03-01-2024 ClickCount: 459

Definition of Microcontroller

A microcontroller is a compact integrated circuit (IC) that includes a processor core, memory (both volatile RAM and non-volatile ROM or Flash), and various input/output peripherals, all integrated onto a single chip. It's designed to execute specific tasks or control a particular system within embedded applications.



Up to year 2023, Is there Any best Microcontroller?


The "best" microcontroller often depends on the specific requirements of a project, such as processing power, memory, input/output capabilities, cost, and ease of programming.


Here are the top popular microcontrollers,



Known for its ease of use and extensive community support, Arduino boards like the Arduino Uno, Arduino Nano, and Arduino Mega were widely popular among hobbyists, educators, and prototypers due to their simplicity and versatility.



Raspberry Pi

While not a traditional microcontroller, Raspberry Pi single-board computers were immensely popular for their ability to run full operating systems and handle more complex tasks compared to typical microcontrollers. They found applications in various projects ranging from home automation to robotics and beyond.

Raspberry Pi


ESP32 and ESP8266

These microcontrollers from Espressif Systems gained popularity for their integrated Wi-Fi and Bluetooth capabilities, making them ideal for IoT (Internet of Things) projects.

 ESP32 and ESP8266


The ESP32 and ESP8266 are series of low-cost, low-power microcontrollers manufactured by Espressif Systems. They are known for their integrated Wi-Fi and Bluetooth capabilities, making them highly popular for IoT (Internet of Things) projects. Here are key features of each:




  • Wi-Fi Connectivity: The ESP8266 was the first series released by Espressif and gained widespread popularity due to its built-in Wi-Fi capabilities.
  • Low Cost: Known for its affordability, making it a preferred choice for budget-friendly projects.
  • Community Support: The ESP8266 has a large community providing extensive resources, libraries, and support.




  • Dual-Core Processor: The ESP32 features a dual-core processor, offering more computational power compared to the ESP8266.
  • Wi-Fi and Bluetooth: In addition to Wi-Fi, the ESP32 also integrates Bluetooth connectivity, expanding its range of applications.
  • Rich Peripheral Set: The ESP32 offers a wider range of peripherals and interfaces, including ADCs, DACs, SPI, I2C, UART, and more.
  • Enhanced Power Management: It includes various power-saving modes for efficient energy consumption, crucial for battery-operated devices.


STM32 Series

STM32 microcontrollers by STMicroelectronics were favored in more advanced projects due to their performance, peripherals, and support for a wide range of development environments.


Here are some key STM32 series lines:


  • STM32F Series: Known for its high performance and wide range of peripherals, the STM32F series offers a balance between power consumption and processing power. It's suitable for applications requiring higher computational capabilities.
  • STM32L Series: Focused on low-power operation, the STM32L series is designed for battery-powered or energy-efficient applications. It's optimized for ultra-low power consumption without compromising performance.
  • STM32H Series: Positioned for high-performance applications, the STM32H series offers high processing power, extensive peripheral options, and advanced features suitable for demanding tasks.
  • STM32G Series: This series is tailored for efficient processing and cost-effectiveness, making it suitable for a wide range of applications, including industrial control, consumer electronics, and more.
  • STM32WB Series: Integrating both Bluetooth Low Energy (BLE) and Wi-Fi capabilities, the STM32WB series targets IoT applications requiring wireless connectivity.
  • STM32MP1 Series: A series that combines microcontroller and application processor capabilities in a single chip, suitable for embedded systems requiring both real-time control and rich multimedia processing.


PIC Microcontrollers

Microcontrollers from Microchip Technology, especially the PIC series, remained popular in industrial and commercial applications due to their reliability and robustness.

You may like: Introduction to PIC Microcontroller 2022>>


How to Choose a “Best” Microcontroller?

Choosing the "best" microcontroller depends on various factors, and the definition of "best" can vary based on the specific requirements of your project. Here are some key considerations to help you choose the right microcontroller:


1. Performance Requirements

Evaluate the processing power, clock speed, memory (RAM and Flash), and I/O capabilities needed for your application. Some projects might require higher computational power, while others might need low power consumption.


  • For higher computational power - consider STM32H7 series by STMicroelectronics.
  • For low power consumption - explore the MSP430 series by Texas Instruments.


2. Peripherals and Interfaces

Consider the required peripherals like ADCs, DACs, UART, SPI, I2C, GPIO pins, USB, Ethernet, and wireless connectivity (Wi-Fi, Bluetooth, etc.). Ensure the microcontroller has the necessary interfaces for your project.


  •  For diverse interface options - STM32 series offers a wide range of peripherals.
  •  For built-in Wi-Fi and Bluetooth connectivity - consider ESP32 by Espressif Systems.


3. Power Efficiency

If your project requires low power consumption or battery operation, look for microcontrollers with low power modes or efficient power management features.


  • MSP430 series by Texas Instruments is known for its ultra-low power consumption, suitable for battery-operated devices.


4. Development Environment and Tools

Assess the availability and quality of the development tools, IDEs, compilers, libraries, and community support. A robust development ecosystem can significantly ease the programming and debugging process.


  • Arduino boards like the Arduino Uno or Arduino Mega provide an excellent beginner-friendly development environment with a vast community and extensive libraries.
  • For more advanced development, the STM32CubeIDE for STM32 series is a powerful tool.


5. Cost and Availability

Consider the overall cost of the microcontroller, including development tools, peripherals, and support components. Ensure that the microcontroller is readily available and has a stable supply for your project's lifecycle.


6. Compatibility and Integration

Check if the microcontroller integrates well with other hardware components and if it's compatible with the necessary software or operating systems for your application.


  • STM32 series integrates well with various hardware components and has good compatibility with different software and operating systems.


7. Reliability and Support

Look for microcontrollers from reputable manufacturers known for quality and reliability. Consider technical support, documentation, and long-term product support.


Microchip PIC series is known for its reliability and long-term product support. Additionally, the STM32 series from STMicroelectronics has a good reputation for quality and support.


8. Size and Form Factor

Consider the physical size and form factor of the microcontroller, especially for space-constrained applications or when designing compact devices.


  • For space-constrained applications, consider compact microcontrollers like the ATtiny series from Atmel or the PIC10/PIC12 series from Microchip.


Further Reading: Best Microcontroller for IoT and How to Choose 2023

                             Choosing the Best Microcontroller For Robotics 2023


  • CPU vs MCU: What are Differences
  • PIC18F252 8-bit Microcontroller: Datasheet, Features and Application


  • What factors should I consider when choosing a microcontroller?
  • Factors such as processing power, memory size, peripherals (ADC, DAC, UART, etc.), power consumption, cost, ease of programming, available development tools, and community support are crucial when selecting a microcontroller.
  • What are some popular microcontroller families?
  • Popular families include the Arduino (based on various Atmel and Microchip microcontrollers), PIC (by Microchip), STM32 (by STMicroelectronics), AVR (by Atmel/Microchip), ESP8266/ESP32 (by Espressif Systems), and ARM Cortex-M series (offered by various manufacturers).
  • Which microcontroller is best for beginners?
  • Microcontrollers like the Arduino Uno or Nano, which have an extensive community, user-friendly IDE (Integrated Development Environment), and plenty of tutorials, are often recommended for beginners due to their ease of use.
  • What microcontroller is suitable for IoT applications?
  • Microcontrollers such as the ESP8266 and ESP32 are well-suited for IoT due to their integrated Wi-Fi and Bluetooth capabilities, ample processing power, and low power consumption.
  • Which microcontroller has the best performance?
  • Microcontrollers with higher clock speeds, more memory, and advanced peripherals often offer better performance. ARM Cortex-M4 or M7-based microcontrollers typically provide high performance in terms of computation power.
  • What microcontroller is best for low-power applications?
  • Microcontrollers designed specifically for low power, like those in the MSP430 series by Texas Instruments or the STM32L series by STMicroelectronics, are suitable for low-power applications.
  • What microcontroller should I choose for industrial automation?
  • Microcontrollers with robust industrial-grade features, such as enhanced ESD protection, wide temperature range, and reliability, like those in the STM32 or PIC32 families, are often used in industrial automation.
  • Which microcontroller has the most extensive ecosystem or community support?
  • Microcontrollers like Arduino and those in the STM32 or PIC families have extensive communities offering a wealth of tutorials, libraries, and forums for support.
  • What is the most cost-effective microcontroller?
  • Microcontrollers from various manufacturers come in a range of prices. Generally, entry-level microcontrollers like those in the AVR, PIC, or STM32 families offer a good balance of performance and cost.


Kristina Moyes is an experienced writer who has been working in the electronics industry for the past five years. With a deep passion for electronics and the industry as a whole, she has written numerous articles on a wide range of topics related to electronic products and their development. Kristina's knowledge and expertise in the field have earned her a reputation as a trusted and reliable source of information for readers interested in the latest advancements in electronics.

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