The Most Popular Microcontroller, Ranked

Choose the microcontroller you think is the most popular!

Author: Gregor Krambs
Updated on Jun 23, 2024 07:04
In the dynamic world of electronics, the importance of microcontrollers is paramount, as they are the fundamental building blocks for designing versatile and efficient electronic projects. By voting on which microcontroller you find most effective, you contribute to a clearer market overview, helping both newcomers and seasoned engineers make informed decisions. The collective experience and opinions of users from around the world drive the continuous updates to this ranking, ensuring it remains a reliable source of information. Your participation by casting votes or simply viewing the rankings helps everyone better understand the trends and preferences in the electronics community, ultimately influencing future technological developments and innovations.

What Is the Most Popular Microcontroller?

  1. 1


    A family of 32-bit microcontroller integrated circuits by STMicroelectronics, the STM32 is based on the ARM Cortex-M processor.
    • Core: ARM Cortex-M
    • Series: Multiple (F0, F1, F2, etc.)
  2. 2


    The ESP8266 from Espressif Systems is a highly integrated Wi-Fi SoC for IoT applications, known for its low cost and powerful features.
    • CPU: Tensilica L106
    • Wi-Fi: 802.11 b/g/n
  3. 3

    Raspberry Pi Pico

    Unlike other Raspberry Pi boards, the Pico is a microcontroller board based on the RP2040, designed for physical computing projects.
    • CPU: Dual-core ARM Cortex-M0+
    • Clock Speed: 133 MHz
  4. 4


    Popularized by the Arduino UNO board, the ATmega328 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture.
    • Flash Memory: 32 KB
    • Clock Speed: 20 MHz
  5. 5


    An upgrade to ESP8266, the ESP32 is a low-cost, low-power system on a chip microcontroller with integrated Wi-Fi and dual-mode Bluetooth.
    • CPU: Xtensa dual-core
    • Bluetooth: v4.2 BR/EDR and BLE
  6. 6

    Teensy 4.0

    The Teensy 4.0 is a high-performance ARM Cortex-M7 powered board, designed for both real-time applications and high-speed USB communication.
    • CPU Speed: 600 MHz
    • Flash Memory: 1024 KB
  7. 7

    Arduino Mega 2560

    Based on the ATmega2560, the Arduino Mega 2560 is a microcontroller board designed for complex projects requiring multiple pins.
    • Flash Memory: 256 KB
    • Digital I/O Pins: 54
  8. 8


    Known for its use in the Arduino Leonardo and Micro, the ATmega32u4 is a low-power CMOS 8-bit microcontroller.
    • Flash Memory: 32 KB
    • USB Support: Yes
  9. 9


    A member of the AVR family of microcontrollers, the ATtiny85 is noted for its small size and low power consumption, suitable for simple projects.
    • Flash Memory: 8 KB
    • I/O Pins: 6
  10. 10


    A product of Microchip Technology, the PIC16F877A is a versatile 8-bit microcontroller with integrated features suitable for a wide range of applications.
    • Flash Memory: 14 KB
    • I/O Ports: 33

Missing your favorite microcontroller?

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About this ranking

This is a community-based ranking of the most popular microcontroller. We do our best to provide fair voting, but it is not intended to be exhaustive. So if you notice something or microcontroller is missing, feel free to help improve the ranking!


  • 42 votes
  • 10 ranked items

Voting Rules

A participant may cast an up or down vote for each microcontroller once every 24 hours. The rank of each microcontroller is then calculated from the weighted sum of all up and down votes.

Additional Information

More about the Most Popular Microcontroller

Rank #1 for the most popular microcontroller: STM32 (Source)
Microcontrollers are small computers on a single chip. They control many devices in our daily lives. You can find them in household appliances, cars, and even toys. These tiny units handle tasks efficiently and reliably.

A microcontroller consists of a processor, memory, and input/output peripherals. The processor executes instructions. Memory stores these instructions and data. Input/output peripherals connect the microcontroller to the outside world. This allows it to interact with other devices and sensors.

Microcontrollers are designed for specific tasks. They perform simple, repetitive actions. These tasks include reading sensor data, controlling motors, and managing user interfaces. They work in real-time, meaning they respond to inputs without delay.

One key feature of microcontrollers is their low power consumption. This makes them ideal for battery-operated devices. They can run for long periods without needing a recharge. This is crucial for applications like remote sensors and wearable technology.

Microcontrollers come in various sizes and capabilities. Some have more memory and processing power. Others are smaller and more energy-efficient. The choice of microcontroller depends on the requirements of the application. For example, a simple temperature sensor might need a basic microcontroller. A more complex device, like a smartphone, requires a more advanced one.

Programming microcontrollers is straightforward. Developers use languages like C or assembly. These languages offer control over hardware. This allows for precise timing and efficient use of resources. Many development tools and libraries are available. These tools simplify the programming process.

Microcontrollers are used in many industries. In the automotive industry, they control engine functions, brakes, and infotainment systems. In consumer electronics, they manage devices like microwaves, washing machines, and remote controls. In industrial settings, they automate processes and monitor equipment.

The rise of the Internet of Things (IoT) has increased the demand for microcontrollers. IoT devices connect to the internet and communicate with each other. This connectivity allows for smart homes, smart cities, and advanced healthcare solutions. Microcontrollers play a key role in these devices. They process data from sensors and send it to the cloud for analysis.

Security is a concern with microcontrollers. As they become more connected, they are vulnerable to cyber-attacks. Manufacturers are addressing this by adding security features. These include encryption, secure boot, and hardware-based security modules.

The future of microcontrollers looks promising. Advances in technology will lead to more powerful and efficient units. They will become even more integrated into our lives. We can expect smarter devices, more automation, and improved connectivity.

In summary, microcontrollers are essential components in modern technology. They are versatile, efficient, and reliable. Their role in various applications continues to grow. As technology advances, microcontrollers will remain at the heart of many innovations.

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