In the industry, the most commonly used [STM32](https://www.ampheo.com/search/STM32) [microcontrollers](https://www.ampheo.com/c/microcontrollers) vary depending on the application (e.g., consumer electronics, automotive, industrial control), but the following series are the most widely adopted due to their features, cost-efficiency, and ecosystem support:

**Most Commonly Used [STM32](https://www.onzuu.com/search/STM32) MCUs in Industry:**
**[STM32F1](https://www.ampheo.com/search/STM32F1) Series (e.g., [STM32F103](https://www.ampheo.com/search/STM32F103))**
Nickname: "Blue Pill" (popular dev board)

Core: ARM Cortex-M3

Reasons for popularity:

* Cost-effective
* Widely available
* Stable and mature ecosystem

Used in: Industrial sensors, control systems, low-end IoT devices

**[STM32F4](https://www.ampheo.com/search/STM32F4) Series (e.g., [STM32F407](https://www.ampheo.com/search/STM32F407), [STM32F429](https://www.ampheo.com/search/STM32F429))**
Core: ARM Cortex-M4 with FPU

Features:

* Higher performance
* DSP instructions and floating-point support
* Good peripheral set (Ethernet, USB OTG, CAN, LCD)

Used in: Industrial automation, motor control, audio processing, human-machine interfaces (HMI)

**[STM32G4](https://www.ampheo.com/search/STM32G4) Series**
* Core: ARM Cortex-M4
* Specialty: Precision analog + math acceleration
* Used in: Power electronics, motor control, high-performance analog/mixed-signal applications

**[STM32H7](https://www.ampheo.com/search/STM32H7) Series**
Core: ARM Cortex-M7 (very high performance)

Features:

* Dual-core options (M7 + M4)
* High-speed memory interfaces, advanced security

Used in: High-end industrial controllers, edge computing, industrial vision, secure devices

**[STM32L4](https://www.ampheo.com/search/STM32L4) / [STM32L0](https://www.ampheo.com/search/STM32L0) Series (Low Power)**
* Core: Cortex-M0+ / M4
* Focus: Ultra-low power consumption
* Used in: Battery-powered sensors, medical devices, IoT edge nodes

**Automotive Grade – [STM32F0](https://www.ampheo.com/search/STM32F0)/F4/G4 with AEC-Q100**
* Used in: Automotive applications (BCM, infotainment, ADAS peripherals)
* Qualified for: Harsh environments and temperature ranges

**Popular Choices by Use Case**

**Why [STM32](https://www.ampheoelec.de/search/STM32) is Popular in Industry:**
* Long-term availability
* Wide range of performance vs. power trade-offs
* Excellent ecosystem (STM32CubeMX, STM32CubeIDE, HAL/LL libraries)
* Strong third-party and community support
* Wide supply chain and scalability